/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/bubble_sort-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 06:39:48,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 06:39:48,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 06:39:48,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 06:39:48,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 06:39:48,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 06:39:48,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 06:39:48,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 06:39:48,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 06:39:48,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 06:39:48,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 06:39:48,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 06:39:48,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 06:39:48,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 06:39:48,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 06:39:48,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 06:39:48,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 06:39:48,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 06:39:48,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 06:39:48,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 06:39:48,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 06:39:48,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 06:39:48,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 06:39:48,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 06:39:48,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 06:39:48,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 06:39:48,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 06:39:48,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 06:39:48,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 06:39:48,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 06:39:48,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 06:39:48,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 06:39:48,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 06:39:48,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 06:39:48,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 06:39:48,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 06:39:48,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 06:39:48,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 06:39:48,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 06:39:48,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 06:39:48,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 06:39:48,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 06:39:48,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 06:39:48,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 06:39:48,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 06:39:48,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 06:39:48,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 06:39:48,815 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 06:39:48,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 06:39:48,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 06:39:48,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 06:39:48,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 06:39:48,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 06:39:48,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 06:39:48,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 06:39:48,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 06:39:48,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 06:39:48,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 06:39:48,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 06:39:48,816 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 06:39:48,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 06:39:49,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 06:39:49,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 06:39:49,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 06:39:49,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 06:39:49,192 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 06:39:49,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2021-05-01 06:39:49,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320c2abab/ce304dea76dc4dc28545e50d8039f81a/FLAG1e1ca0884 [2021-05-01 06:39:49,786 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 06:39:49,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2021-05-01 06:39:49,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320c2abab/ce304dea76dc4dc28545e50d8039f81a/FLAG1e1ca0884 [2021-05-01 06:39:50,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320c2abab/ce304dea76dc4dc28545e50d8039f81a [2021-05-01 06:39:50,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 06:39:50,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 06:39:50,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 06:39:50,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 06:39:50,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 06:39:50,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6865d051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50, skipping insertion in model container [2021-05-01 06:39:50,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 06:39:50,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 06:39:50,449 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 06:39:50,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 06:39:50,543 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 06:39:50,557 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 06:39:50,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 06:39:50,651 INFO L208 MainTranslator]: Completed translation [2021-05-01 06:39:50,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50 WrapperNode [2021-05-01 06:39:50,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 06:39:50,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 06:39:50,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 06:39:50,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 06:39:50,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (1/1) ... [2021-05-01 06:39:50,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 06:39:50,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 06:39:50,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 06:39:50,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 06:39:50,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (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 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-05-01 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-05-01 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-05-01 06:39:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-05-01 06:39:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-05-01 06:39:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-05-01 06:39:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-05-01 06:39:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-05-01 06:39:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-05-01 06:39:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-05-01 06:39:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-05-01 06:39:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-05-01 06:39:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 06:39:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 06:39:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 06:39:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 06:39:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 06:39:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 06:39:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-01 06:39:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 06:39:51,245 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-05-01 06:39:51,519 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 06:39:51,519 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-05-01 06:39:51,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 06:39:51 BoogieIcfgContainer [2021-05-01 06:39:51,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 06:39:51,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 06:39:51,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 06:39:51,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 06:39:51,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 06:39:50" (1/3) ... [2021-05-01 06:39:51,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468f5449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 06:39:51, skipping insertion in model container [2021-05-01 06:39:51,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:50" (2/3) ... [2021-05-01 06:39:51,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468f5449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 06:39:51, skipping insertion in model container [2021-05-01 06:39:51,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 06:39:51" (3/3) ... [2021-05-01 06:39:51,528 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-05-01 06:39:51,533 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 06:39:51,537 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 06:39:51,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 06:39:51,569 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 06:39:51,569 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 06:39:51,569 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 06:39:51,569 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 06:39:51,570 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 06:39:51,570 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 06:39:51,570 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 06:39:51,570 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 06:39:51,594 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 06:39:51,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-01 06:39:51,604 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:51,605 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 06:39:51,606 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:51,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:51,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1791385099, now seen corresponding path program 1 times [2021-05-01 06:39:51,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:51,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163438998] [2021-05-01 06:39:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:51,669 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-01 06:39:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,906 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 06:39:51,907 