/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_spec2_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:52:48,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:52:48,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:52:48,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:52:48,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:52:48,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:52:48,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:52:48,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:52:48,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:52:48,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:52:48,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:52:48,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:52:48,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:52:48,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:52:48,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:52:48,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:52:48,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:52:48,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:52:48,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:52:48,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:52:48,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:52:48,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:52:48,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:52:48,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:52:49,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:52:49,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:52:49,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:52:49,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:52:49,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:52:49,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:52:49,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:52:49,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:52:49,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:52:49,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:52:49,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:52:49,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:52:49,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:52:49,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:52:49,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:52:49,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:52:49,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:52:49,024 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 23:52:49,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:52:49,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:52:49,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:52:49,050 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:52:49,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:52:49,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:52:49,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:52:49,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:52:49,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:52:49,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:52:49,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:52:49,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:52:49,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:52:49,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:52:49,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:52:49,052 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:52:49,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:52:49,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:52:49,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:52:49,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:52:49,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:52:49,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:52:49,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:52:49,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:52:49,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:52:49,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:52:49,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:52:49,468 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:52:49,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2020-11-06 23:52:49,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44eab2da/1a2d5e996ce94b17bf270484b7d61353/FLAGd9f826026 [2020-11-06 23:52:50,190 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:52:50,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2020-11-06 23:52:50,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44eab2da/1a2d5e996ce94b17bf270484b7d61353/FLAGd9f826026 [2020-11-06 23:52:50,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44eab2da/1a2d5e996ce94b17bf270484b7d61353 [2020-11-06 23:52:50,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:52:50,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:52:50,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:52:50,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:52:50,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:52:50,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:52:50" (1/1) ... [2020-11-06 23:52:50,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17979ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:50, skipping insertion in model container [2020-11-06 23:52:50,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:52:50" (1/1) ... [2020-11-06 23:52:50,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:52:50,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:52:50,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:52:50,960 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:52:51,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:52:51,167 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:52:51,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51 WrapperNode [2020-11-06 23:52:51,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:52:51,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:52:51,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:52:51,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:52:51,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (1/1) ... [2020-11-06 23:52:51,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:52:51,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:52:51,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:52:51,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:52:51,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (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 23:52:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:52:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:52:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:52:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:52:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:52:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:52:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:52:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:52:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:52:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:52:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:52:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:52:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:52:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:52:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:52:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:52:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:52:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:52:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:52:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:52:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:52:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:52:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:52:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:52:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:52:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:52:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:52:