/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/bubble_sort-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 02:47:21,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 02:47:21,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 02:47:21,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 02:47:21,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 02:47:21,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 02:47:21,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 02:47:21,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 02:47:21,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 02:47:21,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 02:47:21,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 02:47:21,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 02:47:21,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 02:47:21,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 02:47:21,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 02:47:21,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 02:47:21,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 02:47:21,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 02:47:21,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 02:47:21,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 02:47:21,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 02:47:21,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 02:47:21,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 02:47:21,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 02:47:21,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 02:47:21,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 02:47:21,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 02:47:21,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 02:47:21,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 02:47:21,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 02:47:21,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 02:47:21,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 02:47:21,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 02:47:21,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 02:47:21,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 02:47:21,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 02:47:21,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 02:47:21,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 02:47:21,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 02:47:21,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 02:47:21,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 02:47:21,863 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 02:47:21,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 02:47:21,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 02:47:21,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 02:47:21,884 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 02:47:21,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 02:47:21,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 02:47:21,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 02:47:21,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 02:47:21,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 02:47:21,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 02:47:21,886 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 02:47:21,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 02:47:21,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 02:47:21,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 02:47:21,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 02:47:21,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 02:47:21,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 02:47:21,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 02:47:21,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 02:47:21,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 02:47:21,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 02:47:21,889 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 02:47:21,889 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 02:47:22,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 02:47:22,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 02:47:22,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 02:47:22,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 02:47:22,248 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 02:47:22,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2021-05-01 02:47:22,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29bcb0e1/00c4ffe968a54b42b9a0aa22a8487439/FLAG6f57fb2f4 [2021-05-01 02:47:22,739 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 02:47:22,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2021-05-01 02:47:22,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29bcb0e1/00c4ffe968a54b42b9a0aa22a8487439/FLAG6f57fb2f4 [2021-05-01 02:47:22,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29bcb0e1/00c4ffe968a54b42b9a0aa22a8487439 [2021-05-01 02:47:22,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 02:47:22,769 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 02:47:22,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 02:47:22,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 02:47:22,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 02:47:22,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:47:22" (1/1) ... [2021-05-01 02:47:22,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b860e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:22, skipping insertion in model container [2021-05-01 02:47:22,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:47:22" (1/1) ... [2021-05-01 