/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -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 0.2.2-dev-5d317bd [2022-03-18 11:39:02,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 11:39:02,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 11:39:02,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 11:39:02,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 11:39:02,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 11:39:02,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 11:39:02,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 11:39:02,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 11:39:02,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 11:39:02,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 11:39:02,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 11:39:02,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 11:39:02,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 11:39:02,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 11:39:02,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 11:39:02,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 11:39:02,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 11:39:02,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 11:39:02,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 11:39:02,783 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 11:39:02,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 11:39:02,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 11:39:02,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 11:39:02,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 11:39:02,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 11:39:02,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 11:39:02,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 11:39:02,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 11:39:02,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 11:39:02,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-18 11:39:02,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 11:39:02,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 11:39:02,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 11:39:02,802 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 [2022-03-18 11:39:02,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 11:39:02,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 11:39:02,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 11:39:02,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 11:39:02,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 11:39:02,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 11:39:02,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 11:39:02,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 11:39:02,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 11:39:02,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 11:39:02,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 11:39:02,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 11:39:02,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 11:39:02,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 11:39:02,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 11:39:02,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 11:39:02,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 11:39:02,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 11:39:03,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 11:39:03,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 11:39:03,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 11:39:03,018 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 11:39:03,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2022-03-18 11:39:03,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35040e012/1870ce8db06040fea2e0286d49f36d4f/FLAGc46a40396 [2022-03-18 11:39:03,458 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 11:39:03,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2022-03-18 11:39:03,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35040e012/1870ce8db06040fea2e0286d49f36d4f/FLAGc46a40396 [2022-03-18 11:39:03,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35040e012/1870ce8db06040fea2e0286d49f36d4f [2022-03-18 11:39:03,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 11:39:03,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 11:39:03,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 11:39:03,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 11:39:03,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 11:39:03,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec85c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03, skipping insertion in model container [2022-03-18 11:39:03,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 11:39:03,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 11:39:03,660 WARN L230 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] [2022-03-18 11:39:03,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 11:39:03,759 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 11:39:03,767 WARN L230 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] [2022-03-18 11:39:03,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 11:39:03,821 INFO L208 MainTranslator]: Completed translation [2022-03-18 11:39:03,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03 WrapperNode [2022-03-18 11:39:03,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 11:39:03,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 11:39:03,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 11:39:03,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 11:39:03,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 11:39:03,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 11:39:03,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 11:39:03,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 11:39:03,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (1/1) ... [2022-03-18 11:39:03,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 11:39:03,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 11:39:03,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 11:39:03,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 11:39:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 11:39:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 11:39:03,946 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2022-03-18 11:39:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2022-03-18 11:39:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2022-03-18 11:39:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2022-03-18 11:39:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-03-18 11:39:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2022-03-18 11:39:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2022-03-18 11:39:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 11:39:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 11:39:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 11:39:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-18 11:39:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-18 11:39:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 11:39:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2022-03-18 11:39:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 11:39:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 11:39:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-18 11:39:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 11:39:04,054 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 11:39:04,055 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 11:39:04,230 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2022-03-18 11:39:04,421 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 11:39:04,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 