/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_spec3_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:54,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:54,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:54,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:54,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:54,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:54,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:54,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:54,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:54,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:54,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:54,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:54,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:54,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:54,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:54,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:54,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:54,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:54,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:54,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:54,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:54,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:54,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:54,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:54,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:54,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:54,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:54,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:54,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:54,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:54,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:54,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:54,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:54,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:54,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:54,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:54,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:54,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:54,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:54,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:54,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:54,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:57:54,740 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:54,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:54,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:54,748 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:54,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:54,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:54,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:54,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:54,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:54,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:54,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:54,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:54,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:54,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:54,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:54,752 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:54,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:54,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:54,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:54,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:54,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:54,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:54,754 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:55,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:55,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:55,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:55,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:55,216 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:55,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-10-23 19:57:55,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8af6bd3d/ed1369a64e674e1c8ade20df9ea515cb/FLAG0ae297fee [2020-10-23 19:57:56,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:56,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-10-23 19:57:56,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8af6bd3d/ed1369a64e674e1c8ade20df9ea515cb/FLAG0ae297fee [2020-10-23 19:57:56,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8af6bd3d/ed1369a64e674e1c8ade20df9ea515cb [2020-10-23 19:57:56,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:56,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:56,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:56,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:56,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:56,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:56" (1/1) ... [2020-10-23 19:57:56,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce625ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:56, skipping insertion in model container [2020-10-23 19:57:56,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:56" (1/1) ... [2020-10-23 19:57:56,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:56,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:56,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:56,763 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:56,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:57,006 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:57,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57 WrapperNode [2020-10-23 19:57:57,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:57,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:57,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:57,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:57,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... [2020-10-23 19:57:57,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:57,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:57,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:57,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:57,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:57:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 19:57:57,279 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:57,279 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:57,279 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:57,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:57,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:57:57,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:57:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:57:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:57:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:57:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:57:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:57:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:57:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 19:57:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:58,509 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:58,510 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:58,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:58 BoogieIcfgContainer [2020-10-23 19:57:58,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:58,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:58,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:58,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:58,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:56" (1/3) ... [2020-10-23 19:57:58,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce301bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:58, skipping insertion in model container [2020-10-23 19:57:58,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:57" (2/3) ... [2020-10-23 19:57:58,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce301bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:58, skipping insertion in model container [2020-10-23 19:57:58,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:58" (3/3) ... [2020-10-23 19:57:58,522 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2020-10-23 19:57:58,535 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:58,541 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:58,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:58,583 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:58,583 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:58,583 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:58,583 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:58,583 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:58,583 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:58,584 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:58,584 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-10-23 19:57:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:58,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:58,634 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] [2020-10-23 19:57:58,635 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:57:58,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:58,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2104712104, now seen corresponding path program 1 times [2020-10-23 19:57:58,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:58,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511624839] [2020-10-23 19:57:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:58,752 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,428 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:59,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:59,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511624839] [2020-10-23 19:57:59,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:59,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:59,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331236222] [2020-10-23 19:57:59,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:59,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:59,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:59,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:59,682 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 3 states. [2020-10-23 19:58:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:01,640 INFO L93 Difference]: Finished difference Result 563 states and 668 transitions. [2020-10-23 