./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:06:02,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:06:02,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:06:02,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:06:02,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:06:02,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:06:02,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:06:02,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:06:02,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:06:02,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:06:02,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:06:02,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:06:02,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:06:02,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:06:02,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:06:02,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:06:02,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:06:02,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:06:02,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:06:02,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:06:02,713 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:06:02,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:06:02,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:06:02,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:06:02,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:06:02,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:06:02,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:06:02,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:06:02,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:06:02,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:06:02,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:06:02,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:06:02,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:06:02,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:06:02,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:06:02,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:06:02,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:06:02,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:06:02,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:06:02,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:06:02,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:06:02,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:06:02,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-14 07:06:02,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:06:02,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:06:02,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:06:02,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:06:02,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:06:02,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:06:02,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:06:02,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:06:02,774 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:06:02,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:06:02,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:06:02,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:06:02,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:06:02,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:06:02,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:06:02,776 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:06:02,776 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:06:02,776 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:06:02,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:06:02,777 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:06:02,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:06:02,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:06:02,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:06:02,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:06:02,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:06:02,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:06:02,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:06:02,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:06:02,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 07:06:02,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 07:06:02,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2022-07-14 07:06:03,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:06:03,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:06:03,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:06:03,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:06:03,041 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:06:03,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2022-07-14 07:06:03,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a6a4e21/cad06530954743f890cde18060c49a55/FLAG6eebfbca0 [2022-07-14 07:06:03,465 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:06:03,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2022-07-14 07:06:03,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a6a4e21/cad06530954743f890cde18060c49a55/FLAG6eebfbca0 [2022-07-14 07:06:03,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a6a4e21/cad06530954743f890cde18060c49a55 [2022-07-14 07:06:03,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:06:03,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:06:03,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:06:03,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:06:03,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:06:03,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18239c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03, skipping insertion in model container [2022-07-14 07:06:03,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:06:03,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:06:03,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-07-14 07:06:03,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:06:03,699 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:06:03,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-07-14 07:06:03,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:06:03,742 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:06:03,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03 WrapperNode [2022-07-14 07:06:03,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:06:03,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:06:03,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:06:03,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:06:03,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,790 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 184 [2022-07-14 07:06:03,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:06:03,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:06:03,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:06:03,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:06:03,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:06:03,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:06:03,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:06:03,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:06:03,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (1/1) ... [2022-07-14 07:06:03,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:06:03,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:06:03,880 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) [2022-07-14 07:06:03,911 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 [2022-07-14 07:06:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:06:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:06:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:06:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 07:06:03,978 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:06:03,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:06:04,146 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:06:04,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:06:04,152 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:06:04,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:04 BoogieIcfgContainer [2022-07-14 07:06:04,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:06:04,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:06:04,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:06:04,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:06:04,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:06:03" (1/3) ... [2022-07-14 07:06:04,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f9d381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:06:04, skipping insertion in model container [2022-07-14 07:06:04,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:03" (2/3) ... [2022-07-14 07:06:04,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f9d381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:06:04, skipping insertion in model container [2022-07-14 07:06:04,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:04" (3/3) ... [2022-07-14 07:06:04,161 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2022-07-14 07:06:04,197 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:06:04,197 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:06:04,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:06:04,253 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d611c84, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@100ddc78 [2022-07-14 07:06:04,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:06:04,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 07:06:04,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:04,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 07:06:04,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:04,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2022-07-14 07:06:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:04,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287360108] [2022-07-14 07:06:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:04,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:04,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:04,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287360108] [2022-07-14 07:06:04,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287360108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:04,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:04,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:06:04,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953064535] [2022-07-14 07:06:04,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:04,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 07:06:04,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:04,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 07:06:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 07:06:04,481 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:04,502 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2022-07-14 07:06:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 07:06:04,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 07:06:04,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:04,515 INFO L225 Difference]: With dead ends: 53 [2022-07-14 07:06:04,516 INFO L226 Difference]: Without dead ends: 51 [2022-07-14 07:06:04,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 07:06:04,522 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:04,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:04,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-14 07:06:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-14 07:06:04,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2022-07-14 07:06:04,559 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2022-07-14 07:06:04,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:04,560 