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:52:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:52:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:52:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:52:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:52:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:52:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:52:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:52:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:52:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:52:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:52:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:52:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:52:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:52:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:52:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:52:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:52:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:52:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:52:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:52:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:52:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:52:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-11-06 23:52:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:52:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:52:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:52:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:52:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:52:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:52:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:52:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:52:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:52:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-11-06 23:52:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:52:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:52:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:52:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:52:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:52:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:52:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:52:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:52:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:52:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:52:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:52:52,868 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:52:52,869 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:52:52,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:52:52 BoogieIcfgContainer [2020-11-06 23:52:52,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:52:52,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:52:52,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:52:52,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:52:52,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:52:50" (1/3) ... [2020-11-06 23:52:52,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324cf070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:52:52, skipping insertion in model container [2020-11-06 23:52:52,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:51" (2/3) ... [2020-11-06 23:52:52,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324cf070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:52:52, skipping insertion in model container [2020-11-06 23:52:52,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:52:52" (3/3) ... [2020-11-06 23:52:52,884 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-11-06 23:52:52,900 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:52:52,905 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:52:52,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:52:52,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:52:52,941 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:52:52,942 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:52:52,942 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:52:52,942 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:52:52,942 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:52:52,942 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:52:52,942 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:52:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-11-06 23:52:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-11-06 23:52:52,986 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:52:52,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:52:52,988 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 23:52:52,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:52:52,995 INFO L82 PathProgramCache]: Analyzing trace with hash -841221585, now seen corresponding path program 1 times [2020-11-06 23:52:53,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:52:53,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219618237] [2020-11-06 23:52:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:52:53,077 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:52:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,701 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:52:53,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:52:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:52:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:52:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:52:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:52:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:52:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:52:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-06 23:52:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:53,865 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 23:52:53,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219618237] [2020-11-06 23:52:53,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:52:53,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:52:53,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398216892] [2020-11-06 23:52:53,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:52:53,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:52:53,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:52:53,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:52:53,892 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-11-06 23:52:55,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:52:55,555 INFO L93 Difference]: Finished difference Result 499 states and 588 transitions. [2020-11-06 23:52:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 23:52:55,557 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-11-06 23:52:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:52:55,575 INFO L225 Difference]: With dead ends: 499 [2020-11-06 23:52:55,575 INFO L226 Difference]: Without dead ends: 318 [2020-11-06 23:52:55,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:52:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-06 23:52:55,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 268. [2020-11-06 23:52:55,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-11-06 23:52:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-11-06 23:52:55,794 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 154 [2020-11-06 23:52:55,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:52:55,795 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-11-06 23:52:55,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:52:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-11-06 23:52:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-06 23:52:55,800 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:52:55,800 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] [2020-11-06 23:52:55,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:52:55,801 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 23:52:55,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:52:55,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1715769147, now seen corresponding path program 1 times [2020-11-06 