/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:53:23,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:53:23,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:53:23,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:53:23,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:53:23,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:53:23,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:53:23,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:53:23,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:53:23,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:53:23,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:53:23,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:53:23,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:53:23,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:53:23,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:53:23,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:53:23,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:53:23,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:53:23,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:53:23,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:53:23,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:53:23,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:53:23,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:53:23,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:53:23,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:53:23,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:53:23,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:53:23,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:53:23,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:53:23,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:53:23,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:53:23,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:53:23,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:53:23,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:53:23,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:53:23,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:53:23,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:53:23,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:53:23,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:53:23,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:53:23,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:53:23,502 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 19:53:23,523 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:53:23,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:53:23,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:53:23,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:53:23,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:53:23,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:53:23,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:53:23,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:53:23,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:53:23,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:53:23,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:53:23,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:53:23,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:53:23,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:53:23,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:53:23,532 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:53:23,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:53:23,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:53:23,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:53:23,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:53:23,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:53:23,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:53:23,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:53:23,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:53:24,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:53:24,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:53:24,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:53:24,012 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:53:24,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-10-23 19:53:24,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4126719e/ff56eff6397f48a491a3082af79803d4/FLAG74e8f3b43 [2020-10-23 19:53:24,877 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:53:24,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-10-23 19:53:24,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4126719e/ff56eff6397f48a491a3082af79803d4/FLAG74e8f3b43 [2020-10-23 19:53:25,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4126719e/ff56eff6397f48a491a3082af79803d4 [2020-10-23 19:53:25,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:53:25,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:53:25,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:25,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:53:25,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:53:25,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a525dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25, skipping insertion in model container [2020-10-23 19:53:25,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:53:25,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:53:25,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:25,624 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:53:25,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:25,806 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:53:25,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25 WrapperNode [2020-10-23 19:53:25,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:25,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:53:25,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:53:25,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:53:25,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (1/1) ... [2020-10-23 19:53:25,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:53:25,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:53:25,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:53:25,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:53:25,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (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 19:53:26,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:53:26,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:53:26,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:26,004 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:53:26,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:53:26,005 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:53:26,005 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:53:26,005 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:53:26,006 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:53:26,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:53:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:53:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:53:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:53:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:53:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:53:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:53:26,009 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:53:26,009 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:53:26,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:53:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:53:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:53:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:53:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:53:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:53:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:53:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:53:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:53:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:53:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:53:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:53:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:53:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:53:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:53:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:53:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:53:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:53:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:53:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:53:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:53:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:53:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:53:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:53:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:53:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:53:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:53:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:53:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:53:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:53:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:53:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:53:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:53:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:53:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:53:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:53:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:53:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:53:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:53:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:53:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:53:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:53:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:53:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:53:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:53:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:53:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:53:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:53:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:53:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:53:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:53:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:53:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:53:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:53:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:53:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:53:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:53:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:53:27,433 