11:39:04,427 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2022-03-18 11:39:04,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 11:39:04 BoogieIcfgContainer [2022-03-18 11:39:04,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 11:39:04,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 11:39:04,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 11:39:04,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 11:39:04,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 11:39:03" (1/3) ... [2022-03-18 11:39:04,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fadf5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 11:39:04, skipping insertion in model container [2022-03-18 11:39:04,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 11:39:03" (2/3) ... [2022-03-18 11:39:04,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fadf5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 11:39:04, skipping insertion in model container [2022-03-18 11:39:04,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 11:39:04" (3/3) ... [2022-03-18 11:39:04,440 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2022-03-18 11:39:04,445 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 11:39:04,445 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 11:39:04,485 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 11:39:04,490 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 11:39:04,490 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 11:39:04,504 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) [2022-03-18 11:39:04,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-18 11:39:04,508 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 11:39:04,509 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 11:39:04,509 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 11:39:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 11:39:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1791385099, now seen corresponding path program 1 times [2022-03-18 11:39:04,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 11:39:04,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634277761] [2022-03-18 11:39:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 11:39:04,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 11:39:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 11:39:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 11:39:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 11:39:04,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 11:39:04,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634277761] [2022-03-18 11:39:04,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634277761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 11:39:04,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 11:39:04,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 11:39:04,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13079772] [2022-03-18 11:39:04,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 11:39:04,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 11:39:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 11:39:04,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 11:39:04,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 11:39:04,708 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) [2022-03-18 11:39:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 11:39:05,124 INFO L93 Difference]: Finished difference Result 331 states and 501 transitions. [2022-03-18 11:39:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 11:39:05,126 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 [2022-03-18 11:39:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 11:39:05,138 INFO L225 Difference]: With dead ends: 331 [2022-03-18 11:39:05,138 INFO L226 Difference]: Without dead ends: 164 [2022-03-18 11:39:05,146 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-18 11:39:05,149 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 255 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-18 11:39:05,149 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 142 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-18 11:39:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-18 11:39:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2022-03-18 11:39:05,189 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) [2022-03-18 11:39:05,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2022-03-18 11:39:05,192 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 18 [2022-03-18 11:39:05,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 11:39:05,192 INFO L478 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2022-03-18 11:39:05,192 INFO L479 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) [2022-03-18 11:39:05,193 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2022-03-18 11:39:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-03-18 11:39:05,194 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 11:39:05,194 INFO L500 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] [2022-03-18 11:39:05,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 11:39:05,194 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 11:39:05,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 11:39:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2112592059, now seen corresponding path program 1 times [2022-03-18 11:39:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 11:39:05,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393664349] [2022-03-18 11:39:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 11:39:05,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 11:39:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 11:39:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 11:39:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-18 11:39:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-18 11:39:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 11:39:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 11:39:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 11:39:05,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 11:39:05,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393664349] [2022-03-18 11:39:05,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393664349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 11:39:05,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 11:39:05,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-18 11:39:05,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856812187] [2022-03-18 11:39:05,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 11:39:05,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-18 11:39:05,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 11:39:05,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-18 11:39:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-03-18 11:39:05,542 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) [2022-03-18 11:39:06,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 11:39:06,247 INFO L93 Difference]: Finished difference Result 241 states and 289 transitions. [2022-03-18 11:39:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-18 11:39:06,248 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 [2022-03-18 11:39:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 11:39:06,249 INFO L225 Difference]: With dead ends: 241 [2022-03-18 11:39:06,249 INFO L226 Difference]: Without dead ends: 236 [2022-03-18 11:39:06,250 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-03-18 11:39:06,251 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 668 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-18 11:39:06,251 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 134 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-18 11:39:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-03-18 