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:51,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163438998] [2021-05-01 06:39:51,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [163438998] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:51,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:51,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 06:39:51,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006163675] [2021-05-01 06:39:51,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 06:39:51,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:51,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 06:39:51,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 06:39:51,930 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 06:39:52,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:52,589 INFO L93 Difference]: Finished difference Result 331 states and 501 transitions. [2021-05-01 06:39:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 06:39:52,592 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 06:39:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:52,603 INFO L225 Difference]: With dead ends: 331 [2021-05-01 06:39:52,603 INFO L226 Difference]: Without dead ends: 164 [2021-05-01 06:39:52,608 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:52,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-05-01 06:39:52,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2021-05-01 06:39:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 117 states have internal predecessors, (121), 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 06:39:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2021-05-01 06:39:52,669 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 18 [2021-05-01 06:39:52,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:52,670 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2021-05-01 06:39:52,670 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 06:39:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2021-05-01 06:39:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-01 06:39:52,672 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:52,672 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 06:39:52,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 06:39:52,672 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:52,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:52,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2112592059, now seen corresponding path program 1 times [2021-05-01 06:39:52,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:52,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391019044] [2021-05-01 06:39:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:52,681 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:39:52,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:39:52,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:39:52,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:39:52,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:39:52,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-01 06:39:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-05-01 06:39:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-05-01 06:39:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-05-01 06:39:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,985 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 06:39:52,986 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:52,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391019044] [2021-05-01 06:39:52,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1391019044] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:52,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:52,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 06:39:52,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007680093] [2021-05-01 06:39:52,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 06:39:52,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:52,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 06:39:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:39:52,989 INFO L87 Difference]: Start difference. First operand 143 states and 166 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 06:39:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:54,200 INFO L93 Difference]: Finished difference Result 241 states and 289 transitions. [2021-05-01 06:39:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 06:39:54,201 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 06:39:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:54,203 INFO L225 Difference]: With dead ends: 241 [2021-05-01 06:39:54,203 INFO L226 Difference]: Without dead ends: 236 [2021-05-01 06:39:54,205 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 313.3ms TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:39:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-05-01 06:39:54,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2021-05-01 06:39:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 155 states have (on average 1.2451612903225806) internal successors, (193), 172 states have internal predecessors, (193), 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 06:39:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 238 transitions. [2021-05-01 06:39:54,242 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 238 transitions. Word has length 37 [2021-05-01 06:39:54,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:54,242 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 238 transitions. [2021-05-01 06:39:54,242 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 06:39:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2021-05-01 06:39:54,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-01 06:39:54,243 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:54,243 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 06:39:54,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 06:39:54,243 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:54,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:54,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1799360915, now seen corresponding path program 1 times [2021-05-01 06:39:54,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:54,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742102883] [2021-05-01 06:39:54,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:54,247 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 06:39:54,414 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 06:39:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 06:39:54,557 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 06:39:54,602 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-05-01 06:39:54,603 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-05-01 06:39:54,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 06:39:54,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 06:39:54 BoogieIcfgContainer [2021-05-01 06:39:54,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 06:39:54,634 INFO L168 Benchmark]: Toolchain (without parser) took 4367.67 ms. Allocated memory was 174.1 MB in the beginning and 232.8 MB in the end (delta: 58.7 MB). Free memory was 138.7 MB in the beginning and 109.1 MB in the end (delta: 29.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 8.0 GB. [2021-05-01 06:39:54,634 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory is still 156.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 06:39:54,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.55 ms. Allocated memory is still 174.1 MB. Free memory was 138.5 MB in the beginning and 148.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 06:39:54,636 INFO L168 Benchmark]: Boogie Preprocessor took 67.88 ms. Allocated memory is still 174.1 MB. Free memory was 148.3 MB in the beginning and 144.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-01 06:39:54,639 INFO L168 Benchmark]: RCFGBuilder took 800.35 ms. Allocated memory is still 174.1 MB. Free memory was 144.5 MB in the beginning and 136.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. [2021-05-01 06:39:54,640 INFO L168 Benchmark]: TraceAbstraction took 3109.58 ms. Allocated memory was 174.1 MB in the beginning and 232.8 MB in the end (delta: 58.7 MB). Free memory was 136.3 MB in the beginning and 109.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 86.4 MB. Max. memory is 8.0 GB. [2021-05-01 06:39:54,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory is still 156.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 384.55 ms. Allocated memory is still 174.1 MB. Free memory was 138.5 MB in the beginning and 148.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.88 ms. Allocated memory is still 174.1 MB. Free memory was 148.3 MB in the beginning and 144.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 800.35 ms. Allocated memory is still 174.1 MB. Free memory was 144.5 MB in the beginning and 136.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3109.58 ms. Allocated memory was 174.1 MB in the beginning and 232.8 MB in the end (delta: 58.7 MB). Free memory was 136.3 MB in the beginning and 109.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 86.4 MB. Max. memory is 8.0 GB. * 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}; [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; [L839] CALL gl_read() [L676] int tmp ; [L677] int tmp___0 ; [L680] COND TRUE 1 [L683] tmp = __VERIFIER_nondet_int() [L684] CALL gl_insert(tmp) [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 [L642] COND FALSE !(! node) [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 [L653] CALL list_add(__cil_tmp7, & gl_list) [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) [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 [L599] RET __list_add(new, head, __cil_tmp3) [L653] RET list_add(__cil_tmp7, & gl_list) [L656] COND TRUE 1 [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 [L684] RET gl_insert(tmp) [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) [L839] RET gl_read() [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) [L841] CALL inspect(__cil_tmp1) [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 ; [L179] COND TRUE 1 [L181] COND FALSE !(! head) [L192] COND TRUE 1 [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 [L199] COND TRUE ! __cil_tmp6 [L201] CALL fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3035.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 17.2ms, AutomataDifference: 1908.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 278 SDtfs, 893 SDslu, 166 SDs, 0 SdLazy, 646 SolverSat, 287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1071.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 406.7ms 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: 86.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...