19:58:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:58:01,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:58:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:01,660 INFO L225 Difference]: With dead ends: 563 [2020-10-23 19:58:01,660 INFO L226 Difference]: Without dead ends: 341 [2020-10-23 19:58:01,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-10-23 19:58:01,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 298. [2020-10-23 19:58:01,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-23 19:58:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 326 transitions. [2020-10-23 19:58:01,900 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 326 transitions. Word has length 159 [2020-10-23 19:58:01,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:01,904 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 326 transitions. [2020-10-23 19:58:01,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:58:01,904 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 326 transitions. [2020-10-23 19:58:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:58:01,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:01,917 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] [2020-10-23 19:58:01,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:58:01,921 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash -85885323, now seen corresponding path program 1 times [2020-10-23 19:58:01,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:01,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676285147] [2020-10-23 19:58:01,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:01,928 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,455 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:02,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:58:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:58:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:02,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676285147] [2020-10-23 19:58:02,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:02,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:58:02,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717445681] [2020-10-23 19:58:02,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:58:02,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:02,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:58:02,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:58:02,582 INFO L87 Difference]: Start difference. First operand 298 states and 326 transitions. Second operand 4 states. [2020-10-23 19:58:03,399 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:04,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:04,874 INFO L93 Difference]: Finished difference Result 477 states and 539 transitions. [2020-10-23 19:58:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:58:04,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:58:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:04,884 INFO L225 Difference]: With dead ends: 477 [2020-10-23 19:58:04,884 INFO L226 Difference]: Without dead ends: 324 [2020-10-23 19:58:04,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:58:04,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-23 19:58:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 288. [2020-10-23 19:58:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-23 19:58:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 313 transitions. [2020-10-23 19:58:05,007 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 313 transitions. Word has length 160 [2020-10-23 19:58:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:05,008 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 313 transitions. [2020-10-23 19:58:05,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:58:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 313 transitions. [2020-10-23 19:58:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:58:05,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:05,011 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] [2020-10-23 19:58:05,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:58:05,011 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:05,012 INFO L82 PathProgramCache]: Analyzing trace with hash 921616627, now seen corresponding path program 1 times [2020-10-23 19:58:05,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:05,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456508453] [2020-10-23 19:58:05,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:05,016 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,458 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:05,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:58:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:58:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:05,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456508453] [2020-10-23 19:58:05,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:05,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:05,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446542621] [2020-10-23 19:58:05,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:05,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:05,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:05,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:05,672 INFO L87 Difference]: Start difference. First operand 288 states and 313 transitions. Second operand 9 states. [2020-10-23 19:58:06,407 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:06,874 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:07,306 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:07,733 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:08,135 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:08,519 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:10,739 INFO L93 Difference]: Finished difference Result 497 states and 564 transitions. [2020-10-23 19:58:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:58:10,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:58:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:10,745 INFO L225 Difference]: With dead ends: 497 [2020-10-23 19:58:10,745 INFO L226 Difference]: Without dead ends: 324 [2020-10-23 19:58:10,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:58:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-23 19:58:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 288. [2020-10-23 19:58:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-23 19:58:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 312 transitions. [2020-10-23 19:58:10,888 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 312 transitions. Word has length 169 [2020-10-23 19:58:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:10,889 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 312 transitions. [2020-10-23 19:58:10,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 312 transitions. [2020-10-23 19:58:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-23 19:58:10,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:10,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:10,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:58:10,893 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:10,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1570992056, now seen corresponding path program 1 times [2020-10-23 19:58:10,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:10,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114473730] [2020-10-23 19:58:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:10,898 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,334 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:11,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:58:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:58:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:58:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-23 19:58:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:11,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114473730] [2020-10-23 19:58:11,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:11,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:58:11,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650189782] [2020-10-23 19:58:11,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:58:11,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:11,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:58:11,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:58:11,519 INFO L87 Difference]: Start difference. First operand 288 states and 312 transitions. Second operand 6 states. [2020-10-23 19:58:12,198 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:14,178 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:15,450 INFO L93 Difference]: Finished difference Result 658 states and 752 transitions. [2020-10-23 19:58:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:58:15,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-10-23 19:58:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:15,457 INFO L225 Difference]: With dead ends: 658 [2020-10-23 19:58:15,457 INFO L226 Difference]: Without dead ends: 485 [2020-10-23 19:58:15,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:58:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-10-23 19:58:15,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 424. [2020-10-23 19:58:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-23 19:58:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 457 transitions. [2020-10-23 19:58:15,660 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 457 transitions. Word has length 187 [2020-10-23 19:58:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:15,660 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 457 transitions. [2020-10-23 19:58:15,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:58:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 457 transitions. [2020-10-23 19:58:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 19:58:15,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:15,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:15,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:58:15,666 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:15,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:15,668 INFO L82 PathProgramCache]: Analyzing trace with hash 240940204, now seen corresponding path program 1 times [2020-10-23 19:58:15,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:15,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653250248] [2020-10-23 