11:39:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2022-03-18 11:39:06,286 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) [2022-03-18 11:39:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 238 transitions. [2022-03-18 11:39:06,288 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 238 transitions. Word has length 37 [2022-03-18 11:39:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 11:39:06,288 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 238 transitions. [2022-03-18 11:39:06,289 INFO L479 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) [2022-03-18 11:39:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2022-03-18 11:39:06,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-18 11:39:06,290 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 11:39:06,290 INFO L500 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] [2022-03-18 11:39:06,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 11:39:06,290 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 11:39:06,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 11:39:06,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1799360915, now seen corresponding path program 1 times [2022-03-18 11:39:06,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 11:39:06,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814374015] [2022-03-18 11:39:06,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 11:39:06,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 11:39:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-18 11:39:06,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-18 11:39:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-18 11:39:06,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-18 11:39:06,545 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-18 11:39:06,546 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 11:39:06,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 11:39:06,549 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-18 11:39:06,552 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 11:39:06,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 11:39:06 BoogieIcfgContainer [2022-03-18 11:39:06,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 11:39:06,602 INFO L158 Benchmark]: Toolchain (without parser) took 3127.30ms. Allocated memory was 194.0MB in the beginning and 281.0MB in the end (delta: 87.0MB). Free memory was 135.6MB in the beginning and 228.0MB in the end (delta: -92.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 11:39:06,603 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 11:39:06,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.43ms. Allocated memory was 194.0MB in the beginning and 281.0MB in the end (delta: 87.0MB). Free memory was 135.3MB in the beginning and 244.0MB in the end (delta: -108.6MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-03-18 11:39:06,606 INFO L158 Benchmark]: Boogie Preprocessor took 59.92ms. Allocated memory is still 281.0MB. Free memory was 244.0MB in the beginning and 239.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-03-18 11:39:06,606 INFO L158 Benchmark]: RCFGBuilder took 546.03ms. Allocated memory is still 281.0MB. Free memory was 239.7MB in the beginning and 208.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-03-18 11:39:06,606 INFO L158 Benchmark]: TraceAbstraction took 2167.81ms. Allocated memory is still 281.0MB. Free memory was 207.8MB in the beginning and 228.0MB in the end (delta: -20.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 11:39:06,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 345.43ms. Allocated memory was 194.0MB in the beginning and 281.0MB in the end (delta: 87.0MB). Free memory was 135.3MB in the beginning and 244.0MB in the end (delta: -108.6MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.92ms. Allocated memory is still 281.0MB. Free memory was 244.0MB in the beginning and 239.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 546.03ms. Allocated memory is still 281.0MB. Free memory was 239.7MB in the beginning and 208.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2167.81ms. Allocated memory is still 281.0MB. Free memory was 207.8MB in the beginning and 228.0MB in the end (delta: -20.2MB). There was no memory consumed. Max. memory is 8.0GB. * 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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={5:0}] [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; VAL [gl_list={5:0}] [L839] CALL gl_read() VAL [gl_list={5:0}] [L676] int tmp ; [L677] int tmp___0 ; VAL [gl_list={5:0}] [L680] COND TRUE 1 VAL [gl_list={5:0}] [L683] tmp = __VERIFIER_nondet_int() [L684] CALL gl_insert(tmp) VAL [\old(value)=0, gl_list={5:0}] [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)=0, __cil_tmp4=20, gl_list={5:0}, node={4294967297:0}, tmp={4294967297:0}, value=0] [L642] COND FALSE !(! node) VAL [\old(value)=0, __cil_tmp4=20, gl_list={5:0}, node={4294967297:0}, tmp={4294967297:0}, value=0] [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)=0, __cil_tmp4=20, __cil_tmp5=1, __cil_tmp6=5, __cil_tmp7={0:5}, gl_list={5:0}, node={4294967297:0}, tmp={4294967297:0}, value=0] [L653] CALL list_add(__cil_tmp7, & gl_list) VAL [gl_list={5:0}, head={5:0}, new={0:5}] [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={5:0}, new={0:5}, next={5:0}, prev={5:0}] [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=5, __cil_tmp5=9, __cil_tmp6=5, __cil_tmp7=9, gl_list={5:0}, new={0:5}, new={0:5}, next={5:0}, next={5:0}, prev={5:0}, prev={5:0}] [L599] RET __list_add(new, head, __cil_tmp3) VAL [__cil_tmp3={5:0}, gl_list={5:0}, head={5:0}, head={5:0}, new={0:5}, new={0:5}] [L653] RET list_add(__cil_tmp7, & gl_list) VAL [\old(value)=0, __cil_tmp4=20, __cil_tmp5=1, __cil_tmp6=5, __cil_tmp7={0:5}, gl_list={5:0}, node={4294967297:0}, tmp={4294967297:0}, value=0] [L656] COND TRUE 1 VAL [\old(value)=0, __cil_tmp4=20, __cil_tmp5=1, __cil_tmp6=5, __cil_tmp7={0:5}, gl_list={5:0}, node={4294967297:0}, tmp={4294967297:0}, value=0] [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)=0, __cil_tmp10=1, __cil_tmp11=13, __cil_tmp12=1, __cil_tmp13=13, __cil_tmp14=1, __cil_tmp15=13, __cil_tmp4=20, __cil_tmp5=1, __cil_tmp6=5, __cil_tmp7={0:5}, __cil_tmp8=1, __cil_tmp9=13, gl_list={5:0}, node={4294967297:0}, tmp={4294967297:0}, value=0] [L684] RET gl_insert(tmp) VAL [gl_list={5:0}, tmp=0] [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) VAL [gl_list={5:0}, tmp=0, tmp___0=0] [L839] RET gl_read() VAL [gl_list={5:0}] [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) VAL [__cil_tmp1={5:0}, gl_list={5:0}] [L841] CALL inspect(__cil_tmp1) VAL [gl_list={5:0}, head={5:0}] [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={5:0}, head={5:0}, head={5:0}] [L179] COND TRUE 1 VAL [gl_list={5:0}, head={5:0}, head={5:0}] [L181] COND FALSE !(! head) VAL [gl_list={5:0}, head={5:0}, head={5:0}] [L192] COND TRUE 1 VAL [gl_list={5:0}, head={5:0}, head={5:0}] [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=5, __cil_tmp4={0:5}, __cil_tmp5=5, __cil_tmp6=0, gl_list={5:0}, head={5:0}, head={5:0}] [L199] COND TRUE ! __cil_tmp6 VAL [__cil_tmp3=5, __cil_tmp4={0:5}, __cil_tmp5=5, __cil_tmp6=0, gl_list={5:0}, head={5:0}, head={5:0}] [L201] CALL fail() VAL [gl_list={5:0}] [L46] reach_error() VAL [gl_list={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 937 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 923 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 306 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 760 IncrementalHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 306 mSolverCounterUnsat, 267 mSDtfsCounter, 760 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 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! [2022-03-18 11:39:06,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...