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:53:27,434 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:53:27,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:27 BoogieIcfgContainer [2020-10-23 19:53:27,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:53:27,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:53:27,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:53:27,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:53:27,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:53:25" (1/3) ... [2020-10-23 19:53:27,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b338b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:27, skipping insertion in model container [2020-10-23 19:53:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:25" (2/3) ... [2020-10-23 19:53:27,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b338b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:27, skipping insertion in model container [2020-10-23 19:53:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:27" (3/3) ... [2020-10-23 19:53:27,446 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-10-23 19:53:27,458 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:53:27,464 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:53:27,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:53:27,501 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:53:27,501 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:53:27,501 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:53:27,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:53:27,502 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:53:27,502 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:53:27,502 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:53:27,502 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:53:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2020-10-23 19:53:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:53:27,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:27,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:27,547 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 19:53:27,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:27,553 INFO L82 PathProgramCache]: Analyzing trace with hash -327662032, now seen corresponding path program 1 times [2020-10-23 19:53:27,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:27,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179077086] [2020-10-23 19:53:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:27,640 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,455 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:28,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:53:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:28,616 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 19:53:28,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179077086] [2020-10-23 19:53:28,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:28,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:53:28,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469546524] [2020-10-23 19:53:28,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:53:28,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:28,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:53:28,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:28,643 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 4 states. [2020-10-23 19:53:30,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:30,517 INFO L93 Difference]: Finished difference Result 509 states and 600 transitions. [2020-10-23 19:53:30,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:53:30,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:53:30,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:30,536 INFO L225 Difference]: With dead ends: 509 [2020-10-23 19:53:30,537 INFO L226 Difference]: Without dead ends: 324 [2020-10-23 19:53:30,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:30,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-23 19:53:30,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 272. [2020-10-23 19:53:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-23 19:53:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 294 transitions. [2020-10-23 19:53:30,708 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 294 transitions. Word has length 154 [2020-10-23 19:53:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:30,710 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 294 transitions. [2020-10-23 19:53:30,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:53:30,710 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 294 transitions. [2020-10-23 19:53:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:53:30,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:30,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:30,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:53:30,716 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 19:53:30,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:30,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1699355746, now seen corresponding path program 1 times [2020-10-23 19:53:30,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:30,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979965763] [2020-10-23 19:53:30,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:30,721 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,179 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:53:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:53:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:31,281 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 19:53:31,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979965763] [2020-10-23 19:53:31,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:31,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:53:31,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924512513] [2020-10-23 19:53:31,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:53:31,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:31,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:53:31,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:53:31,284 INFO L87 Difference]: Start difference. First operand 272 states and 294 transitions. Second operand 5 states. [2020-10-23 19:53:32,152 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:33,578 INFO L93 Difference]: Finished difference Result 422 states and 477 transitions. [2020-10-23 19:53:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:53:33,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:53:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:33,590 INFO L225 Difference]: With dead ends: 422 [2020-10-23 19:53:33,590 INFO L226 Difference]: Without dead ends: 313 [2020-10-23 19:53:33,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:53:33,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-23 19:53:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 262. [2020-10-23 19:53:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-23 19:53:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 281 transitions. [2020-10-23 19:53:33,741 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 281 transitions. Word has length 155 [2020-10-23 19:53:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:33,742 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 281 transitions. [2020-10-23 19:53:33,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:53:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 281 transitions. [2020-10-23 19:53:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-23 19:53:33,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:33,746 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] [2020-10-23 19:53:33,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:53:33,746 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 19:53:33,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:33,747 INFO L82 PathProgramCache]: Analyzing trace