19:58:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:15,675 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,136 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:58:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:58:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:58:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 19:58:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 19:58:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-23 19:58:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:16,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653250248] [2020-10-23 19:58:16,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:16,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:16,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146128916] [2020-10-23 19:58:16,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:16,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:16,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:16,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:16,382 INFO L87 Difference]: Start difference. First operand 424 states and 457 transitions. Second operand 9 states. [2020-10-23 19:58:17,070 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:19,398 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:19,823 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:20,269 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:20,717 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:21,110 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:21,521 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:21,906 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:23,312 INFO L93 Difference]: Finished difference Result 982 states and 1129 transitions. [2020-10-23 19:58:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:58:23,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 211 [2020-10-23 19:58:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:23,317 INFO L225 Difference]: With dead ends: 982 [2020-10-23 19:58:23,317 INFO L226 Difference]: Without dead ends: 673 [2020-10-23 19:58:23,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:58:23,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2020-10-23 19:58:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 603. [2020-10-23 19:58:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-23 19:58:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 661 transitions. [2020-10-23 19:58:23,601 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 661 transitions. Word has length 211 [2020-10-23 19:58:23,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:23,601 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 661 transitions. [2020-10-23 19:58:23,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:23,601 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 661 transitions. [2020-10-23 19:58:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 19:58:23,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:23,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:23,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:58:23,616 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:23,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:23,617 INFO L82 PathProgramCache]: Analyzing trace with hash 864704686, now seen corresponding path program 1 times [2020-10-23 19:58:23,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:23,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418904281] [2020-10-23 19:58:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:23,622 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,065 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:24,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:58:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:58:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:58:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:58:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:58:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-23 19:58:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:24,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418904281] [2020-10-23 19:58:24,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:24,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:58:24,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033541278] [2020-10-23 19:58:24,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:58:24,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:24,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:58:24,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:58:24,284 INFO L87 Difference]: Start difference. First operand 603 states and 661 transitions. Second operand 11 states. [2020-10-23 19:58:24,915 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:27,441 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:27,849 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:28,262 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:28,652 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:29,023 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:58:29,413 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:29,775 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:30,272 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:32,145 INFO L93 Difference]: Finished difference Result 1291 states and 1509 transitions. [2020-10-23 19:58:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:58:32,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 216 [2020-10-23 19:58:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:32,155 INFO L225 Difference]: With dead ends: 1291 [2020-10-23 19:58:32,156 INFO L226 Difference]: Without dead ends: 971 [2020-10-23 19:58:32,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:58:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-10-23 19:58:32,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 867. [2020-10-23 19:58:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-23 19:58:32,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 966 transitions. [2020-10-23 19:58:32,565 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 966 transitions. Word has length 216 [2020-10-23 19:58:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:32,565 INFO L481 AbstractCegarLoop]: Abstraction has 867 states and 966 transitions. [2020-10-23 19:58:32,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:58:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 966 transitions. [2020-10-23 19:58:32,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 19:58:32,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:32,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:32,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:58:32,573 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]=== [2020-10-23 19:58:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:32,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1175928811, now seen corresponding path program 1 times [2020-10-23 19:58:32,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:32,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779032736] [2020-10-23 19:58:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:32,579 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:32,972 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:32,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:58:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:58:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:58:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:58:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:58:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-23 19:58:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:33,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779032736] [2020-10-23 19:58:33,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:33,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:33,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275933155] [2020-10-23 19:58:33,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:33,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:33,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:33,229 INFO L87 Difference]: Start difference. First operand 867 states and 966 transitions. Second operand 9 states. [2020-10-23 19:58:34,622 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:35,013 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:35,404 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:35,792 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:36,224 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:38,288 INFO L93 Difference]: Finished difference Result 1548 states and 1777 transitions. [2020-10-23 19:58:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 19:58:38,289 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 216 [2020-10-23 19:58:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:38,295 INFO L225 Difference]: With dead ends: 1548 [2020-10-23 19:58:38,295 INFO L226 Difference]: Without dead ends: 960 [2020-10-23 19:58:38,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:58:38,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-10-23 19:58:38,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 866. [2020-10-23 19:58:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-10-23 19:58:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 964 transitions. [2020-10-23 19:58:38,601 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 964 transitions. Word has length 216 [2020-10-23 19:58:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:38,602 INFO L481 AbstractCegarLoop]: Abstraction has 866 states and 964 transitions. [2020-10-23 19:58:38,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 964 transitions. [2020-10-23 19:58:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 19:58:38,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:38,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:38,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:58:38,608 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]=== [2020-10-23 19:58:38,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:38,608 INFO L82 PathProgramCache]: Analyzing trace with hash -977848245, now seen corresponding path program 1 times [2020-10-23 19:58:38,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:38,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25163914] [2020-10-23 19:58:38,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:38,611 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,065 