/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_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:45:33,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:45:33,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:45:33,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:45:33,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:45:33,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:45:33,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:45:33,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:45:33,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:45:33,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:45:33,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:45:33,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:45:33,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:45:33,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:45:33,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:45:33,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:45:33,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:45:33,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:45:33,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:45:33,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:45:33,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:45:33,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:45:33,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:45:33,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:45:33,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:45:33,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:45:33,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:45:33,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:45:33,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:45:33,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:45:33,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:45:33,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:45:33,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:45:33,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:45:33,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:45:33,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:45:33,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:45:33,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:45:33,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:45:33,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:45:33,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:45:33,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:45:33,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:45:33,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:45:33,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:45:33,304 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:45:33,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:45:33,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:45:33,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:45:33,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:45:33,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:45:33,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:45:33,307 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:45:33,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:45:33,307 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:45:33,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:45:33,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:45:33,308 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:45:33,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:45:33,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:45:33,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:45:33,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:45:33,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:45:33,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:45:33,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:45:33,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:45:33,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:45:33,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:45:33,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:45:33,753 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:45:33,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-11-06 23:45:33,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f671076a/d8ab6c798323410c867bd19fdb93bec3/FLAG5e6223278 [2020-11-06 23:45:34,628 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:45:34,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-11-06 23:45:34,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f671076a/d8ab6c798323410c867bd19fdb93bec3/FLAG5e6223278 [2020-11-06 23:45:34,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f671076a/d8ab6c798323410c867bd19fdb93bec3 [2020-11-06 23:45:34,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:45:34,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:45:34,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:45:34,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:45:34,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:45:34,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:45:34" (1/1) ... [2020-11-06 23:45:34,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8019e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:34, skipping insertion in model container [2020-11-06 23:45:34,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:45:34" (1/1) ... [2020-11-06 23:45:34,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:45:35,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:45:35,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:45:35,442 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:45:35,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:45:35,623 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:45:35,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35 WrapperNode [2020-11-06 23:45:35,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:45:35,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:45:35,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:45:35,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:45:35,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (1/1) ... [2020-11-06 23:45:35,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:45:35,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:45:35,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:45:35,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:45:35,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (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 [2020-11-06 23:45:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:45:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:45:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:45:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:45:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:45:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:45:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 23:45:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:45:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:45:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:45:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:45:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:45:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:45:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:45:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:45:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-06 23:45:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:45:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:45:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:45:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:45:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:45:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:45:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:45:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:45:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:45:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:45:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:45:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:45:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:45:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:45:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:45:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:45:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:45:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:45:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:45:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:45:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:45:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:45:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:45:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:45:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:45:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:45:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:45:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:45:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:45:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:45:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:45:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:45:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:45:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:45:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 