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2022-07-14 07:06:04,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,561 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2022-07-14 07:06:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 07:06:04,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:04,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 07:06:04,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 07:06:04,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:04,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2022-07-14 07:06:04,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:04,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183377590] [2022-07-14 07:06:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:04,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:04,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183377590] [2022-07-14 07:06:04,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183377590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:04,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:04,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:06:04,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726034328] [2022-07-14 07:06:04,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:04,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:04,667 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:04,684 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2022-07-14 07:06:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:04,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 07:06:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:04,686 INFO L225 Difference]: With dead ends: 50 [2022-07-14 07:06:04,686 INFO L226 Difference]: Without dead ends: 48 [2022-07-14 07:06:04,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:04,688 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:04,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:04,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-07-14 07:06:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-07-14 07:06:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2022-07-14 07:06:04,699 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2022-07-14 07:06:04,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:04,700 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2022-07-14 07:06:04,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,700 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2022-07-14 07:06:04,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:04,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:04,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:04,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 07:06:04,702 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:04,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:04,702 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2022-07-14 07:06:04,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:04,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219792886] [2022-07-14 07:06:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:04,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:04,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219792886] [2022-07-14 07:06:04,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219792886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:04,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:04,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:04,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661001773] [2022-07-14 07:06:04,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:04,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:04,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:04,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:04,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:04,768 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:04,806 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2022-07-14 07:06:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:04,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:04,814 INFO L225 Difference]: With dead ends: 93 [2022-07-14 07:06:04,815 INFO L226 Difference]: Without dead ends: 93 [2022-07-14 07:06:04,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:04,817 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:04,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-14 07:06:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2022-07-14 07:06:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2022-07-14 07:06:04,833 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2022-07-14 07:06:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:04,834 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2022-07-14 07:06:04,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,835 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2022-07-14 07:06:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:04,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:04,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:04,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 07:06:04,837 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:04,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2022-07-14 07:06:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:04,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657298854] [2022-07-14 07:06:04,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:04,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:04,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:04,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657298854] [2022-07-14 07:06:04,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657298854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:04,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:04,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:04,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296930644] [2022-07-14 07:06:04,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:04,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:04,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:04,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:04,932 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:04,962 INFO L93 Difference]: Finished difference Result 94 states and 173 transitions. [2022-07-14 07:06:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:04,964 INFO L225 Difference]: With dead ends: 94 [2022-07-14 07:06:04,965 INFO L226 Difference]: Without dead ends: 94 [2022-07-14 07:06:04,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:04,967 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:04,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-14 07:06:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-07-14 07:06:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2022-07-14 07:06:04,986 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2022-07-14 07:06:04,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:04,987 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2022-07-14 07:06:04,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2022-07-14 07:06:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:04,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:04,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:04,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 07:06:04,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:04,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2022-07-14 07:06:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:04,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991130561] [2022-07-14 07:06:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:04,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:05,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:05,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991130561] [2022-07-14 07:06:05,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991130561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:05,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:05,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14368056] [2022-07-14 07:06:05,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:05,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:05,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:05,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:05,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:05,053 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:05,072 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2022-07-14 07:06:05,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:05,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:05,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:05,075 INFO L225 Difference]: With dead ends: 96 [2022-07-14 07:06:05,075 INFO L226 Difference]: Without dead ends: 96 [2022-07-14 07:06:05,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:05,077 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:05,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-14 07:06:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-07-14 07:06:05,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:05,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2022-07-14 07:06:05,088 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2022-07-14 07:06:05,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:05,088 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2022-07-14 07:06:05,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2022-07-14 07:06:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:05,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:05,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:05,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 07:06:05,093 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:05,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2022-07-14 07:06:05,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:05,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045988485] [2022-07-14 07:06:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:05,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:05,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:06:05,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045988485] [2022-07-14 07:06:05,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045988485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:05,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:05,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:05,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324108274] [2022-07-14 07:06:05,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:05,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:05,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:06:05,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:05,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:05,148 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:05,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:05,164 INFO L93 Difference]: Finished difference Result 127 states and 228 transitions. [2022-07-14 07:06:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:05,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:05,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:05,166 INFO L225 Difference]: With dead ends: 127 [2022-07-14 07:06:05,166 INFO L226 Difference]: Without dead ends: 127 [2022-07-14 07:06:05,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:05,168 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:05,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:05,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-07-14 07:06:05,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-07-14 07:06:05,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2022-07-14 07:06:05,182 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2022-07-14 07:06:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:05,182 