/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec4_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:09:59,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:09:59,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:09:59,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:09:59,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:09:59,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:09:59,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:09:59,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:09:59,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:09:59,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:09:59,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:09:59,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:09:59,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:09:59,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:09:59,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:09:59,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:09:59,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:09:59,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:09:59,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:09:59,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:09:59,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:09:59,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:09:59,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:09:59,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:09:59,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:09:59,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:09:59,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:09:59,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:09:59,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:09:59,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:09:59,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:09:59,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:09:59,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:09:59,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:09:59,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:09:59,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:09:59,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:09:59,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:09:59,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:09:59,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:09:59,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:09:59,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:09:59,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:09:59,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:09:59,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:09:59,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:09:59,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:09:59,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:09:59,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:09:59,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:09:59,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:09:59,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:09:59,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:09:59,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:09:59,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:09:59,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:09:59,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:09:59,405 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:09:59,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:09:59,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:09:59,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:09:59,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:09:59,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:09:59,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:09:59,407 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:09:59,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:09:59,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:09:59,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:09:59,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:09:59,980 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:09:59,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-10-23 20:10:00,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236fe19f4/10ce36fc12f845b7b20a16bb05ddcc2a/FLAG407c70402 [2020-10-23 20:10:01,050 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:10:01,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-10-23 20:10:01,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236fe19f4/10ce36fc12f845b7b20a16bb05ddcc2a/FLAG407c70402 [2020-10-23 20:10:01,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236fe19f4/10ce36fc12f845b7b20a16bb05ddcc2a [2020-10-23 20:10:01,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:10:01,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:10:01,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:10:01,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:10:01,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:10:01,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:10:01" (1/1) ... [2020-10-23 20:10:01,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2822bfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:01, skipping insertion in model container [2020-10-23 20:10:01,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:10:01" (1/1) ... [2020-10-23 20:10:01,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:10:01,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:10:01,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:10:01,886 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:10:01,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:10:02,039 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:10:02,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02 WrapperNode [2020-10-23 20:10:02,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:10:02,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:10:02,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:10:02,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:10:02,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (1/1) ... [2020-10-23 20:10:02,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:10:02,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:10:02,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:10:02,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:10:02,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (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 [2020-10-23 20:10:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:10:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:10:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:10:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:10:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:10:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:10:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:10:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:10:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:10:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:10:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:10:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:10:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:10:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:10:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:10:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:10:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:10:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:10:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:10:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:10:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:10:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:10:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:10:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:10:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:10:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:10:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:10:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:10:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:10:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:10:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:10:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:10:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:10:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:10:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:10:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:10:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:10:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:10:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:10:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:10:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:10:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:10:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:10:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:10:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:10:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:10:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:10:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:10:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:10:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:10:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:10:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:10:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:10:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:10:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:10:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:10:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:10:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:10:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:10:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:10:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:10:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:10:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:10:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:10:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:10:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:10:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:10:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:10:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:10:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:10:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:10:03,937 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:10:03,937 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:10:03,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:10:03 BoogieIcfgContainer [2020-10-23 20:10:03,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:10:03,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:10:03,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:10:03,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:10:03,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:10:01" (1/3) ... [2020-10-23 20:10:03,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5426f116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:10:03, skipping insertion in model container [2020-10-23 20:10:03,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:02" (2/3) ... [2020-10-23 20:10:03,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5426f116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:10:03, skipping insertion in model container [2020-10-23 20:10:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:10:03" (3/3) ... [2020-10-23 20:10:03,963 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2020-10-23 20:10:03,977 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:10:03,985 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:10:03,999 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:10:04,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:10:04,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:10:04,036 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:10:04,036 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:10:04,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:10:04,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:10:04,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:10:04,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:10:04,066 