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:39,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:58:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:58:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:58:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:58:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:58:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-23 19:58:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:39,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25163914] [2020-10-23 19:58:39,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:39,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:58:39,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520361256] [2020-10-23 19:58:39,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:58:39,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:39,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:58:39,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:58:39,323 INFO L87 Difference]: Start difference. First operand 866 states and 964 transitions. Second operand 14 states. [2020-10-23 19:58:40,071 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:40,448 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:40,828 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:41,196 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:41,548 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:42,789 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:43,163 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:43,566 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:44,000 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:44,427 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:44,821 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:47,173 INFO L93 Difference]: Finished difference Result 1706 states and 1964 transitions. [2020-10-23 19:58:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 19:58:47,174 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 216 [2020-10-23 19:58:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:47,180 INFO L225 Difference]: With dead ends: 1706 [2020-10-23 19:58:47,180 INFO L226 Difference]: Without dead ends: 955 [2020-10-23 19:58:47,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2020-10-23 19:58:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-23 19:58:47,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 870. [2020-10-23 19:58:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2020-10-23 19:58:47,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 966 transitions. [2020-10-23 19:58:47,562 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 966 transitions. Word has length 216 [2020-10-23 19:58:47,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:47,562 INFO L481 AbstractCegarLoop]: Abstraction has 870 states and 966 transitions. [2020-10-23 19:58:47,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:58:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 966 transitions. [2020-10-23 19:58:47,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-23 19:58:47,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:47,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:47,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:58:47,567 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]=== [2020-10-23 19:58:47,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:47,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1399859855, now seen corresponding path program 1 times [2020-10-23 19:58:47,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:47,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795049441] [2020-10-23 19:58:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:47,573 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,032 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:48,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:58:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:58:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:58:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:58:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-23 19:58:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 19:58:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 19:58:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:48,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795049441] [2020-10-23 19:58:48,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:48,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 19:58:48,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806222353] [2020-10-23 19:58:48,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 19:58:48,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:48,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 19:58:48,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:58:48,293 INFO L87 Difference]: Start difference. First operand 870 states and 966 transitions. Second operand 15 states. [2020-10-23 19:58:49,073 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:49,479 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:49,873 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:50,270 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:50,655 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:52,451 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:53,727 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:54,173 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:54,636 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:55,074 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:58:55,501 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:56,816 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:57,224 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:57,669 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:58,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:58,106 INFO L93 Difference]: Finished difference Result 1689 states and 1906 transitions. [2020-10-23 19:58:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 19:58:58,107 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 217 [2020-10-23 19:58:58,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:58,114 INFO L225 Difference]: With dead ends: 1689 [2020-10-23 19:58:58,114 INFO L226 Difference]: Without dead ends: 934 [2020-10-23 19:58:58,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=203, Invalid=853, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 19:58:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-23 19:58:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 870. [2020-10-23 19:58:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2020-10-23 19:58:58,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 954 transitions. [2020-10-23 19:58:58,578 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 954 transitions. Word has length 217 [2020-10-23 19:58:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:58,579 INFO L481 AbstractCegarLoop]: Abstraction has 870 states and 954 transitions. [2020-10-23 19:58:58,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 19:58:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 954 transitions. [2020-10-23 19:58:58,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-23 19:58:58,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:58,584 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, 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] [2020-10-23 19:58:58,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:58:58,584 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]=== [2020-10-23 19:58:58,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:58,585 INFO L82 PathProgramCache]: Analyzing trace with hash -2042925109, now seen corresponding path program 1 times [2020-10-23 19:58:58,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:58,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179301977] [2020-10-23 19:58:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:58,601 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 19:58:58,607 INFO L168 Benchmark]: Toolchain (without parser) took 62252.31 ms. Allocated memory was 157.3 MB in the beginning and 679.5 MB in the end (delta: 522.2 MB). Free memory was 114.7 MB in the beginning and 423.7 MB in the end (delta: -309.0 MB). Peak memory consumption was 214.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:58,607 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 157.3 MB. Free memory is still 133.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:58:58,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.33 ms. Allocated memory is still 157.3 MB. Free memory was 114.1 MB in the beginning and 133.8 MB in the end (delta: -19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:58,608 INFO L168 Benchmark]: Boogie Preprocessor took 168.61 ms. Allocated memory is still 157.3 MB. Free memory was 133.5 MB in the beginning and 129.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:58,609 INFO L168 Benchmark]: RCFGBuilder took 1332.45 ms. Allocated memory is still 157.3 MB. Free memory was 129.5 MB in the beginning and 77.7 MB in the end (delta: 51.8 MB). Peak memory consumption was 53.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:58,610 INFO L168 Benchmark]: TraceAbstraction took 60090.33 ms. Allocated memory was 157.3 MB in the beginning and 679.5 MB in the end (delta: 522.2 MB). Free memory was 77.2 MB in the beginning and 423.7 MB in the end (delta: -346.6 MB). Peak memory consumption was 175.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:58,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 157.3 MB. Free memory is still 133.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 646.33 ms. Allocated memory is still 157.3 MB. Free memory was 114.1 MB in the beginning and 133.8 MB in the end (delta: -19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 168.61 ms. Allocated memory is still 157.3 MB. Free memory was 133.5 MB in the beginning and 129.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1332.45 ms. Allocated memory is still 157.3 MB. Free memory was 129.5 MB in the beginning and 77.7 MB in the end (delta: 51.8 MB). Peak memory consumption was 53.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60090.33 ms. Allocated memory was 157.3 MB in the beginning and 679.5 MB in the end (delta: 522.2 MB). Free memory was 77.2 MB in the beginning and 423.7 MB in the end (delta: -346.6 MB). Peak memory consumption was 175.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...