/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/bubble_sort-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:25:48,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:25:48,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:25:49,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:25:49,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:25:49,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:25:49,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:25:49,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:25:49,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:25:49,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:25:49,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:25:49,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:25:49,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:25:49,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:25:49,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:25:49,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:25:49,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:25:49,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:25:49,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:25:49,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:25:49,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:25:49,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:25:49,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:25:49,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:25:49,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:25:49,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 16:25:49,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 16:25:49,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 16:25:49,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 16:25:49,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 16:25:49,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 16:25:49,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 16:25:49,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 16:25:49,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:25:49,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:25:49,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:25:49,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 16:25:49,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:25:49,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:25:49,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:25:49,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:25:49,186 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:25:49,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:25:49,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:25:49,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:25:49,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:25:49,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:25:49,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:25:49,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:25:49,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:25:49,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:25:49,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:25:49,190 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:25:49,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:25:49,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:25:49,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:25:49,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:25:49,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:25:49,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:25:49,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:25:49,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:25:49,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:25:49,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:25:49,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:25:49,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:25:49,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:25:49,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:25:49,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:25:49,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:25:49,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:25:49,638 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:25:49,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2021-02-21 16:25:49,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06752b545/eea0dc2fa4354691ac22d902038525de/FLAG42b35f802 [2021-02-21 16:25:50,317 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:25:50,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2021-02-21 16:25:50,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06752b545/eea0dc2fa4354691ac22d902038525de/FLAG42b35f802 [2021-02-21 16:25:50,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06752b545/eea0dc2fa4354691ac22d902038525de [2021-02-21 16:25:50,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:25:50,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:25:50,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:25:50,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:25:50,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:25:50,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:25:50" (1/1) ... [2021-02-21 16:25:50,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dbc7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:50, skipping insertion in model container [2021-02-21 16:25:50,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:25:50" (1/1) ... [2021-02-21 16:25:50,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:25:50,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:25:50,924 WARN L226 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] [2021-02-21 16:25:51,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:25:51,045 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:25:51,060 WARN L226 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] [2021-02-21 16:25:51,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:25:51,153 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:25:51,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51 WrapperNode [2021-02-21 16:25:51,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:25:51,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:25:51,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:25:51,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:25:51,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... [2021-02-21 16:25:51,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:25:51,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:25:51,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:25:51,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:25:51,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:25:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:25:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:25:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:25:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-02-21 16:25:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-02-21 16:25:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-02-21 16:25:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-02-21 16:25:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-02-21 16:25:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-02-21 16:25:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-02-21 16:25:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-02-21 16:25:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-02-21 16:25:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-02-21 16:25:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-02-21 16:25:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-02-21 16:25:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:25:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:25:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:25:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 16:25:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 16:25:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:25:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:25:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 16:25:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 16:25:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:25:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-02-21 16:25:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-02-21 16:25:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 16:25:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:25:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-02-21 16:25:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-02-21 16:25:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:25:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-02-21 16:25:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:25:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-02-21 16:25:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-02-21 16:25:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:25:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:25:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:25:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-21 16:25:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:25:52,018 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-02-21 16:25:52,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:25:52,333 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-02-21 16:25:52,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:25:52 BoogieIcfgContainer [2021-02-21 16:25:52,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:25:52,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:25:52,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:25:52,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:25:52,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:25:50" (1/3) ... [2021-02-21 16:25:52,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595e3bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:25:52, skipping insertion in model container [2021-02-21 16:25:52,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:51" (2/3) ... [2021-02-21 16:25:52,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595e3bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:25:52, skipping insertion in model container [2021-02-21 16:25:52,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:25:52" (3/3) ... [2021-02-21 16:25:52,349 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-02-21 16:25:52,356 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:25:52,361 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:25:52,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:25:52,411 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:25:52,411 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:25:52,411 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:25:52,412 