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-10-23 20:10:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:10:04,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:04,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:04,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:04,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:04,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1485607836, now seen corresponding path program 1 times [2020-10-23 20:10:04,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:04,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18494268] [2020-10-23 20:10:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:04,216 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,032 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:05,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:10:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:10:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:05,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18494268] [2020-10-23 20:10:05,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:05,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:10:05,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445996453] [2020-10-23 20:10:05,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:10:05,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:05,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:10:05,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:10:05,292 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-10-23 20:10:07,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:07,362 INFO L93 Difference]: Finished difference Result 510 states and 606 transitions. [2020-10-23 20:10:07,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:10:07,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:10:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:07,388 INFO L225 Difference]: With dead ends: 510 [2020-10-23 20:10:07,388 INFO L226 Difference]: Without dead ends: 315 [2020-10-23 20:10:07,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:10:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-10-23 20:10:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-10-23 20:10:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-23 20:10:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 294 transitions. [2020-10-23 20:10:07,685 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 294 transitions. Word has length 148 [2020-10-23 20:10:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:07,690 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 294 transitions. [2020-10-23 20:10:07,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:10:07,690 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 294 transitions. [2020-10-23 20:10:07,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:10:07,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:07,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:07,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:10:07,712 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:07,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:07,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1822927894, now seen corresponding path program 1 times [2020-10-23 20:10:07,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:07,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127618250] [2020-10-23 20:10:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:07,732 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,379 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:08,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:10:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:10:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:08,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127618250] [2020-10-23 20:10:08,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:08,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:10:08,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878046130] [2020-10-23 20:10:08,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:10:08,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:08,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:10:08,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:10:08,544 INFO L87 Difference]: Start difference. First operand 271 states and 294 transitions. Second operand 4 states. [2020-10-23 20:10:09,351 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:10,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:10,719 INFO L93 Difference]: Finished difference Result 414 states and 465 transitions. [2020-10-23 20:10:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:10:10,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:10:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:10,738 INFO L225 Difference]: With dead ends: 414 [2020-10-23 20:10:10,739 INFO L226 Difference]: Without dead ends: 298 [2020-10-23 20:10:10,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:10:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-23 20:10:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-10-23 20:10:10,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 20:10:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 281 transitions. [2020-10-23 20:10:10,888 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 281 transitions. Word has length 149 [2020-10-23 20:10:10,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:10,891 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 281 transitions. [2020-10-23 20:10:10,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:10:10,891 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 281 transitions. [2020-10-23 20:10:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:10:10,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:10,895 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] [2020-10-23 20:10:10,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:10:10,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:10,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:10,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1937905332, now seen corresponding path program 1 times [2020-10-23 20:10:10,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:10,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816170112] [2020-10-23 20:10:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:10,904 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,470 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:10:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:10:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:10:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:11,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816170112] [2020-10-23 20:10:11,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:11,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:10:11,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256363711] [2020-10-23 20:10:11,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:10:11,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:11,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:10:11,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:10:11,652 INFO L87 Difference]: Start difference. First operand 261 states and 281 transitions. Second operand 10 states. [2020-10-23 20:10:12,267 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:12,746 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:13,094 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:10:13,440 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:13,831 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:14,151 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:15,155 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:17,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:17,806 INFO L93 Difference]: Finished difference Result 709 states and 824 transitions. [2020-10-23 20:10:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:10:17,810 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:10:17,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:17,821 INFO L225 Difference]: With dead ends: 709 [2020-10-23 20:10:17,822 INFO L226 Difference]: Without dead ends: 563 [2020-10-23 20:10:17,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:10:17,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-10-23 20:10:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 466. [2020-10-23 20:10:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-23 20:10:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 520 transitions. [2020-10-23 20:10:18,100 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 520 transitions. Word has length 162 [2020-10-23 20:10:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:18,101 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 520 transitions. [2020-10-23 20:10:18,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:10:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 520 transitions. [2020-10-23 20:10:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:10:18,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:18,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:18,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:10:18,106 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:18,107 INFO L82 PathProgramCache]: Analyzing trace with hash 985638500, now seen corresponding path program 1 times [2020-10-23 20:10:18,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:18,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192330602] [2020-10-23 20:10:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:18,112 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,625 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:10:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:10:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:18,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:10:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:19,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192330602] [2020-10-23 20:10:19,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:19,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:10:19,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094832088] [2020-10-23 20:10:19,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:10:19,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:19,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:10:19,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:10:19,013 INFO L87 Difference]: Start difference. First operand 466 states and 520 transitions. Second operand 14 states. [2020-10-23 20:10:19,752 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:20,183 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:20,541 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:20,891 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:21,238 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:21,580 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:22,384 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:23,785 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:24,173 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:24,705 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:25,210 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:25,597 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:25,933 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:26,308 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:26,694 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:27,029 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:27,542 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:28,007 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:28,482 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:28,960 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:31,525 INFO L93 Difference]: Finished difference Result 1603 states and 2010 transitions. [2020-10-23 20:10:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:10:31,526 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:10:31,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:31,548 INFO L225 Difference]: With dead ends: 1603 [2020-10-23 20:10:31,548 INFO L226 Difference]: Without dead ends: 1252 [2020-10-23 20:10:31,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:10:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-10-23 20:10:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1113. [2020-10-23 20:10:32,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-10-23 