23:45:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:45:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:45:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:45:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:45:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:45:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:45:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:45:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:45:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:45:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:45:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:45:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:45:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:45:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:45:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:45:37,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:45:37,124 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:45:37,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:45:37 BoogieIcfgContainer [2020-11-06 23:45:37,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:45:37,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:45:37,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:45:37,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:45:37,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:45:34" (1/3) ... [2020-11-06 23:45:37,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f575abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:45:37, skipping insertion in model container [2020-11-06 23:45:37,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:35" (2/3) ... [2020-11-06 23:45:37,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f575abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:45:37, skipping insertion in model container [2020-11-06 23:45:37,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:45:37" (3/3) ... [2020-11-06 23:45:37,137 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-11-06 23:45:37,154 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:45:37,158 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:45:37,172 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:45:37,198 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:45:37,198 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:45:37,198 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:45:37,198 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:45:37,199 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:45:37,199 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:45:37,199 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:45:37,199 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:45:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-11-06 23:45:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 23:45:37,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:37,249 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] [2020-11-06 23:45:37,250 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]=== [2020-11-06 23:45:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:37,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1406426348, now seen corresponding path program 1 times [2020-11-06 23:45:37,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:37,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346825677] [2020-11-06 23:45:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:37,352 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,033 WARN L194 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:38,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:45:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:45:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:38,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346825677] [2020-11-06 23:45:38,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:38,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:45:38,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994760823] [2020-11-06 23:45:38,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:45:38,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:38,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:45:38,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:45:38,283 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 3 states. [2020-11-06 23:45:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:40,115 INFO L93 Difference]: Finished difference Result 500 states and 598 transitions. [2020-11-06 23:45:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:45:40,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-06 23:45:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:40,135 INFO L225 Difference]: With dead ends: 500 [2020-11-06 23:45:40,135 INFO L226 Difference]: Without dead ends: 310 [2020-11-06 23:45:40,141 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 [2020-11-06 23:45:40,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-06 23:45:40,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 266. [2020-11-06 23:45:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-06 23:45:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2020-11-06 23:45:40,340 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 148 [2020-11-06 23:45:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:40,342 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2020-11-06 23:45:40,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:45:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2020-11-06 23:45:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-06 23:45:40,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:40,347 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] [2020-11-06 23:45:40,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:45:40,348 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]=== [2020-11-06 23:45:40,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:40,348 INFO L82 PathProgramCache]: Analyzing trace with hash -106109962, now seen corresponding path program 1 times [2020-11-06 23:45:40,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:40,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73435375] [2020-11-06 23:45:40,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:40,353 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,802 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:40,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:45:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:45:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:40,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73435375] [2020-11-06 23:45:40,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:40,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:45:40,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347422305] [2020-11-06 23:45:40,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:45:40,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:40,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:45:40,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:45:40,936 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand 4 states. [2020-11-06 23:45:41,826 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:45:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:43,159 INFO L93 Difference]: Finished difference Result 404 states and 457 transitions. [2020-11-06 23:45:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 23:45:43,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-06 23:45:43,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:43,167 INFO L225 Difference]: With dead ends: 404 [2020-11-06 23:45:43,167 INFO L226 Difference]: Without dead ends: 293 [2020-11-06 23:45:43,169 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 [2020-11-06 23:45:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-11-06 23:45:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 256. [2020-11-06 23:45:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-11-06 23:45:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 277 transitions. [2020-11-06 23:45:43,333 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 277 transitions. Word has length 149 [2020-11-06 23:45:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:43,334 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 277 transitions. [2020-11-06 23:45:43,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:45:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 277 transitions. [2020-11-06 23:45:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-06 23:45:43,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:43,337 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] [2020-11-06 23:45:43,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:45:43,338 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]=== [2020-11-06 23:45:43,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:43,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1588560830, now