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:25:52,412 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:25:52,412 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:25:52,412 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:25:52,412 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:25:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2021-02-21 16:25:52,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-02-21 16:25:52,442 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:25:52,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:25:52,444 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:25:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:25:52,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1791385099, now seen corresponding path program 1 times [2021-02-21 16:25:52,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:25:52,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139330892] [2021-02-21 16:25:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:25:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:52,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:52,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:52,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:52,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:52,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:25:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:52,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:52,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:52,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:25:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:52,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:52,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:52,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:52,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:25:52,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139330892] [2021-02-21 16:25:52,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:25:52,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:25:52,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180574988] [2021-02-21 16:25:52,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:25:52,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:25:52,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:25:52,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:25:52,794 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 4 states. [2021-02-21 16:25:53,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:25:53,476 INFO L93 Difference]: Finished difference Result 331 states and 501 transitions. [2021-02-21 16:25:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:25:53,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-02-21 16:25:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:25:53,491 INFO L225 Difference]: With dead ends: 331 [2021-02-21 16:25:53,492 INFO L226 Difference]: Without dead ends: 164 [2021-02-21 16:25:53,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:25:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-02-21 16:25:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2021-02-21 16:25:53,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-02-21 16:25:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2021-02-21 16:25:53,580 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 18 [2021-02-21 16:25:53,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:25:53,580 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2021-02-21 16:25:53,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:25:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2021-02-21 16:25:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-21 16:25:53,583 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:25:53,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:25:53,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:25:53,583 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:25:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:25:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 2112592059, now seen corresponding path program 1 times [2021-02-21 16:25:53,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:25:53,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496264788] [2021-02-21 16:25:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:25:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:53,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:53,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:53,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:53,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:53,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:53,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:25:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:53,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:25:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:53,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:53,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:53,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 16:25:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:54,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:54,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:54,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 16:25:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:54,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:54,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:54,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 16:25:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:54,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:54,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:25:54,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496264788] [2021-02-21 16:25:54,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:25:54,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 16:25:54,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783582770] [2021-02-21 16:25:54,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 16:25:54,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:25:54,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 16:25:54,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 16:25:54,073 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 9 states. [2021-02-21 16:25:55,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:25:55,526 INFO L93 Difference]: Finished difference Result 241 states and 289 transitions. [2021-02-21 16:25:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 16:25:55,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2021-02-21 16:25:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:25:55,530 INFO L225 Difference]: With dead ends: 241 [2021-02-21 16:25:55,531 INFO L226 Difference]: Without dead ends: 236 [2021-02-21 16:25:55,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-02-21 16:25:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-02-21 16:25:55,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2021-02-21 16:25:55,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-02-21 16:25:55,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 238 transitions. [2021-02-21 16:25:55,575 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 238 transitions. Word has length 37 [2021-02-21 16:25:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:25:55,576 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 238 transitions. [2021-02-21 16:25:55,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 16:25:55,576 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2021-02-21 16:25:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-21 16:25:55,577 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:25:55,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:25:55,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:25:55,578 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:25:55,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:25:55,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1799360915, now seen corresponding path program 1 times [2021-02-21 16:25:55,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:25:55,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380072337] [2021-02-21 16:25:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:25:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:25:55,763 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:25:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:25:55,949 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:25:56,013 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:25:56,013 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:25:56,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:25:56,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:25:56 BoogieIcfgContainer [2021-02-21 16:25:56,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:25:56,093 INFO L168 Benchmark]: Toolchain (without parser) took 5437.50 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 126.2 MB in the beginning and 80.3 MB in the end (delta: 46.0 MB). Peak memory consumption was 78.9 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:56,093 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:25:56,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.82 ms. Allocated memory is still 152.0 MB. Free memory was 125.0 MB in the beginning and 106.3 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:56,095 INFO L168 Benchmark]: Boogie Preprocessor took 151.88 ms. Allocated memory is still 152.0 MB. Free memory was 106.3 MB in the beginning and 102.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:56,096 INFO L168 Benchmark]: RCFGBuilder took 1027.52 ms. Allocated memory is still 152.0 MB. Free memory was 102.3 MB in the beginning and 74.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:56,097 INFO L168 Benchmark]: TraceAbstraction took 3751.72 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 73.9 MB in the beginning and 80.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:56,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 484.82 ms. Allocated memory is still 152.0 MB. Free memory was 125.0 MB in the beginning and 106.3 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.88 ms. Allocated memory is still 152.0 MB. Free memory was 106.3 MB in the beginning and 102.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1027.52 ms. Allocated memory is still 152.0 MB. Free memory was 102.3 MB in the beginning and 74.4 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3751.72 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 73.9 MB in the beginning and 80.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 27.1 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 16 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 1067 SDslu, 157 SDs, 0 SdLazy, 606 SolverSat, 339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 6874 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...