23:52:55,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:52:55,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374671989] [2020-11-06 23:52:55,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:52:55,806 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:52:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,361 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:52:56,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:52:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:52:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:52:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:52:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:52:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:52:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-06 23:52:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:52:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:56,464 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 23:52:56,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374671989] [2020-11-06 23:52:56,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:52:56,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 23:52:56,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482508921] [2020-11-06 23:52:56,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 23:52:56,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:52:56,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 23:52:56,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:52:56,468 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 5 states. [2020-11-06 23:52:57,370 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:52:58,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:52:58,653 INFO L93 Difference]: Finished difference Result 416 states and 469 transitions. [2020-11-06 23:52:58,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 23:52:58,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-11-06 23:52:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:52:58,659 INFO L225 Difference]: With dead ends: 416 [2020-11-06 23:52:58,659 INFO L226 Difference]: Without dead ends: 307 [2020-11-06 23:52:58,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-06 23:52:58,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-11-06 23:52:58,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 258. [2020-11-06 23:52:58,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-06 23:52:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-11-06 23:52:58,786 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 155 [2020-11-06 23:52:58,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:52:58,787 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-11-06 23:52:58,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 23:52:58,787 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-11-06 23:52:58,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-11-06 23:52:58,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:52:58,790 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] [2020-11-06 23:52:58,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:52:58,791 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 23:52:58,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:52:58,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1013296111, now seen corresponding path program 1 times [2020-11-06 23:52:58,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:52:58,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629386245] [2020-11-06 23:52:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:52:58,797 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:52:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,291 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:52:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:52:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:52:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:52:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:52:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:52:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:52:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-06 23:52:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-06 23:52:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:52:59,483 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 23:52:59,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629386245] [2020-11-06 23:52:59,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:52:59,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:52:59,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152903073] [2020-11-06 23:52:59,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:52:59,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:52:59,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:52:59,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:52:59,487 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 10 states. [2020-11-06 23:53:00,182 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:00,662 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:01,055 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:53:01,440 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:01,856 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:02,222 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:03,512 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:06,155 INFO L93 Difference]: Finished difference Result 680 states and 783 transitions. [2020-11-06 23:53:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:53:06,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-11-06 23:53:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:06,161 INFO L225 Difference]: With dead ends: 680 [2020-11-06 23:53:06,162 INFO L226 Difference]: Without dead ends: 542 [2020-11-06 23:53:06,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:53:06,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-11-06 23:53:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 451. [2020-11-06 23:53:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-11-06 23:53:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 500 transitions. [2020-11-06 23:53:06,410 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 500 transitions. Word has length 164 [2020-11-06 23:53:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:06,411 INFO L481 AbstractCegarLoop]: Abstraction has 451 states and 500 transitions. [2020-11-06 23:53:06,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:53:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 500 transitions. [2020-11-06 23:53:06,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-06 23:53:06,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:06,418 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 23:53:06,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:53:06,418 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 23:53:06,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:06,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1540286820, now seen corresponding path program 1 times [2020-11-06 23:53:06,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:06,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374819820] [2020-11-06 23:53:06,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:06,424 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:06,998 WARN L194 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:06,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:53:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-11-06 23:53:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-11-06 23:53:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:07,157 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 23:53:07,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374819820] [2020-11-06 23:53:07,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:07,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 23:53:07,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782067946] [2020-11-06 23:53:07,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 23:53:07,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:07,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 23:53:07,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 