seen corresponding path program 1 times [2020-11-06 23:45:43,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:43,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234444709] [2020-11-06 23:45:43,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:43,343 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:43,854 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:43,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:43,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:43,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:43,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:43,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-06 23:45:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:44,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:45:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:44,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:45:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:44,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234444709] [2020-11-06 23:45:44,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:44,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:45:44,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827183679] [2020-11-06 23:45:44,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:45:44,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:44,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:45:44,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:45:44,075 INFO L87 Difference]: Start difference. First operand 256 states and 277 transitions. Second operand 10 states. [2020-11-06 23:45:44,708 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:45:45,207 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:45:45,602 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:45:46,067 WARN L194 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:46,477 WARN L194 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:45:46,864 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:48,076 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:45:51,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:51,129 INFO L93 Difference]: Finished difference Result 694 states and 812 transitions. [2020-11-06 23:45:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:45:51,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-11-06 23:45:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:51,139 INFO L225 Difference]: With dead ends: 694 [2020-11-06 23:45:51,140 INFO L226 Difference]: Without dead ends: 553 [2020-11-06 23:45:51,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:45:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-11-06 23:45:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 456. [2020-11-06 23:45:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-11-06 23:45:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 512 transitions. [2020-11-06 23:45:51,397 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 512 transitions. Word has length 162 [2020-11-06 23:45:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:51,399 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 512 transitions. [2020-11-06 23:45:51,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:45:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 512 transitions. [2020-11-06 23:45:51,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-06 23:45:51,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:51,406 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] [2020-11-06 23:45:51,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:45:51,407 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]=== [2020-11-06 23:45:51,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:51,407 INFO L82 PathProgramCache]: Analyzing trace with hash -622039522, now seen corresponding path program 1 times [2020-11-06 23:45:51,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:51,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347281944] [2020-11-06 23:45:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:51,415 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:51,938 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:51,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:51,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:51,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:51,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-06 23:45:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:45:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:45:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:52,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347281944] [2020-11-06 23:45:52,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:52,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:45:52,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727225445] [2020-11-06 23:45:52,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:45:52,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:52,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:45:52,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:45:52,093 INFO L87 Difference]: Start difference. First operand 456 states and 512 transitions. Second operand 9 states. [2020-11-06 23:45:52,761 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:45:54,337 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:54,744 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:45:55,278 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:45:55,697 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:56,121 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:56,633 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:45:57,060 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:57,757 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:45:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:59,218 INFO L93 Difference]: Finished difference Result 1255 states and 1513 transitions. [2020-11-06 23:45:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:45:59,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-11-06 23:45:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:59,226 INFO L225 Difference]: With dead ends: 1255 [2020-11-06 23:45:59,227 INFO L226 Difference]: Without dead ends: 914 [2020-11-06 23:45:59,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:45:59,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-11-06 23:45:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 757. [2020-11-06 23:45:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2020-11-06 23:45:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 864 transitions. [2020-11-06 23:45:59,583 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 864 transitions. Word has length 167 [2020-11-06 23:45:59,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:59,583 INFO L481 AbstractCegarLoop]: Abstraction has 757 states and 864 transitions. [2020-11-06 23:45:59,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:45:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 864 transitions. [2020-11-06 23:45:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-06 23:45:59,588 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:59,588 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] [2020-11-06 23:45:59,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:45:59,588 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]=== [2020-11-06 23:45:59,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:59,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1623675934, now seen corresponding path program 1 times [2020-11-06 23:45:59,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:59,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385716618] [2020-11-06 23:45:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:59,593 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:59,980 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:59,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:46:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:46:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:46:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:00,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385716618] [2020-11-06 23:46:00,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:00,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:46:00,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245416408] [2020-11-06 23:46:00,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:46:00,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:00,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:46:00,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:46:00,175 INFO L87 Difference]: Start difference. First operand 757 states and 864 transitions. Second operand 10 states. [2020-11-06 23:46:00,841 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:02,501 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:02,911 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:03,343 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:03,764 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:04,162 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:05,201 