20:10:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1313 transitions. [2020-10-23 20:10:32,262 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1313 transitions. Word has length 167 [2020-10-23 20:10:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:32,263 INFO L481 AbstractCegarLoop]: Abstraction has 1113 states and 1313 transitions. [2020-10-23 20:10:32,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:10:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1313 transitions. [2020-10-23 20:10:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:10:32,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:32,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:32,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:10:32,271 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:32,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1509679356, now seen corresponding path program 1 times [2020-10-23 20:10:32,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:32,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403230990] [2020-10-23 20:10:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:32,276 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,765 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:32,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:10:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:10:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:10:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:10:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:32,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403230990] [2020-10-23 20:10:32,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:32,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:10:32,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698149817] [2020-10-23 20:10:32,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:10:32,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:10:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:10:32,964 INFO L87 Difference]: Start difference. First operand 1113 states and 1313 transitions. Second operand 6 states. [2020-10-23 20:10:33,577 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:36,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:36,879 INFO L93 Difference]: Finished difference Result 2576 states and 3228 transitions. [2020-10-23 20:10:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:10:36,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:10:36,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:36,896 INFO L225 Difference]: With dead ends: 2576 [2020-10-23 20:10:36,896 INFO L226 Difference]: Without dead ends: 1578 [2020-10-23 20:10:36,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:10:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2020-10-23 20:10:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1450. [2020-10-23 20:10:37,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-23 20:10:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1706 transitions. [2020-10-23 20:10:37,683 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1706 transitions. Word has length 172 [2020-10-23 20:10:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:37,684 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 1706 transitions. [2020-10-23 20:10:37,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:10:37,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1706 transitions. [2020-10-23 20:10:37,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 20:10:37,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:37,693 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:37,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:10:37,694 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:37,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:37,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1509742188, now seen corresponding path program 1 times [2020-10-23 20:10:37,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:37,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009662437] [2020-10-23 20:10:37,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:37,876 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:38,129 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:38,344 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:38,553 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:38,764 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:38,972 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:39,192 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:39,412 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:39,629 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:39,858 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:40,052 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:40,269 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:40,478 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:40,687 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:40,910 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:41,112 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:10:41,335 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:10:41,547 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:10:41,921 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:42,202 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:42,502 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:42,766 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:43,041 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:43,311 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:10:43,589 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:43,857 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:10:43,861 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:46,557 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:46,588 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:47,609 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:47,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:48,799 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:48,806 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:51,286 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:51,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:53,744 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:53,750 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:56,294 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:10:56,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:58,799 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:10:58,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:01,395 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:11:01,402 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:01,408 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:01,699 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:01,972 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:02,237 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:02,488 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:02,746 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:03,002 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:11:03,299 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:11:03,611 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:03,614 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:06,021 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:06,025 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:08,482 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:08,488 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:10,992 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:11:13,379 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:13,384 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:14,568 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:11:14,573 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:16,983 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:11:16,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:19,482 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:11:19,486 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:21,939 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:11:21,946 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:24,332 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:24,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:26,790 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:11:26,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:29,215 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:29,219 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:31,681 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:34,112 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:34,116 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:36,581 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:36,584 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:38,996 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:11:39,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:41,400 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:41,404 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:41,408 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:41,695 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:41,994 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:42,297 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:42,578 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:42,879 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:43,158 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:43,436 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:11:43,714 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:11:43,717 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:46,203 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:11:46,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:47,421 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:47,426 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:49,974 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:49,977 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:52,485 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:11:52,488 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:55,020 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:11:55,025 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:57,568 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:11:57,572 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:59,284 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:59,287 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:01,862 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:01,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:01,870 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:03,111 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:03,114 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:05,535 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:12:05,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:08,032 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:12:08,036 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:10,576 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:10,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:13,074 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:13,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:15,521 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:12:15,525 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:16,772 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:16,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:19,225 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:12:19,230 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:21,689 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:21,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:23,342 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:23,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:25,826 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:25,830 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:28,388 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:28,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:30,935 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:30,939 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:33,499 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:33,504 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:35,139 