with hash -475783445, now seen corresponding path program 1 times [2020-10-23 19:53:33,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:33,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807663163] [2020-10-23 19:53:33,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:33,751 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,230 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:34,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:53:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:53:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:53:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:34,460 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 19:53:34,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807663163] [2020-10-23 19:53:34,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:34,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:53:34,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238498073] [2020-10-23 19:53:34,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:53:34,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:34,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:53:34,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:53:34,475 INFO L87 Difference]: Start difference. First operand 262 states and 281 transitions. Second operand 11 states. [2020-10-23 19:53:35,268 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:35,748 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:36,154 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:53:36,595 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:37,001 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:37,393 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:38,644 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:41,766 INFO L93 Difference]: Finished difference Result 718 states and 838 transitions. [2020-10-23 19:53:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 19:53:41,767 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 168 [2020-10-23 19:53:41,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:41,773 INFO L225 Difference]: With dead ends: 718 [2020-10-23 19:53:41,773 INFO L226 Difference]: Without dead ends: 576 [2020-10-23 19:53:41,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:53:41,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-10-23 19:53:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 455. [2020-10-23 19:53:42,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-10-23 19:53:42,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 504 transitions. [2020-10-23 19:53:42,022 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 504 transitions. Word has length 168 [2020-10-23 19:53:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:42,023 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 504 transitions. [2020-10-23 19:53:42,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:53:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 504 transitions. [2020-10-23 19:53:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:53:42,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:42,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:42,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:53:42,028 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 19:53:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:42,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1225462967, now seen corresponding path program 1 times [2020-10-23 19:53:42,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:42,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077777341] [2020-10-23 19:53:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:42,033 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,468 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:42,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 19:53:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:53:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:53:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:42,684 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 19:53:42,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077777341] [2020-10-23 19:53:42,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:42,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:53:42,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477093833] [2020-10-23 19:53:42,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:53:42,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:42,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:53:42,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:53:42,688 INFO L87 Difference]: Start difference. First operand 455 states and 504 transitions. Second operand 10 states. [2020-10-23 19:53:43,333 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:45,114 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:45,545 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:46,028 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:46,434 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:46,812 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:47,198 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:47,583 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:48,153 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:49,686 INFO L93 Difference]: Finished difference Result 1252 states and 1506 transitions. [2020-10-23 19:53:49,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:53:49,690 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:53:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:49,701 INFO L225 Difference]: With dead ends: 1252 [2020-10-23 19:53:49,702 INFO L226 Difference]: Without dead ends: 917 [2020-10-23 19:53:49,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:53:49,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-10-23 19:53:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 741. [2020-10-23 19:53:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-23 19:53:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 831 transitions. [2020-10-23 19:53:50,046 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 831 transitions. Word has length 173 [2020-10-23 19:53:50,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:50,046 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 831 transitions. [2020-10-23 19:53:50,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:53:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 831 transitions. [2020-10-23 19:53:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:53:50,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:50,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:50,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:53:50,050 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 19:53:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:50,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1005893592, now seen corresponding path program 1 times [2020-10-23 19:53:50,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:50,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983846315] [2020-10-23 19:53:50,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:50,054 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,485 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:53:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:53:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:53:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,704 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 19:53:50,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983846315] [2020-10-23 19:53:50,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:50,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:53:50,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287768095] [2020-10-23 19:53:50,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:53:50,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:50,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:53:50,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:53:50,712 INFO L87 Difference]: Start difference. First operand 741 states and 831 transitions. Second operand 11 states. [2020-10-23 19:53:51,397 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:53,154 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:53,528 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:53,971 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:54,401 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:54,841 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:55,944 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:56,321 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:56,760 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:58,341 INFO L93 Difference]: Finished difference Result 1924 states and 2354 transitions. [2020-10-23 19:53:58,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 19:53:58,342 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-10-23 19:53:58,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:58,352 INFO L225 Difference]: With dead ends: 1924 [2020-10-23 19:53:58,352 INFO L226 Difference]: Without dead ends: 1303 [2020-10-23 19:53:58,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 19:53:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2020-10-23 19:53:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1015. [2020-10-23 