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:05,586 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:06,109 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:07,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:07,629 INFO L93 Difference]: Finished difference Result 1977 states and 2452 transitions. [2020-11-06 23:46:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:46:07,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-11-06 23:46:07,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:07,640 INFO L225 Difference]: With dead ends: 1977 [2020-11-06 23:46:07,641 INFO L226 Difference]: Without dead ends: 1335 [2020-11-06 23:46:07,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-06 23:46:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2020-11-06 23:46:08,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1067. [2020-11-06 23:46:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-11-06 23:46:08,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1235 transitions. [2020-11-06 23:46:08,072 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1235 transitions. Word has length 172 [2020-11-06 23:46:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:08,073 INFO L481 AbstractCegarLoop]: Abstraction has 1067 states and 1235 transitions. [2020-11-06 23:46:08,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:46:08,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1235 transitions. [2020-11-06 23:46:08,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-06 23:46:08,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:08,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:08,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:46:08,078 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]=== [2020-11-06 23:46:08,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:08,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1114926034, now seen corresponding path program 1 times [2020-11-06 23:46:08,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:08,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910836189] [2020-11-06 23:46:08,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:08,082 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,495 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:46:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:46:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-06 23:46:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 23:46:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:08,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910836189] [2020-11-06 23:46:08,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:08,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-06 23:46:08,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231507941] [2020-11-06 23:46:08,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 23:46:08,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:08,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 23:46:08,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-11-06 23:46:08,805 INFO L87 Difference]: Start difference. First operand 1067 states and 1235 transitions. Second operand 14 states. [2020-11-06 23:46:09,584 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:09,997 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:10,416 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:10,806 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:11,173 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:12,506 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:12,928 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:13,354 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:13,787 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:14,158 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:16,993 INFO L93 Difference]: Finished difference Result 2648 states and 3401 transitions. [2020-11-06 23:46:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 23:46:16,994 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 205 [2020-11-06 23:46:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:17,008 INFO L225 Difference]: With dead ends: 2648 [2020-11-06 23:46:17,008 INFO L226 Difference]: Without dead ends: 1696 [2020-11-06 23:46:17,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-11-06 23:46:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-11-06 23:46:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1097. [2020-11-06 23:46:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-11-06 23:46:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1267 transitions. [2020-11-06 23:46:17,674 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1267 transitions. Word has length 205 [2020-11-06 23:46:17,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:17,675 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1267 transitions. [2020-11-06 23:46:17,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 23:46:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1267 transitions. [2020-11-06 23:46:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-06 23:46:17,679 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:17,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:17,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:46:17,680 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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]=== [2020-11-06 23:46:17,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:17,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1240130418, now seen corresponding path program 1 times [2020-11-06 23:46:17,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:17,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412455289] [2020-11-06 23:46:17,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:17,684 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,045 WARN L194 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:18,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:46:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:46:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-06 23:46:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 23:46:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:18,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:18,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412455289] [2020-11-06 23:46:18,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:18,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:46:18,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245374272] [2020-11-06 23:46:18,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:46:18,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:18,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:46:18,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:46:18,289 INFO L87 Difference]: Start difference. First operand 1097 states and 1267 transitions. Second operand 11 states. [2020-11-06 23:46:20,158 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:20,586 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:20,988 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:46:21,386 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:21,815 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:22,198 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:24,465 INFO L93 Difference]: Finished difference Result 2690 states and 3378 transitions. [2020-11-06 23:46:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 23:46:24,466 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-11-06 23:46:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:24,478 INFO L225 Difference]: With dead ends: 2690 [2020-11-06 23:46:24,478 INFO L226 Difference]: Without dead ends: 1708 [2020-11-06 23:46:24,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-11-06 23:46:24,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2020-11-06 23:46:25,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1129. [2020-11-06 23:46:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-11-06 23:46:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1299 transitions. [2020-11-06 23:46:25,191 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1299 transitions. Word has length 205 [2020-11-06 23:46:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:25,192 INFO L481 AbstractCegarLoop]: Abstraction has 1129 states and 1299 transitions. [2020-11-06 23:46:25,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:46:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1299 transitions. [2020-11-06 23:46:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-06 23:46:25,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:25,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:25,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:46:25,197 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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]=== [2020-11-06 23:46:25,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:25,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1805420175, now seen corresponding path program 1 times [2020-11-06 23:46:25,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:25,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788805730] [2020-11-06 