23:53:07,160 INFO L87 Difference]: Start difference. First operand 451 states and 500 transitions. Second operand 7 states. [2020-11-06 23:53:07,931 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:10,052 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:10,860 INFO L93 Difference]: Finished difference Result 1122 states and 1327 transitions. [2020-11-06 23:53:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-06 23:53:10,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-11-06 23:53:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:10,868 INFO L225 Difference]: With dead ends: 1122 [2020-11-06 23:53:10,868 INFO L226 Difference]: Without dead ends: 791 [2020-11-06 23:53:10,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-06 23:53:10,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-11-06 23:53:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 661. [2020-11-06 23:53:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-11-06 23:53:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 734 transitions. [2020-11-06 23:53:11,183 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 734 transitions. Word has length 172 [2020-11-06 23:53:11,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:11,184 INFO L481 AbstractCegarLoop]: Abstraction has 661 states and 734 transitions. [2020-11-06 23:53:11,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 23:53:11,184 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 734 transitions. [2020-11-06 23:53:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-06 23:53:11,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:11,186 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] [2020-11-06 23:53:11,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:53:11,187 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 23:53:11,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:11,188 INFO L82 PathProgramCache]: Analyzing trace with hash -987501602, now seen corresponding path program 1 times [2020-11-06 23:53:11,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:11,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77858164] [2020-11-06 23:53:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:11,191 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,609 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:11,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:53:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:53:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:53:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:11,801 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 23:53:11,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77858164] [2020-11-06 23:53:11,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:11,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:53:11,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449337135] [2020-11-06 23:53:11,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:53:11,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:11,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:53:11,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:53:11,803 INFO L87 Difference]: Start difference. First operand 661 states and 734 transitions. Second operand 10 states. [2020-11-06 23:53:12,522 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:13,921 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:14,320 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:14,754 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:15,169 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:15,567 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:15,945 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:16,349 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:16,928 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:19,358 INFO L93 Difference]: Finished difference Result 1785 states and 2094 transitions. [2020-11-06 23:53:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-06 23:53:19,359 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-06 23:53:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:19,368 INFO L225 Difference]: With dead ends: 1785 [2020-11-06 23:53:19,368 INFO L226 Difference]: Without dead ends: 1244 [2020-11-06 23:53:19,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-11-06 23:53:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2020-11-06 23:53:19,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1097. [2020-11-06 23:53:19,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-11-06 23:53:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1223 transitions. [2020-11-06 23:53:19,832 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1223 transitions. Word has length 173 [2020-11-06 23:53:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:19,833 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1223 transitions. [2020-11-06 23:53:19,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:53:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1223 transitions. [2020-11-06 23:53:19,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-06 23:53:19,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:19,836 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] [2020-11-06 23:53:19,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:53:19,837 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 23:53:19,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:19,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1017411910, now seen corresponding path program 1 times [2020-11-06 23:53:19,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:19,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557594225] [2020-11-06 23:53:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:19,841 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,254 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:20,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-06 23:53:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:53:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-06 23:53:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:20,459 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 23:53:20,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557594225] [2020-11-06 23:53:20,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:20,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:53:20,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259996427] [2020-11-06 23:53:20,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:53:20,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:20,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:53:20,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:53:20,463 INFO L87 Difference]: Start difference. First operand 1097 states and 1223 transitions. Second operand 11 states. [2020-11-06 23:53:21,166 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:22,876 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:23,283 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:23,746 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:24,153 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:24,597 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:25,638 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:26,034 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:26,541 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:27,966 INFO L93 Difference]: Finished difference Result 2344 states and 2726 transitions. [2020-11-06 23:53:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-06 23:53:27,967 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-11-06 23:53:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:27,975 INFO L225 Difference]: With dead ends: 2344 [2020-11-06 23:53:27,975 INFO L226 Difference]: Without dead ends: 1367 [2020-11-06 23:53:27,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-11-06 23:53:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-11-06 23:53:28,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1091. [2020-11-06 23:53:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-11-06 23:53:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1211 