19:53:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-10-23 19:53:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1145 transitions. [2020-10-23 19:53:58,755 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1145 transitions. Word has length 178 [2020-10-23 19:53:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:58,756 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states and 1145 transitions. [2020-10-23 19:53:58,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:53:58,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1145 transitions. [2020-10-23 19:53:58,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-23 19:53:58,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:58,762 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:58,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:53:58,763 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 19:53:58,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:58,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1578263461, now seen corresponding path program 1 times [2020-10-23 19:53:58,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:58,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351203892] [2020-10-23 19:53:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:58,768 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,126 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:59,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:53:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:53:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:53:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:53:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:53:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:53:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:53:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 19:53:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-23 19:53:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:59,375 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 19:53:59,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351203892] [2020-10-23 19:53:59,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:59,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 19:53:59,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821826344] [2020-10-23 19:53:59,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 19:53:59,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:59,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 19:53:59,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-23 19:53:59,378 INFO L87 Difference]: Start difference. First operand 1015 states and 1145 transitions. Second operand 12 states. [2020-10-23 19:54:01,275 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:01,689 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:02,102 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:54:02,521 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:02,973 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:03,402 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:06,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:06,126 INFO L93 Difference]: Finished difference Result 2565 states and 3250 transitions. [2020-10-23 19:54:06,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 19:54:06,127 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 228 [2020-10-23 19:54:06,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:06,138 INFO L225 Difference]: With dead ends: 2565 [2020-10-23 19:54:06,139 INFO L226 Difference]: Without dead ends: 1670 [2020-10-23 19:54:06,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:54:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2020-10-23 19:54:06,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1053. [2020-10-23 19:54:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-10-23 19:54:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1183 transitions. [2020-10-23 19:54:06,537 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1183 transitions. Word has length 228 [2020-10-23 19:54:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:06,538 INFO L481 AbstractCegarLoop]: Abstraction has 1053 states and 1183 transitions. [2020-10-23 19:54:06,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 19:54:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1183 transitions. [2020-10-23 19:54:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-23 19:54:06,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:06,544 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:06,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:54:06,544 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 19:54:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1032595643, now seen corresponding path program 1 times [2020-10-23 19:54:06,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:06,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836229799] [2020-10-23 19:54:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:06,549 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:06,942 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:06,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:54:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:54:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 19:54:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-23 19:54:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,276 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 19:54:07,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836229799] [2020-10-23 19:54:07,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:07,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 19:54:07,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766589948] [2020-10-23 19:54:07,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 19:54:07,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:07,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 19:54:07,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:54:07,278 INFO L87 Difference]: Start difference. First operand 1053 states and 1183 transitions. Second operand 15 states. [2020-10-23 19:54:08,094 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:08,481 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:08,860 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:09,249 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:09,612 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:10,962 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:11,363 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:11,776 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:12,232 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:12,609 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:15,653 INFO L93 Difference]: Finished difference Result 2639 states and 3320 transitions. [2020-10-23 19:54:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 19:54:15,654 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 228 [2020-10-23 19:54:15,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:15,665 INFO L225 Difference]: With dead ends: 2639 [2020-10-23 19:54:15,665 INFO L226 Difference]: Without dead ends: 1706 [2020-10-23 19:54:15,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2020-10-23 19:54:15,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-10-23 19:54:16,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1077. [2020-10-23 19:54:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-10-23 19:54:16,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1207 transitions. [2020-10-23 19:54:16,186 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1207 transitions. Word has length 228 [2020-10-23 19:54:16,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:16,187 INFO L481 AbstractCegarLoop]: Abstraction has 1077 states and 1207 transitions. [2020-10-23 19:54:16,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 19:54:16,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1207 transitions. [2020-10-23 19:54:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-23 19:54:16,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:16,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:16,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:54:16,191 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 19:54:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:16,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1207616680, now seen corresponding path program 1 times [2020-10-23 19:54:16,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:16,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137849530] [2020-10-23 19:54:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:16,196 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,601 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:54:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:54:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 19:54:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-23 19:54:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:16,936 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 19:54:16,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137849530] [2020-10-23 19:54:16,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:16,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:54:16,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353308036] [2020-10-23 