02:47:22,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 02:47:22,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 02:47:22,984 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i[1830,1843] [2021-05-01 02:47:23,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:47:23,133 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 02:47:23,154 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i[1830,1843] [2021-05-01 02:47:23,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:47:23,241 INFO L208 MainTranslator]: Completed translation [2021-05-01 02:47:23,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23 WrapperNode [2021-05-01 02:47:23,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 02:47:23,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 02:47:23,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 02:47:23,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 02:47:23,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (1/1) ... [2021-05-01 02:47:23,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 02:47:23,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 02:47:23,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 02:47:23,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 02:47:23,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (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 [2021-05-01 02:47:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 02:47:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 02:47:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 02:47:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-05-01 02:47:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-05-01 02:47:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-05-01 02:47:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-05-01 02:47:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-05-01 02:47:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-05-01 02:47:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-05-01 02:47:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-05-01 02:47:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-05-01 02:47:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-05-01 02:47:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-05-01 02:47:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-05-01 02:47:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 02:47:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 02:47:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 02:47:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 02:47:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 02:47:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 02:47:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 02:47:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 02:47:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-05-01 02:47:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 02:47:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-01 02:47:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 02:47:24,048 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-05-01 02:47:24,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 02:47:24,340 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-05-01 02:47:24,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:47:24 BoogieIcfgContainer [2021-05-01 02:47:24,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 02:47:24,342 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 02:47:24,342 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 02:47:24,343 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 02:47:24,345 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:47:24" (1/1) ... [2021-05-01 02:47:24,362 INFO L181 rdanLoopAcceleration]: Guard: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2021-05-01 02:47:24,376 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,383 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,385 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,387 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,389 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 02:47:24,396 INFO L1111 elerationTransformer]: Accelerated Formula: false InVars {} OutVars{fail_#t~nondet5.offset=|v_fail_#t~nondet5.offset_1|, fail_#t~nondet5.base=|v_fail_#t~nondet5.base_1|} AuxVars[] AssignedVars[fail_#t~nondet5.offset, fail_#t~nondet5.base] with Formula: (and (= v_itFin_1 0) (= |v_fail_#t~nondet5.base_1| |v_fail_#t~nondet5.base_2|) (= |v_fail_#t~nondet5.offset_1| |v_fail_#t~nondet5.offset_2|)) InVars {fail_#t~nondet5.base=|v_fail_#t~nondet5.base_2|, fail_#t~nondet5.offset=|v_fail_#t~nondet5.offset_2|} OutVars{fail_#t~nondet5.base=|v_fail_#t~nondet5.base_1|, fail_#t~nondet5.offset=|v_fail_#t~nondet5.offset_1|} AuxVars[v_itFin_1] AssignedVars[fail_#t~nondet5.offset, fail_#t~nondet5.base] [2021-05-01 02:47:24,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:47:24 BasicIcfg [2021-05-01 02:47:24,414 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 02:47:24,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 02:47:24,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 02:47:24,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 02:47:24,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 02:47:22" (1/4) ... [2021-05-01 02:47:24,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363b7881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:47:24, skipping insertion in model container [2021-05-01 02:47:24,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:47:23" (2/4) ... [2021-05-01 02:47:24,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363b7881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:47:24, skipping insertion in model container [2021-05-01 02:47:24,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:47:24" (3/4) ... [2021-05-01 02:47:24,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363b7881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:47:24, skipping insertion in model container [2021-05-01 02:47:24,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:47:24" (4/4) ... [2021-05-01 02:47:24,420 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.iJordan [2021-05-01 02:47:24,424 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 02:47:24,428 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 02:47:24,442 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 02:47:24,456 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 02:47:24,456 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 02:47:24,457 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 02:47:24,457 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 02:47:24,457 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 02:47:24,457 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 02:47:24,457 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 02:47:24,457 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 02:47:24,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 127 states have internal predecessors, (179), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-01 02:47:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-01 02:47:24,493 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:47:24,493 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:47:24,494 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:47:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:47:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash 626291817, now seen corresponding path program 1 times [2021-05-01 02:47:24,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:47:24,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091423317] [2021-05-01 02:47:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:47:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:24,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:24,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:24,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:47:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:24,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:24,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-01 02:47:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:24,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:24,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:24,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 02:47:24,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:47:24,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091423317] [2021-05-01 02:47:24,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091423317] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:47:24,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:47:24,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:47:24,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434281298] [2021-05-01 02:47:24,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:47:24,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:47:24,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:47:24,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:47:24,806 INFO L87 Difference]: Start difference. First operand has 156 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 127 states have internal predecessors, (179), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-01 02:47:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:47:25,388 INFO L93 Difference]: Finished difference Result 183 states and 218 transitions. [2021-05-01 02:47:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 02:47:25,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2021-05-01 02:47:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:47:25,403 INFO L225 Difference]: With dead ends: 183 [2021-05-01 02:47:25,403 INFO L226 Difference]: Without dead ends: 164 [2021-05-01 02:47:25,404 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:47:25,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-05-01 02:47:25,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2021-05-01 02:47:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 118 states have internal predecessors, (122), 32 states have call successors, (32), 13 states have call predecessors, (32), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 02:47:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2021-05-01 02:47:25,458 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 18 [2021-05-01 02:47:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:47:25,459 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2021-05-01 02:47:25,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-01 02:47:25,459 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2021-05-01 02:47:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-01 02:47:25,461 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:47:25,461 INFO L519 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] [2021-05-01 02:47:25,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 02:47:25,461 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:47:25,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:47:25,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1647321823, now seen corresponding path program 1 times [2021-05-01 02:47:25,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:47:25,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324905557] [2021-05-01 02:47:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:47:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:25,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 