23:46:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:25,202 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,593 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:25,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:46:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:46:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-06 23:46:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 23:46:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:25,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788805730] [2020-11-06 23:46:25,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:25,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 23:46:25,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286423029] [2020-11-06 23:46:25,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 23:46:25,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:25,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 23:46:25,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 23:46:25,793 INFO L87 Difference]: Start difference. First operand 1129 states and 1299 transitions. Second operand 8 states. [2020-11-06 23:46:26,546 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:27,352 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:33,182 INFO L93 Difference]: Finished difference Result 4249 states and 5467 transitions. [2020-11-06 23:46:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 23:46:33,183 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2020-11-06 23:46:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:33,205 INFO L225 Difference]: With dead ends: 4249 [2020-11-06 23:46:33,205 INFO L226 Difference]: Without dead ends: 3235 [2020-11-06 23:46:33,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-11-06 23:46:33,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2020-11-06 23:46:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 2309. [2020-11-06 23:46:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2020-11-06 23:46:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 2679 transitions. [2020-11-06 23:46:34,646 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 2679 transitions. Word has length 205 [2020-11-06 23:46:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:34,647 INFO L481 AbstractCegarLoop]: Abstraction has 2309 states and 2679 transitions. [2020-11-06 23:46:34,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 23:46:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 2679 transitions. [2020-11-06 23:46:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-06 23:46:34,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:34,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:34,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:46:34,652 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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]=== [2020-11-06 23:46:34,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:34,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1489797100, now seen corresponding path program 1 times [2020-11-06 23:46:34,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:34,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427775049] [2020-11-06 23:46:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:34,656 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:46:34,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:46:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:46:34,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:46:35,029 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:46:35,029 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:46:35,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:46:35,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:46:35 BoogieIcfgContainer [2020-11-06 23:46:35,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:46:35,072 INFO L168 Benchmark]: Toolchain (without parser) took 60134.42 ms. Allocated memory was 151.0 MB in the beginning and 997.2 MB in the end (delta: 846.2 MB). Free memory was 126.1 MB in the beginning and 696.5 MB in the end (delta: -570.4 MB). Peak memory consumption was 276.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:46:35,079 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:46:35,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.02 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:46:35,084 INFO L168 Benchmark]: Boogie Preprocessor took 122.88 ms. Allocated memory is still 151.0 MB. Free memory was 104.4 MB in the beginning and 133.2 MB in the end (delta: -28.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2020-11-06 23:46:35,085 INFO L168 Benchmark]: RCFGBuilder took 1378.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 133.2 MB in the beginning and 117.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 8.0 GB. [2020-11-06 23:46:35,087 INFO L168 Benchmark]: TraceAbstraction took 57940.75 ms. Allocated memory was 181.4 MB in the beginning and 997.2 MB in the end (delta: 815.8 MB). Free memory was 116.6 MB in the beginning and 696.5 MB in the end (delta: -579.9 MB). Peak memory consumption was 235.3 MB. Max. memory is 8.0 GB. [2020-11-06 23:46:35,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 677.02 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.88 ms. Allocated memory is still 151.0 MB. Free memory was 104.4 MB in the beginning and 133.2 MB in the end (delta: -28.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1378.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 133.2 MB in the beginning and 117.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 57940.75 ms. Allocated memory was 181.4 MB in the beginning and 997.2 MB in the end (delta: 815.8 MB). Free memory was 116.6 MB in the beginning and 696.5 MB in the end (delta: -579.9 MB). Peak memory consumption was 235.3 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: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L666] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; [L430] int retValue_acc ; [L431] int tmp ; [L435] FCALL select_helpers() [L436] FCALL select_features() [L437] CALL, EXPR valid_product() [L479] int retValue_acc ; [L482] retValue_acc = 1 [L483] return (retValue_acc); [L437] RET, EXPR valid_product() [L437] tmp = valid_product() [L439] COND TRUE \read(tmp) [L441] FCALL setup() [L442] CALL runTest() [L421] CALL test() [L259] int splverifierCounter ; [L260] int tmp ; [L261] int tmp___0 ; [L262] int tmp___1 ; [L263] int tmp___2 ; [L266] splverifierCounter = 0 [L268] COND TRUE 1 [L270] COND TRUE splverifierCounter < 4 [L276] tmp = __VERIFIER_nondet_int() [L278] COND TRUE \read(tmp) [L280] CALL waterRise() [L882] COND TRUE waterLevel < 2 [L883] waterLevel = waterLevel + 1 [L280] RET waterRise() [L286] tmp___0 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp___0) [L290] CALL changeMethaneLevel() [L894] COND FALSE !(\read(methaneLevelCritical)) [L897] methaneLevelCritical = 1 [L290] RET changeMethaneLevel() [L296] tmp___2 = __VERIFIER_nondet_int() [L298] COND TRUE \read(tmp___2) [L300] CALL startSystem() [L250] systemActive = 1 [L300] RET startSystem() [L315] CALL timeShift() [L61] COND FALSE !(\read(pumpRunning)) [L68] COND TRUE \read(systemActive) [L70] CALL processEnvironment() [L116] int tmp ; [L119] COND FALSE !(\read(pumpRunning)) [L134] CALL processEnvironment__wrappee__highWaterSensor() [L90] int tmp ; [L93] COND TRUE ! pumpRunning [L95] CALL, EXPR isHighWaterLevel() [L213] int retValue_acc ; [L214] int tmp ; [L215] int tmp___0 ; [L219] CALL, EXPR isHighWaterSensorDry() [L944] int retValue_acc ; [L947] COND FALSE !(waterLevel < 2) [L951] retValue_acc = 0 [L952] return (retValue_acc); [L219] RET, EXPR isHighWaterSensorDry() [L219] tmp = isHighWaterSensorDry() [L221] COND FALSE !(\read(tmp)) [L224] tmp___0 = 1 [L226] retValue_acc = tmp___0 [L227] return (retValue_acc); [L95] RET, EXPR isHighWaterLevel() [L95] tmp = isHighWaterLevel() [L97] COND TRUE \read(tmp) [L99] CALL activatePump() [L144] pumpRunning = 1 [L99] RET activatePump() [L134] RET processEnvironment__wrappee__highWaterSensor() [L70] RET processEnvironment() [L76] CALL __utac_acc__Specification1_spec__1() [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isMethaneLevelCritical() [L903] int retValue_acc ; [L906] retValue_acc = methaneLevelCritical [L907] return (retValue_acc); [L334] RET, EXPR isMethaneLevelCritical() [L334] tmp = isMethaneLevelCritical() [L336] COND TRUE \read(tmp) [L338] CALL, EXPR isPumpRunning() [L168] int retValue_acc ; [L171] retValue_acc = pumpRunning [L172] return (retValue_acc); [L338] RET, EXPR isPumpRunning() [L338] tmp___0 = isPumpRunning() [L340] COND TRUE \read(tmp___0) [L342] CALL __automaton_fail() [L492] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_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: 57.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 47.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2065 SDtfs, 4328 SDslu, 4495 SDs, 0 SdLazy, 9118 SolverSat, 1446 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 19.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2309occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2707 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...