19:54:16,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:54:16,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:16,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:54:16,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:54:16,939 INFO L87 Difference]: Start difference. First operand 1077 states and 1207 transitions. Second operand 9 states. [2020-10-23 19:54:17,672 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:18,503 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:24,350 INFO L93 Difference]: Finished difference Result 4175 states and 5309 transitions. [2020-10-23 19:54:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-23 19:54:24,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 228 [2020-10-23 19:54:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:24,371 INFO L225 Difference]: With dead ends: 4175 [2020-10-23 19:54:24,371 INFO L226 Difference]: Without dead ends: 3218 [2020-10-23 19:54:24,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=306, Invalid=1176, Unknown=0, NotChecked=0, Total=1482 [2020-10-23 19:54:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2020-10-23 19:54:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 2229. [2020-10-23 19:54:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2229 states. [2020-10-23 19:54:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2533 transitions. [2020-10-23 19:54:25,391 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2533 transitions. Word has length 228 [2020-10-23 19:54:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:25,392 INFO L481 AbstractCegarLoop]: Abstraction has 2229 states and 2533 transitions. [2020-10-23 19:54:25,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:54:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2533 transitions. [2020-10-23 19:54:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-23 19:54:25,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:25,398 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:25,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:54:25,398 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 19:54:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:25,399 INFO L82 PathProgramCache]: Analyzing trace with hash 2084950706, now seen corresponding path program 1 times [2020-10-23 19:54:25,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:25,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837850124] [2020-10-23 19:54:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:25,402 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,809 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:25,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:54:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:25,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:54:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:54:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-23 19:54:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-23 19:54:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-23 19:54:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:26,502 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 19:54:26,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837850124] [2020-10-23 19:54:26,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:26,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-23 19:54:26,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161987003] [2020-10-23 19:54:26,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-23 19:54:26,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:26,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-23 19:54:26,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2020-10-23 19:54:26,506 INFO L87 Difference]: Start difference. First operand 2229 states and 2533 transitions. Second operand 22 states. [2020-10-23 19:54:27,321 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:27,863 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:28,276 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 19:54:28,683 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:29,113 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:29,494 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:30,710 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:31,939 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:32,421 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:33,047 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:33,509 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:35,869 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:36,427 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:36,823 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:37,242 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:37,682 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:38,255 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:38,727 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:39,204 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:40,091 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 19:54:41,133 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-10-23 19:54:42,003 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 19:54:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:47,519 INFO L93 Difference]: Finished difference Result 5248 states and 6384 transitions. [2020-10-23 19:54:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-10-23 19:54:47,520 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 233 [2020-10-23 19:54:47,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:47,540 INFO L225 Difference]: With dead ends: 5248 [2020-10-23 19:54:47,540 INFO L226 Difference]: Without dead ends: 3139 [2020-10-23 19:54:47,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1967 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=1223, Invalid=5419, Unknown=0, NotChecked=0, Total=6642 [2020-10-23 19:54:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2020-10-23 19:54:48,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2185. [2020-10-23 19:54:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2185 states. [2020-10-23 19:54:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 2473 transitions. [2020-10-23 19:54:48,420 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 2473 transitions. Word has length 233 [2020-10-23 19:54:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:48,420 INFO L481 AbstractCegarLoop]: Abstraction has 2185 states and 2473 transitions. [2020-10-23 19:54:48,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-23 19:54:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 2473 transitions. [2020-10-23 19:54:48,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-23 19:54:48,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:48,428 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:48,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:54:48,428 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 19:54:48,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:48,429 INFO L82 PathProgramCache]: Analyzing trace with hash 477791015, now seen corresponding path program 1 times [2020-10-23 19:54:48,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:48,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494512763] [2020-10-23 19:54:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:48,447 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 19:54:48,451 INFO L168 Benchmark]: Toolchain (without parser) took 83267.93 ms. Allocated memory was 151.0 MB in the beginning and 997.2 MB in the end (delta: 846.2 MB). Free memory was 125.8 MB in the beginning and 488.8 MB in the end (delta: -363.0 MB). Peak memory consumption was 484.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:48,451 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:54:48,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 103.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:48,453 INFO L168 Benchmark]: Boogie Preprocessor took 102.74 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 100.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:48,454 INFO L168 Benchmark]: RCFGBuilder took 1525.16 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 99.8 MB in the beginning and 126.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:48,454 INFO L168 Benchmark]: TraceAbstraction took 81010.73 ms. Allocated memory was 190.8 MB in the beginning and 997.2 MB in the end (delta: 806.4 MB). Free memory was 126.2 MB in the beginning and 488.8 MB in the end (delta: -362.5 MB). Peak memory consumption was 444.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:48,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 618.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 103.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 102.74 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 100.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1525.16 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 99.8 MB in the beginning and 126.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 81010.73 ms. Allocated memory was 190.8 MB in the beginning and 997.2 MB in the end (delta: 806.4 MB). Free memory was 126.2 MB in the beginning and 488.8 MB in the end (delta: -362.5 MB). Peak memory consumption was 444.3 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...