02:47:25,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 02:47:25,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 02:47:25,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 02:47:25,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:25,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:47:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:25,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 02:47:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-01 02:47:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:25,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:25,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-05-01 02:47:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:25,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:25,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-05-01 02:47:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:25,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:25,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-05-01 02:47:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:47:25,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:47:25,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:47:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 02:47:25,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:47:25,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324905557] [2021-05-01 02:47:25,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324905557] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:47:25,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:47:25,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 02:47:25,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957761452] [2021-05-01 02:47:25,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 02:47:25,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:47:25,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 02:47:25,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-05-01 02:47:25,863 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-01 02:47:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:47:27,068 INFO L93 Difference]: Finished difference Result 238 states and 287 transitions. [2021-05-01 02:47:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 02:47:27,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2021-05-01 02:47:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:47:27,070 INFO L225 Difference]: With dead ends: 238 [2021-05-01 02:47:27,070 INFO L226 Difference]: Without dead ends: 236 [2021-05-01 02:47:27,071 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 346.5ms TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-05-01 02:47:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-05-01 02:47:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2021-05-01 02:47:27,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 155 states have (on average 1.2516129032258065) internal successors, (194), 173 states have internal predecessors, (194), 32 states have call successors, (32), 14 states have call predecessors, (32), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 02:47:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 239 transitions. [2021-05-01 02:47:27,084 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 239 transitions. Word has length 37 [2021-05-01 02:47:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:47:27,084 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 239 transitions. [2021-05-01 02:47:27,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-01 02:47:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 239 transitions. [2021-05-01 02:47:27,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-01 02:47:27,086 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:47:27,086 INFO L519 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] [2021-05-01 02:47:27,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 02:47:27,086 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:47:27,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:47:27,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1085880763, now seen corresponding path program 1 times [2021-05-01 02:47:27,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:47:27,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40681693] [2021-05-01 02:47:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:47:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 02:47:27,286 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 02:47:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 02:47:27,411 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 02:47:27,458 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-01 02:47:27,458 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-05-01 02:47:27,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 02:47:27,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:47:27 BasicIcfg [2021-05-01 02:47:27,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 02:47:27,530 INFO L168 Benchmark]: Toolchain (without parser) took 4760.06 ms. Allocated memory was 218.1 MB in the beginning and 297.8 MB in the end (delta: 79.7 MB). Free memory was 181.6 MB in the beginning and 129.7 MB in the end (delta: 51.9 MB). Peak memory consumption was 131.6 MB. Max. memory is 8.0 GB. [2021-05-01 02:47:27,530 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 218.1 MB. Free memory is still 199.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 02:47:27,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.29 ms. Allocated memory is still 218.1 MB. Free memory was 181.4 MB in the beginning and 191.