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2022-07-14 07:06:05,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2022-07-14 07:06:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:05,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:05,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:05,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 07:06:05,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2022-07-14 07:06:05,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:06:05,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685534156] [2022-07-14 07:06:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:06:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:06:05,207 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 07:06:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:06:05,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 07:06:05,248 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 07:06:05,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-14 07:06:05,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-14 07:06:05,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 07:06:05,254 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:05,263 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 07:06:05,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:06:05 BoogieIcfgContainer [2022-07-14 07:06:05,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 07:06:05,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 07:06:05,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 07:06:05,315 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 07:06:05,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:04" (3/4) ... [2022-07-14 07:06:05,318 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 07:06:05,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 07:06:05,318 INFO L158 Benchmark]: Toolchain (without parser) took 1826.86ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 59.6MB in the end (delta: -531.9kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-07-14 07:06:05,318 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:05,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.39ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 67.0MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 07:06:05,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.50ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 65.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 07:06:05,319 INFO L158 Benchmark]: Boogie Preprocessor took 45.26ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 63.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:05,320 INFO L158 Benchmark]: RCFGBuilder took 316.43ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 48.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-14 07:06:05,320 INFO L158 Benchmark]: TraceAbstraction took 1159.02ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 59.6MB in the end (delta: -11.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-07-14 07:06:05,320 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 111.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:05,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.39ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 67.0MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.50ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 65.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.26ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 63.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.43ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 48.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1159.02ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 59.6MB in the end (delta: -11.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 111.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L96] COND FALSE !(p3 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L128] COND FALSE !(p11 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L219] reach_error() VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 624 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 could not prove your program: unable to determine feasibility of some traces [2022-07-14 07:06:05,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:06:07,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:06:07,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:06:07,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:06:07,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:06:07,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:06:07,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:06:07,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:06:07,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:06:07,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:06:07,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:06:07,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:06:07,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:06:07,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:06:07,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:06:07,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:06:07,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:06:07,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:06:07,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:06:07,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:06:07,351 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:06:07,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:06:07,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:06:07,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:06:07,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:06:07,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:06:07,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:06:07,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:06:07,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:06:07,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:06:07,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:06:07,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:06:07,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:06:07,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:06:07,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:06:07,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:06:07,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:06:07,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:06:07,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:06:07,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:06:07,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:06:07,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:06:07,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-14 07:06:07,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:06:07,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:06:07,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:06:07,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:06:07,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:06:07,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:06:07,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:06:07,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:06:07,407 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:06:07,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:06:07,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:06:07,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:06:07,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:06:07,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:06:07,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:06:07,409 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:06:07,410 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:06:07,410 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:06:07,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:06:07,410 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:06:07,410 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 07:06:07,410 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 07:06:07,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:06:07,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:06:07,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:06:07,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:06:07,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:06:07,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:06:07,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:06:07,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:06:07,412 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 07:06:07,413 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 07:06:07,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 07:06:07,413 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2022-07-14 07:06:07,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:06:07,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:06:07,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:06:07,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:06:07,751 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:06:07,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2022-07-14 07:06:07,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ddacbee/8fad17036b4244d892e810bbbbfb1786/FLAGef3e5fbff [2022-07-14 07:06:08,254 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:06:08,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2022-07-14 07:06:08,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ddacbee/8fad17036b4244d892e810bbbbfb1786/FLAGef3e5fbff [2022-07-14 07:06:08,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ddacbee/8fad17036b4244d892e810bbbbfb1786 [2022-07-14 07:06:08,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:06:08,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:06:08,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:06:08,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:06:08,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:06:08,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2781617f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08, skipping insertion in model container [2022-07-14 07:06:08,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:06:08,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:06:08,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-07-14 07:06:08,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:06:08,443 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:06:08,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-07-14 07:06:08,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:06:08,509 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:06:08,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08 WrapperNode [2022-07-14 07:06:08,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:06:08,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:06:08,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:06:08,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:06:08,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,539 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 169 [2022-07-14 07:06:08,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:06:08,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:06:08,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:06:08,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:06:08,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:06:08,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:06:08,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:06:08,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:06:08,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (1/1) ... [2022-07-14 07:06:08,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:06:08,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:06:08,607 