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:35,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:37,336 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:37,341 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:39,822 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:42,358 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:44,181 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:44,183 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:45,711 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:45,714 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:48,212 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:48,214 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:50,745 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:50,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:53,290 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:12:53,293 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:55,780 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:12:55,784 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:56,105 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:56,418 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:56,730 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:57,041 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:57,352 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:57,691 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:58,004 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:58,302 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:12:58,304 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:00,817 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:00,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:03,372 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:03,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:05,900 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:05,905 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:07,709 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:07,713 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:10,190 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:10,194 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:12,710 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:12,714 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:15,225 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:13:15,229 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:17,809 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:13:17,813 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:17,816 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:18,122 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:18,447 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:18,781 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:19,103 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:19,449 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:19,783 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:20,105 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:20,431 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:20,437 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:22,370 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:24,968 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:13:24,971 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:26,933 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:26,937 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:29,441 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:29,444 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:31,972 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:31,975 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:33,873 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:33,875 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:36,385 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:36,388 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:38,917 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:38,920 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:38,923 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:41,476 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:44,029 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:46,628 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:46,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:48,813 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:48,816 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:51,362 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:51,365 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:53,998 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:54,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:56,610 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:56,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:59,128 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:13:59,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:59,133 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:01,672 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:14:01,675 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:04,210 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:14:04,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:07,101 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:07,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:09,665 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:14:09,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:12,184 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:12,186 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:14,717 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:14,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:17,351 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:14:17,355 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:19,996 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:14:20,001 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:22,656 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:22,660 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:25,315 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:25,319 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:27,933 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:27,936 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:30,606 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:30,609 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:33,210 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:35,818 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:38,428 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:41,092 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:41,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:41,097 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:41,442 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:41,787 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:42,145 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:42,494 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:42,849 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:43,184 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:43,517 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:43,876 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:43,878 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:44,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:14:45,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:14:45,855 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:14:45,856 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:14:45,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:14:45,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:14:45 BoogieIcfgContainer [2020-10-23 20:14:45,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:14:45,901 INFO L168 Benchmark]: Toolchain (without parser) took 284560.70 ms. Allocated memory was 151.0 MB in the beginning and 867.2 MB in the end (delta: 716.2 MB). Free memory was 127.2 MB in the beginning and 555.8 MB in the end (delta: -428.6 MB). Peak memory consumption was 288.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:45,901 INFO L168 Benchmark]: CDTParser took 1.54 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:14:45,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.94 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 105.2 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:45,905 INFO L168 Benchmark]: Boogie Preprocessor took 169.80 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 132.4 MB in the end (delta: -27.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:45,906 INFO L168 Benchmark]: RCFGBuilder took 1734.50 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 85.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 60.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:45,910 INFO L168 Benchmark]: TraceAbstraction took 281948.31 ms. Allocated memory was 151.0 MB in the beginning and 867.2 MB in the end (delta: 716.2 MB). Free memory was 84.7 MB in the beginning and 555.8 MB in the end (delta: -471.2 MB). Peak memory consumption was 245.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:14:45,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 687.94 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 105.2 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.80 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 132.4 MB in the end (delta: -27.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1734.50 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 85.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 60.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 281948.31 ms. Allocated memory was 151.0 MB in the beginning and 867.2 MB in the end (delta: 716.2 MB). Free memory was 84.7 MB in the beginning and 555.8 MB in the end (delta: -471.2 MB). Peak memory consumption was 245.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L336] int cleanupTimeShifts = 4; [L436] int waterLevel = 1; [L437] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L412] int retValue_acc ; [L413] int tmp ; [L417] FCALL select_helpers() [L418] FCALL select_features() [L419] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L419] RET, EXPR valid_product() [L419] tmp = valid_product() [L421] COND TRUE \read(tmp) [L423] FCALL setup() [L424] CALL runTest() [L403] CALL test() [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) [L70] CALL waterRise() [L454] COND TRUE waterLevel < 2 [L455] waterLevel = waterLevel + 1 [L70] RET waterRise() [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) [L98] CALL stopSystem() [L307] COND FALSE !(\read(pumpRunning)) [L314] systemActive = 0 [L98] RET stopSystem() [L105] CALL timeShift() [L133] COND FALSE !(\read(pumpRunning)) [L140] COND FALSE !(\read(systemActive)) [L148] CALL __utac_acc__Specification4_spec__1() [L897] int tmp ; [L898] int tmp___0 ; [L902] CALL, EXPR getWaterLevel() [L507] int retValue_acc ; [L510] retValue_acc = waterLevel [L511] return (retValue_acc); [L902] RET, EXPR getWaterLevel() [L902] tmp = getWaterLevel() [L904] COND FALSE !(tmp == 0) [L148] RET __utac_acc__Specification4_spec__1() [L105] RET timeShift() [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) [L70] CALL waterRise() [L454] COND TRUE waterLevel < 2 [L455] waterLevel = waterLevel + 1 [L70] RET waterRise() [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___1)) [L105] CALL timeShift() [L133] COND FALSE !(\read(pumpRunning)) [L140] COND FALSE !(\read(systemActive)) [L148] CALL __utac_acc__Specification4_spec__1() [L897] int tmp ; [L898] int tmp___0 ; [L902] CALL, EXPR getWaterLevel() [L507] int retValue_acc ; [L510] retValue_acc = waterLevel [L511] return (retValue_acc); [L902] RET, EXPR getWaterLevel() [L902] tmp = getWaterLevel() [L904] COND TRUE tmp == 0 [L906] CALL, EXPR isPumpRunning() [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); [L906] RET, EXPR isPumpRunning() [L906] tmp___0 = isPumpRunning() [L908] COND TRUE \read(tmp___0) [L910] CALL __automaton_fail() [L331] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product40.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 641 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 281.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1282 SDtfs, 2204 SDslu, 2409 SDs, 0 SdLazy, 5121 SolverSat, 775 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 445 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...