transitions. [2020-11-06 23:53:28,498 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1211 transitions. Word has length 178 [2020-11-06 23:53:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:28,499 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1211 transitions. [2020-11-06 23:53:28,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:53:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1211 transitions. [2020-11-06 23:53:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-11-06 23:53:28,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:28,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:28,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:53:28,505 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 23:53:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:28,505 INFO L82 PathProgramCache]: Analyzing trace with hash -325423169, now seen corresponding path program 1 times [2020-11-06 23:53:28,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:28,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316076787] [2020-11-06 23:53:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:28,509 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:28,948 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:28,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:28,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:28,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:28,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-06 23:53:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-11-06 23:53:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-06 23:53:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:29,254 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 23:53:29,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316076787] [2020-11-06 23:53:29,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:29,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-06 23:53:29,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948986944] [2020-11-06 23:53:29,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 23:53:29,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:29,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 23:53:29,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-11-06 23:53:29,257 INFO L87 Difference]: Start difference. First operand 1091 states and 1211 transitions. Second operand 14 states. [2020-11-06 23:53:30,133 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:30,570 WARN L194 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:53:30,974 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:31,381 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:31,785 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:33,042 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:33,461 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:33,899 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:34,343 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:34,757 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:36,974 INFO L93 Difference]: Finished difference Result 2494 states and 2985 transitions. [2020-11-06 23:53:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:53:36,974 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2020-11-06 23:53:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:36,984 INFO L225 Difference]: With dead ends: 2494 [2020-11-06 23:53:36,984 INFO L226 Difference]: Without dead ends: 1523 [2020-11-06 23:53:36,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-11-06 23:53:36,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-11-06 23:53:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1115. [2020-11-06 23:53:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-11-06 23:53:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1235 transitions. [2020-11-06 23:53:37,539 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1235 transitions. Word has length 224 [2020-11-06 23:53:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:37,540 INFO L481 AbstractCegarLoop]: Abstraction has 1115 states and 1235 transitions. [2020-11-06 23:53:37,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 23:53:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1235 transitions. [2020-11-06 23:53:37,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-11-06 23:53:37,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:37,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:37,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:53:37,547 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 23:53:37,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:37,547 INFO L82 PathProgramCache]: Analyzing trace with hash -2009531361, now seen corresponding path program 1 times [2020-11-06 23:53:37,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:37,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250642123] [2020-11-06 23:53:37,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:37,551 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,919 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:37,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-06 23:53:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-11-06 23:53:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-06 23:53:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:38,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250642123] [2020-11-06 23:53:38,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:38,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:53:38,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806239434] [2020-11-06 23:53:38,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:53:38,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:38,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:53:38,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:53:38,156 INFO L87 Difference]: Start difference. First operand 1115 states and 1235 transitions. Second operand 11 states. [2020-11-06 23:53:39,867 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:40,268 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:53:40,686 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-11-06 23:53:41,078 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:41,497 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:41,888 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:43,524 INFO L93 Difference]: Finished difference Result 2538 states and 3025 transitions. [2020-11-06 23:53:43,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:53:43,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2020-11-06 23:53:43,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:43,534 INFO L225 Difference]: With dead ends: 2538 [2020-11-06 23:53:43,534 INFO L226 Difference]: Without dead ends: 1543 [2020-11-06 23:53:43,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-11-06 23:53:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-11-06 23:53:44,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1147. [2020-11-06 23:53:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-11-06 23:53:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1267 transitions. [2020-11-06 23:53:44,087 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1267 transitions. Word has length 224 [2020-11-06 23:53:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:44,088 INFO L481 AbstractCegarLoop]: Abstraction has 1147 states and 1267 transitions. [2020-11-06 23:53:44,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:53:44,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1267 transitions. [2020-11-06 23:53:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-11-06 23:53:44,093 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:44,093 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:44,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:53:44,094 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 23:53:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1914789154, now seen corresponding path program 1 times [2020-11-06 23:53:44,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:44,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096862848] [2020-11-06 23:53:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:44,098 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,599 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:44,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-06 23:53:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-11-06 23:53:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-06 23:53:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:44,854 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 23:53:44,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096862848] [2020-11-06 23:53:44,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:44,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 23:53:44,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464233790] [2020-11-06 23:53:44,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 23:53:44,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:44,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 23:53:44,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 23:53:44,856 INFO L87 Difference]: Start difference. First operand 1147 states and 1267 transitions. Second operand 8 states. [2020-11-06 23:53:45,579 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:46,387 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:50,352 INFO L93 Difference]: Finished difference Result 3767 states and 4576 transitions. [2020-11-06 23:53:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-06 23:53:50,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2020-11-06 23:53:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:50,370 INFO L225 Difference]: With dead ends: 3767 [2020-11-06 23:53:50,370 INFO L226 Difference]: Without dead ends: 2740 [2020-11-06 23:53:50,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-11-06 23:53:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2020-11-06 23:53:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2189. [2020-11-06 23:53:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2020-11-06 23:53:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2473 transitions. [2020-11-06 23:53:51,332 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2473 transitions. Word has length 224 [2020-11-06 23:53:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:51,332 INFO L481 AbstractCegarLoop]: Abstraction has 2189 states and 2473 transitions. [2020-11-06 23:53:51,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 23:53:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2473 transitions. [2020-11-06 23:53:51,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-11-06 23:53:51,339 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:51,340 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:51,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:53:51,340 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 23:53:51,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:51,341 INFO L82 PathProgramCache]: Analyzing trace with hash 915482243, now seen corresponding path program 1 times [2020-11-06 23:53:51,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:51,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186672350] [2020-11-06 23:53:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:51,344 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,735 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:51,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:53:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:53:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-06 23:53:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:52,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:52,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:52,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:52,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-06 23:53:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:52,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-11-06 23:53:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:52,261 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 23:53:52,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186672350] [2020-11-06 23:53:52,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:52,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-11-06 23:53:52,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757817295] [2020-11-06 23:53:52,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-06 23:53:52,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:52,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-06 23:53:52,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-11-06 23:53:52,265 INFO L87 Difference]: Start difference. First operand 2189 states and 2473 transitions. Second operand 21 states. [2020-11-06 23:53:53,061 WARN L194 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:53,636 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:54,077 WARN L194 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-06 23:53:54,476 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:54,883 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:53:55,271 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:56,433 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:57,582 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:58,042 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:53:58,678 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:59,151 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:01,149 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:01,684 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:02,163 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:02,600 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:03,099 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:03,603 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:04,045 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:04,483 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:05,348 WARN L194 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-06 23:54:06,280 WARN L194 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-11-06 23:54:07,045 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-06 23:54:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:54:09,735 INFO L93 Difference]: Finished difference Result 4715 states and 5529 transitions. [2020-11-06 23:54:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-11-06 23:54:09,742 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 229 [2020-11-06 23:54:09,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:54:09,758 INFO L225 Difference]: With dead ends: 4715 [2020-11-06 23:54:09,758 INFO L226 Difference]: Without dead ends: 2646 [2020-11-06 23:54:09,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=793, Invalid=3367, Unknown=0, NotChecked=0, Total=4160 [2020-11-06 23:54:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2020-11-06 23:54:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2115. [2020-11-06 23:54:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2115 states. [2020-11-06 23:54:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2359 transitions. [2020-11-06 23:54:10,619 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2359 transitions. Word has length 229 [2020-11-06 23:54:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:54:10,620 INFO L481 AbstractCegarLoop]: Abstraction has 2115 states and 2359 transitions. [2020-11-06 23:54:10,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-06 23:54:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2359 transitions. [2020-11-06 23:54:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-11-06 23:54:10,628 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:54:10,629 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:54:10,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-06 23:54:10,629 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 23:54:10,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:54:10,630 INFO L82 PathProgramCache]: Analyzing trace with hash -2141326574, now seen corresponding path program 1 times [2020-11-06 23:54:10,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:54:10,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915403501] [2020-11-06 23:54:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:54:11,031 WARN L194 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 87 [2020-11-06 23:54:11,177 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-11-06 23:54:11,911 WARN L194 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 179 [2020-11-06 23:54:12,573 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 179 [2020-11-06 23:54:13,267 WARN L194 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 179 [2020-11-06 23:54:13,935 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 178 [2020-11-06 23:54:14,587 WARN L194 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 178 [2020-11-06 23:54:15,285 WARN L194 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 178 [2020-11-06 23:54:16,005 WARN L194 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 179 [2020-11-06 23:54:16,673 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 178 [2020-11-06 23:54:16,677 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-06 23:54:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:54:17,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:54:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:54:17,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:54:17,589 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:54:17,589 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:54:17,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-06 23:54:17,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:54:17 BoogieIcfgContainer [2020-11-06 23:54:17,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:54:17,641 INFO L168 Benchmark]: Toolchain (without parser) took 87131.24 ms. Allocated memory was 154.1 MB in the beginning and 964.7 MB in the end (delta: 810.5 MB). Free memory was 130.0 MB in the beginning and 675.5 MB in the end (delta: -545.4 MB). Peak memory consumption was 266.7 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:17,644 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:54:17,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.95 ms. Allocated memory is still 154.1 MB. Free memory was 129.4 MB in the beginning and 108.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:17,647 INFO L168 Benchmark]: Boogie Preprocessor took 128.66 ms. Allocated memory is still 154.1 MB. Free memory was 108.0 MB in the beginning and 104.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:17,653 INFO L168 Benchmark]: RCFGBuilder took 1574.97 ms. Allocated memory was 154.1 MB in the beginning and 205.5 MB in the end (delta: 51.4 MB). Free memory was 104.0 MB in the beginning and 151.4 MB in the end (delta: -47.4 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:17,654 INFO L168 Benchmark]: TraceAbstraction took 84762.65 ms. Allocated memory was 205.5 MB in the beginning and 964.7 MB in the end (delta: 759.2 MB). Free memory was 151.4 MB in the beginning and 675.5 MB in the end (delta: -524.1 MB). Peak memory consumption was 235.6 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:17,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 644.95 ms. Allocated memory is still 154.1 MB. Free memory was 129.4 MB in the beginning and 108.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.66 ms. Allocated memory is still 154.1 MB. Free memory was 108.0 MB in the beginning and 104.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1574.97 ms. Allocated memory was 154.1 MB in the beginning and 205.5 MB in the end (delta: 51.4 MB). Free memory was 104.0 MB in the beginning and 151.4 MB in the end (delta: -47.4 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84762.65 ms. Allocated memory was 205.5 MB in the beginning and 964.7 MB in the end (delta: 759.2 MB). Free memory was 151.4 MB in the beginning and 675.5 MB in the end (delta: -524.1 MB). Peak memory consumption was 235.6 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L509] int cleanupTimeShifts = 4; [L650] int methAndRunningLastTime ; [L759] int pumpRunning = 0; [L760] int systemActive = 1; [L590] int retValue_acc ; [L591] int tmp ; [L595] FCALL select_helpers() [L596] FCALL select_features() [L597] CALL, EXPR valid_product() [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L597] RET, EXPR valid_product() [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) [L601] FCALL setup() [L602] CALL runTest() [L580] CALL __utac_acc__Specification2_spec__1() [L655] methAndRunningLastTime = 0 [L580] RET __utac_acc__Specification2_spec__1() [L581] CALL test() [L691] int splverifierCounter ; [L692] int tmp ; [L693] int tmp___0 ; [L694] int tmp___1 ; [L695] int tmp___2 ; [L698] splverifierCounter = 0 [L700] COND TRUE 1 [L702] COND TRUE splverifierCounter < 4 [L708] tmp = __VERIFIER_nondet_int() [L710] COND TRUE \read(tmp) [L712] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L712] RET waterRise() [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) [L745] CALL timeShift() [L766] COND FALSE !(\read(pumpRunning)) [L773] COND TRUE \read(systemActive) [L775] CALL processEnvironment() [L795] int tmp ; [L798] COND TRUE ! pumpRunning [L800] CALL, EXPR isHighWaterLevel() [L910] int retValue_acc ; [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR isHighWaterSensorDry() [L129] int retValue_acc ; [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); [L916] RET, EXPR isHighWaterSensorDry() [L916] tmp = isHighWaterSensorDry() [L918] COND FALSE !(\read(tmp)) [L921] tmp___0 = 1 [L923] retValue_acc = tmp___0 [L924] return (retValue_acc); [L800] RET, EXPR isHighWaterLevel() [L800] tmp = isHighWaterLevel() [L802] COND TRUE \read(tmp) [L804] CALL activatePump() [L829] int tmp ; [L833] CALL, EXPR isMethaneAlarm() [L854] int retValue_acc ; [L858] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L858] RET, EXPR isMethaneLevelCritical() [L858] retValue_acc = isMethaneLevelCritical() [L860] return (retValue_acc); [L833] RET, EXPR isMethaneAlarm() [L833] tmp = isMethaneAlarm() [L835] COND FALSE !(\read(tmp)) [L839] CALL activatePump__wrappee__highWaterSensor() [L823] pumpRunning = 1 [L839] RET activatePump__wrappee__highWaterSensor() [L804] RET activatePump() [L775] RET processEnvironment() [L781] CALL __utac_acc__Specification2_spec__2() [L660] int tmp ; [L661] int tmp___0 ; [L665] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L683] methAndRunningLastTime = 0 [L781] RET __utac_acc__Specification2_spec__2() [L745] RET timeShift() [L700] COND TRUE 1 [L702] COND TRUE splverifierCounter < 4 [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp___0) [L722] CALL changeMethaneLevel() [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 [L722] RET changeMethaneLevel() [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) [L745] CALL timeShift() [L766] COND TRUE \read(pumpRunning) [L768] CALL lowerWaterLevel() [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 [L768] RET lowerWaterLevel() [L773] COND TRUE \read(systemActive) [L775] CALL processEnvironment() [L795] int tmp ; [L798] COND FALSE !(! pumpRunning) [L813] FCALL processEnvironment__wrappee__base() [L775] RET processEnvironment() [L781] CALL __utac_acc__Specification2_spec__2() [L660] int tmp ; [L661] int tmp___0 ; [L665] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND TRUE \read(tmp) [L669] CALL, EXPR isPumpRunning() [L865] int retValue_acc ; [L868] retValue_acc = pumpRunning [L869] return (retValue_acc); [L669] RET, EXPR isPumpRunning() [L669] tmp___0 = isPumpRunning() [L671] COND TRUE \read(tmp___0) [L672] COND TRUE \read(methAndRunningLastTime) [L674] CALL __automaton_fail() [L948] CALL reach_error() [L3] __assert_fail("0", "minepump_spec2_product43.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 84.6s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 65.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2615 SDtfs, 7264 SDslu, 6222 SDs, 0 SdLazy, 13210 SolverSat, 2138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 516 GetRequests, 291 SyntacticMatches, 4 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1690 ImplicationChecksByTransitivity, 32.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2189occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 2629 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...