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) [2022-07-14 07:06:08,619 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 [2022-07-14 07:06:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:06:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:06:08,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:06:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 07:06:08,703 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:06:08,704 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:06:08,947 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:06:08,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:06:08,953 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:06:08,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:08 BoogieIcfgContainer [2022-07-14 07:06:08,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:06:08,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:06:08,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:06:08,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:06:08,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:06:08" (1/3) ... [2022-07-14 07:06:08,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:06:08, skipping insertion in model container [2022-07-14 07:06:08,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:06:08" (2/3) ... [2022-07-14 07:06:08,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:06:08, skipping insertion in model container [2022-07-14 07:06:08,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:08" (3/3) ... [2022-07-14 07:06:08,961 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2022-07-14 07:06:08,973 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:06:08,983 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:06:09,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:06:09,047 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2d3c63f6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c6d5d49 [2022-07-14 07:06:09,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:06:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 07:06:09,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 07:06:09,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2022-07-14 07:06:09,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:09,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424740350] [2022-07-14 07:06:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:09,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:09,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:09,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 07:06:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:09,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-14 07:06:09,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:09,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:09,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:09,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424740350] [2022-07-14 07:06:09,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424740350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:09,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:09,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:06:09,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378993581] [2022-07-14 07:06:09,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:09,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 07:06:09,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:09,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 07:06:09,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 07:06:09,225 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:09,248 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2022-07-14 07:06:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 07:06:09,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 07:06:09,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:09,259 INFO L225 Difference]: With dead ends: 53 [2022-07-14 07:06:09,259 INFO L226 Difference]: Without dead ends: 51 [2022-07-14 07:06:09,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 07:06:09,264 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:09,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:09,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-14 07:06:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-14 07:06:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2022-07-14 07:06:09,315 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2022-07-14 07:06:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:09,316 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2022-07-14 07:06:09,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2022-07-14 07:06:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 07:06:09,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 07:06:09,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:09,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:09,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:09,532 INFO L85 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2022-07-14 07:06:09,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:09,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093262767] [2022-07-14 07:06:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:09,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:09,535 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:09,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 07:06:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:09,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:09,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:09,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:09,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093262767] [2022-07-14 07:06:09,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093262767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:09,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:09,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:06:09,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024447899] [2022-07-14 07:06:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:09,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:09,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:09,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:09,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:09,587 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:09,599 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2022-07-14 07:06:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:09,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 07:06:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:09,602 INFO L225 Difference]: With dead ends: 50 [2022-07-14 07:06:09,602 INFO L226 Difference]: Without dead ends: 48 [2022-07-14 07:06:09,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:09,604 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:09,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:09,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-07-14 07:06:09,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-07-14 07:06:09,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2022-07-14 07:06:09,622 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2022-07-14 07:06:09,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:09,622 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2022-07-14 07:06:09,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,625 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2022-07-14 07:06:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:09,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:09,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:09,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:09,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:09,836 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2022-07-14 07:06:09,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:09,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816554272] [2022-07-14 07:06:09,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:09,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:09,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:09,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 07:06:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:09,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:09,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:09,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:09,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:09,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816554272] [2022-07-14 07:06:09,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816554272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:09,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:09,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:09,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963339609] [2022-07-14 07:06:09,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:09,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:09,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:09,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:09,924 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:09,948 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2022-07-14 07:06:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:09,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:09,949 INFO L225 Difference]: With dead ends: 93 [2022-07-14 07:06:09,949 INFO L226 Difference]: Without dead ends: 93 [2022-07-14 07:06:09,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:09,950 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:09,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:09,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-14 07:06:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2022-07-14 07:06:09,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2022-07-14 07:06:09,955 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2022-07-14 07:06:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:09,955 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2022-07-14 07:06:09,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2022-07-14 07:06:09,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:09,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:09,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:10,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,166 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:10,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:10,166 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2022-07-14 07:06:10,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:10,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444883137] [2022-07-14 07:06:10,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:10,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:10,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:10,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 07:06:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:10,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:10,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:10,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:10,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:10,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444883137] [2022-07-14 07:06:10,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444883137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:10,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:10,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:10,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693028643] [2022-07-14 07:06:10,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:10,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:10,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:10,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:10,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:10,254 