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-05-01 02:47:27,534 INFO L168 Benchmark]: Boogie Preprocessor took 114.82 ms. Allocated memory is still 218.1 MB. Free memory was 191.8 MB in the beginning and 187.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 02:47:27,535 INFO L168 Benchmark]: RCFGBuilder took 983.52 ms. Allocated memory is still 218.1 MB. Free memory was 187.6 MB in the beginning and 183.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. [2021-05-01 02:47:27,535 INFO L168 Benchmark]: IcfgTransformer took 71.31 ms. Allocated memory is still 218.1 MB. Free memory was 183.2 MB in the beginning and 176.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-05-01 02:47:27,536 INFO L168 Benchmark]: TraceAbstraction took 3113.40 ms. Allocated memory was 218.1 MB in the beginning and 297.8 MB in the end (delta: 79.7 MB). Free memory was 175.9 MB in the beginning and 129.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 125.9 MB. Max. memory is 8.0 GB. [2021-05-01 02:47:27,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 2 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 218.1 MB. Free memory is still 199.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 457.29 ms. Allocated memory is still 218.1 MB. Free memory was 181.4 MB in the beginning and 191.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 114.82 ms. Allocated memory is still 218.1 MB. Free memory was 191.8 MB in the beginning and 187.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 983.52 ms. Allocated memory is still 218.1 MB. Free memory was 187.6 MB in the beginning and 183.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 71.31 ms. Allocated memory is still 218.1 MB. Free memory was 183.2 MB in the beginning and 176.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3113.40 ms. Allocated memory was 218.1 MB in the beginning and 297.8 MB in the end (delta: 79.7 MB). Free memory was 175.9 MB in the beginning and 129.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 125.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] struct list_head gl_list = {& gl_list, & gl_list}; VAL [\old(gl_list)=null, \old(gl_list)=null, gl_list={6442450936:0}] [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; VAL [gl_list={6442450936:0}] [L839] CALL gl_read() VAL [gl_list={6442450936:0}] [L676] int tmp ; [L677] int tmp___0 ; VAL [gl_list={6442450936:0}] [L680] COND TRUE 1 VAL [gl_list={6442450936:0}] [L683] tmp = __VERIFIER_nondet_int() [L684] CALL gl_insert(tmp) VAL [\old(value)=3, gl_list={6442450936:0}] [L622] struct node *node ; [L623] void *tmp ; [L624] unsigned int __cil_tmp4 ; [L625] unsigned int __cil_tmp5 ; [L626] unsigned int __cil_tmp6 ; [L627] struct list_head *__cil_tmp7 ; [L628] unsigned int __cil_tmp8 ; [L629] unsigned int __cil_tmp9 ; [L630] unsigned int __cil_tmp10 ; [L631] unsigned int __cil_tmp11 ; [L632] unsigned int __cil_tmp12 ; [L633] unsigned int __cil_tmp13 ; [L634] unsigned int __cil_tmp14 ; [L635] unsigned int __cil_tmp15 ; [L638] __cil_tmp4 = (unsigned int )20UL [L639] tmp = malloc(__cil_tmp4) [L640] node = (struct node *)tmp VAL [\old(value)=3, __cil_tmp4=20, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L642] COND FALSE !(! node) VAL [\old(value)=3, __cil_tmp4=20, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 VAL [\old(value)=3, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L653] CALL list_add(__cil_tmp7, & gl_list) VAL [gl_list={6442450936:0}, head={6442450936:0}, new={0:2147483640}] [L595] struct list_head *__cil_tmp3 ; [L598] EXPR \read(*head) [L598] __cil_tmp3 = *((struct list_head **)head) [L599] CALL __list_add(new, head, __cil_tmp3) VAL [gl_list={6442450936:0}, new={0:2147483640}, next={6442450936:0}, prev={6442450936:0}] [L567] unsigned int __cil_tmp4 ; [L568] unsigned int __cil_tmp5 ; [L569] unsigned int __cil_tmp6 ; [L570] unsigned int __cil_tmp7 ; [L572] __cil_tmp4 = (unsigned int )next [L573] __cil_tmp5 = __cil_tmp4 + 4 [L574] *((struct list_head **)__cil_tmp5) = new [L575] *((struct list_head **)new) = next [L576] __cil_tmp6 = (unsigned int )new [L577] __cil_tmp7 = __cil_tmp6 + 4 [L578] *((struct list_head **)__cil_tmp7) = prev [L579] *((struct list_head **)prev) = new VAL [__cil_tmp4=2147483640, __cil_tmp5=2147483644, __cil_tmp6=2147483640, __cil_tmp7=2147483644, gl_list={6442450936:0}, new={0:2147483640}, new={0:2147483640}, next={6442450936:0}, next={6442450936:0}, prev={6442450936:0}, prev={6442450936:0}] [L599] RET __list_add(new, head, __cil_tmp3) VAL [__cil_tmp3={6442450936:0}, gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}, new={0:2147483640}, new={0:2147483640}] [L653] RET list_add(__cil_tmp7, & gl_list) VAL [\old(value)=3, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L656] COND TRUE 1 VAL [\old(value)=3, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L658] __cil_tmp8 = (unsigned int )node [L659] __cil_tmp9 = __cil_tmp8 + 12 [L660] __cil_tmp10 = (unsigned int )node [L661] __cil_tmp11 = __cil_tmp10 + 12 [L662] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L663] __cil_tmp12 = (unsigned int )node [L664] __cil_tmp13 = __cil_tmp12 + 12 [L665] __cil_tmp14 = (unsigned int )node [L666] __cil_tmp15 = __cil_tmp14 + 12 [L667] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 VAL [\old(value)=3, __cil_tmp10=2147483636, __cil_tmp11=2147483648, __cil_tmp12=2147483636, __cil_tmp13=2147483648, __cil_tmp14=2147483636, __cil_tmp15=2147483648, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, __cil_tmp8=2147483636, __cil_tmp9=2147483648, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L684] RET gl_insert(tmp) VAL [gl_list={6442450936:0}, tmp=3] [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) VAL [gl_list={6442450936:0}, tmp=3, tmp___0=0] [L839] RET gl_read() VAL [gl_list={6442450936:0}] [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) VAL [__cil_tmp1={6442450936:0}, gl_list={6442450936:0}] [L841] CALL inspect(__cil_tmp1) VAL [gl_list={6442450936:0}, head={6442450936:0}] [L55] struct node const *node ; [L56] unsigned int __cil_tmp3 ; [L57] struct list_head *__cil_tmp4 ; [L58] unsigned int __cil_tmp5 ; [L59] int __cil_tmp6 ; [L60] unsigned int __cil_tmp7 ; [L61] unsigned int __cil_tmp8 ; [L62] unsigned int __cil_tmp9 ; [L63] struct list_head *__cil_tmp10 ; [L64] unsigned int __cil_tmp11 ; [L65] int __cil_tmp12 ; [L66] unsigned int __cil_tmp13 ; [L67] unsigned int __cil_tmp14 ; [L68] struct list_head *__cil_tmp15 ; [L69] unsigned int __cil_tmp16 ; [L70] struct list_head *__cil_tmp17 ; [L71] unsigned int __cil_tmp18 ; [L72] int __cil_tmp19 ; [L73] unsigned int __cil_tmp20 ; [L74] unsigned int __cil_tmp21 ; [L75] unsigned int __cil_tmp22 ; [L76] struct list_head *__cil_tmp23 ; [L77] unsigned int __cil_tmp24 ; [L78] int __cil_tmp25 ; [L79] struct node *__cil_tmp26 ; [L80] unsigned int __cil_tmp27 ; [L81] unsigned int __cil_tmp28 ; [L82] struct list_head *__cil_tmp29 ; [L83] unsigned long __cil_tmp30 ; [L84] char *__cil_tmp31 ; [L85] char *__cil_tmp32 ; [L86] struct node *__cil_tmp33 ; [L87] unsigned int __cil_tmp34 ; [L88] unsigned int __cil_tmp35 ; [L89] struct list_head const *__cil_tmp36 ; [L90] unsigned int __cil_tmp37 ; [L91] unsigned int __cil_tmp38 ; [L92] unsigned int __cil_tmp39 ; [L93] struct list_head *__cil_tmp40 ; [L94] unsigned int __cil_tmp41 ; [L95] int __cil_tmp42 ; [L96] unsigned int __cil_tmp43 ; [L97] unsigned int __cil_tmp44 ; [L98] struct list_head const *__cil_tmp45 ; [L99] unsigned int __cil_tmp46 ; [L100] unsigned int __cil_tmp47 ; [L101] unsigned int __cil_tmp48 ; [L102] unsigned int __cil_tmp49 ; [L103] struct list_head *__cil_tmp50 ; [L104] unsigned int __cil_tmp51 ; [L105] int __cil_tmp52 ; [L106] unsigned int __cil_tmp53 ; [L107] unsigned int __cil_tmp54 ; [L108] struct list_head const *__cil_tmp55 ; [L109] unsigned int __cil_tmp56 ; [L110] unsigned int __cil_tmp57 ; [L111] unsigned int __cil_tmp58 ; [L112] struct list_head *__cil_tmp59 ; [L113] unsigned int __cil_tmp60 ; [L114] int __cil_tmp61 ; [L115] unsigned int __cil_tmp62 ; [L116] unsigned int __cil_tmp63 ; [L117] struct list_head const *__cil_tmp64 ; [L118] unsigned int __cil_tmp65 ; [L119] unsigned int __cil_tmp66 ; [L120] unsigned int __cil_tmp67 ; [L121] unsigned int __cil_tmp68 ; [L122] struct list_head *__cil_tmp69 ; [L123] unsigned int __cil_tmp70 ; [L124] int __cil_tmp71 ; [L125] struct node const *__cil_tmp72 ; [L126] unsigned int __cil_tmp73 ; [L127] unsigned int __cil_tmp74 ; [L128] int __cil_tmp75 ; [L129] unsigned int __cil_tmp76 ; [L130] unsigned int __cil_tmp77 ; [L131] struct list_head const *__cil_tmp78 ; [L132] struct node const *__cil_tmp79 ; [L133] unsigned int __cil_tmp80 ; [L134] unsigned int __cil_tmp81 ; [L135] int __cil_tmp82 ; [L136] int const *__cil_tmp83 ; [L137] struct node const *__cil_tmp84 ; [L138] unsigned int __cil_tmp85 ; [L139] unsigned int __cil_tmp86 ; [L140] int __cil_tmp87 ; [L141] unsigned int __cil_tmp88 ; [L142] unsigned int __cil_tmp89 ; [L143] struct list_head *__cil_tmp90 ; [L144] unsigned int __cil_tmp91 ; [L145] unsigned int __cil_tmp92 ; [L146] struct list_head *__cil_tmp93 ; [L147] unsigned int __cil_tmp94 ; [L148] unsigned int __cil_tmp95 ; [L149] int __cil_tmp96 ; [L150] unsigned int __cil_tmp97 ; [L151] unsigned int __cil_tmp98 ; [L152] unsigned int __cil_tmp99 ; [L153] struct list_head *__cil_tmp100 ; [L154] struct list_head *__cil_tmp101 ; [L155] unsigned int __cil_tmp102 ; [L156] unsigned int __cil_tmp103 ; [L157] int __cil_tmp104 ; [L158] struct list_head *__cil_tmp105 ; [L159] unsigned int __cil_tmp106 ; [L160] unsigned int __cil_tmp107 ; [L161] unsigned int __cil_tmp108 ; [L162] struct list_head const *__cil_tmp109 ; [L163] unsigned int __cil_tmp110 ; [L164] struct list_head *__cil_tmp111 ; [L165] unsigned int __cil_tmp112 ; [L166] struct node *__cil_tmp113 ; [L167] unsigned int __cil_tmp114 ; [L168] unsigned int __cil_tmp115 ; [L169] struct list_head *__cil_tmp116 ; [L170] unsigned long __cil_tmp117 ; [L171] char *__cil_tmp118 ; [L172] char *__cil_tmp119 ; [L173] struct node *__cil_tmp120 ; [L174] unsigned int __cil_tmp121 ; [L175] int __cil_tmp122 ; VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L179] COND TRUE 1 VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L181] COND FALSE !(! head) VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L192] COND TRUE 1 VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L195] __cil_tmp3 = (unsigned int )head [L196] EXPR \read(*head) [L196] __cil_tmp4 = *((struct list_head * const *)head) [L197] __cil_tmp5 = (unsigned int )__cil_tmp4 [L198] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 VAL [__cil_tmp3=2147483640, __cil_tmp4={0:2147483640}, __cil_tmp5=2147483640, __cil_tmp6=0, gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L199] COND TRUE ! __cil_tmp6 VAL [__cil_tmp3=2147483640, __cil_tmp4={0:2147483640}, __cil_tmp5=2147483640, __cil_tmp6=0, gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L201] CALL fail() VAL [gl_list={6442450936:0}] [L46] reach_error() VAL [gl_list={6442450936:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 156 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3004.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 23.5ms, AutomataDifference: 1820.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 278 SDtfs, 898 SDslu, 166 SDs, 0 SdLazy, 651 SolverSat, 287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1141.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 457.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.8ms SsaConstructionTime, 291.5ms SatisfiabilityAnalysisTime, 496.2ms InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...