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:10,270 INFO L93 Difference]: Finished difference Result 94 states and 173 transitions. [2022-07-14 07:06:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:10,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:10,271 INFO L225 Difference]: With dead ends: 94 [2022-07-14 07:06:10,272 INFO L226 Difference]: Without dead ends: 94 [2022-07-14 07:06:10,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:10,273 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:10,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:10,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-14 07:06:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-07-14 07:06:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2022-07-14 07:06:10,281 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2022-07-14 07:06:10,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:10,282 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2022-07-14 07:06:10,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2022-07-14 07:06:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:10,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:10,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:10,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:10,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:10,492 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2022-07-14 07:06:10,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:10,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598297284] [2022-07-14 07:06:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:10,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:10,494 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:10,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 07:06:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:10,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:10,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:10,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:10,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:10,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598297284] [2022-07-14 07:06:10,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598297284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:10,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:10,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:10,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727837262] [2022-07-14 07:06:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:10,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:10,598 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:10,610 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2022-07-14 07:06:10,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:10,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:10,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:10,611 INFO L225 Difference]: With dead ends: 96 [2022-07-14 07:06:10,612 INFO L226 Difference]: Without dead ends: 96 [2022-07-14 07:06:10,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:10,613 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:10,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-14 07:06:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-07-14 07:06:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2022-07-14 07:06:10,620 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2022-07-14 07:06:10,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:10,621 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2022-07-14 07:06:10,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,621 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2022-07-14 07:06:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:10,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:10,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:10,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:10,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,830 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:10,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:10,831 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2022-07-14 07:06:10,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:10,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620344218] [2022-07-14 07:06:10,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:10,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:10,833 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:10,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 07:06:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:10,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:10,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:10,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:10,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:10,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620344218] [2022-07-14 07:06:10,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620344218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:10,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:10,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:10,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051551350] [2022-07-14 07:06:10,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:10,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:10,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:10,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:10,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:10,893 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:10,906 INFO L93 Difference]: Finished difference Result 127 states and 228 transitions. [2022-07-14 07:06:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:10,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:06:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:10,907 INFO L225 Difference]: With dead ends: 127 [2022-07-14 07:06:10,908 INFO L226 Difference]: Without dead ends: 127 [2022-07-14 07:06:10,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:10,909 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:10,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:10,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-07-14 07:06:10,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-07-14 07:06:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2022-07-14 07:06:10,918 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2022-07-14 07:06:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:10,919 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2022-07-14 07:06:10,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:06:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2022-07-14 07:06:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:06:10,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:10,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:10,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:11,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,129 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:11,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2022-07-14 07:06:11,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:11,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678343775] [2022-07-14 07:06:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:11,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:11,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:11,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 07:06:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:06:11,184 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 07:06:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:06:11,234 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-14 07:06:11,235 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 07:06:11,236 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-14 07:06:11,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-14 07:06:11,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:11,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,448 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:11,451 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 07:06:11,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:06:11 BoogieIcfgContainer [2022-07-14 07:06:11,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 07:06:11,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 07:06:11,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 07:06:11,516 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 07:06:11,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:06:08" (3/4) ... [2022-07-14 07:06:11,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 07:06:11,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 07:06:11,521 INFO L158 Benchmark]: Toolchain (without parser) took 3239.52ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 43.8MB in the end (delta: -8.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 07:06:11,522 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.9MB in the end (delta: 50.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:11,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.27ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 39.1MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 07:06:11,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.24ms. Allocated memory is still 56.6MB. Free memory was 39.1MB in the beginning and 37.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:11,525 INFO L158 Benchmark]: Boogie Preprocessor took 20.53ms. Allocated memory is still 56.6MB. Free memory was 37.2MB in the beginning and 35.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 07:06:11,526 INFO L158 Benchmark]: RCFGBuilder took 392.57ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 48.2MB in the end (delta: -12.6MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-07-14 07:06:11,526 INFO L158 Benchmark]: TraceAbstraction took 2559.06ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 44.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-07-14 07:06:11,527 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 69.2MB. Free memory was 44.2MB in the beginning and 43.8MB in the end (delta: 400.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:11,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.9MB in the end (delta: 50.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.27ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 39.1MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.24ms. Allocated memory is still 56.6MB. Free memory was 39.1MB in the beginning and 37.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.53ms. Allocated memory is still 56.6MB. Free memory was 37.2MB in the beginning and 35.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.57ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 48.2MB in the end (delta: -12.6MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2559.06ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 44.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 69.2MB. Free memory was 44.2MB in the beginning and 43.8MB in the end (delta: 400.8kB). There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L88] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L92] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L96] COND FALSE !(p3 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L128] COND FALSE !(p11 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L146] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L151] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L219] reach_error() VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 624 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 could not prove your program: unable to determine feasibility of some traces [2022-07-14 07:06:11,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample