./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg --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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg --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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:07:12,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:07:12,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:07:12,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:07:12,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:07:12,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:07:12,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:07:12,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:07:12,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:07:12,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:07:12,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:07:12,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:07:12,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:07:12,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:07:12,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:07:12,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:07:12,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:07:12,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:07:12,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:07:12,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:07:12,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:07:12,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:07:12,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:07:12,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:07:12,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:07:12,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:07:12,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:07:12,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:07:12,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:07:12,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:07:12,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:07:12,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:07:12,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:07:12,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:07:12,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:07:12,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:07:12,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:07:12,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:07:12,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:07:12,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:07:12,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:07:12,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:07:12,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:07:12,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:07:12,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:07:12,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:07:12,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:07:12,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:07:12,519 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:07:12,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:07:12,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:07:12,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:07:12,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:07:12,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:07:12,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:07:12,521 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:07:12,521 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:07:12,521 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:07:12,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:07:12,521 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:07:12,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:07:12,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:07:12,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:07:12,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:07:12,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:07:12,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:07:12,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:07:12,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:07:12,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:07:12,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:07:12,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:07:12,524 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2021-10-28 09:07:12,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:07:12,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:07:12,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:07:12,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:07:12,946 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:07:12,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 09:07:13,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/fcd82116e/beae87ea40f14ab78ac2838cd080ae0e/FLAG5b90ab12c [2021-10-28 09:07:13,767 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:07:13,768 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 09:07:13,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/fcd82116e/beae87ea40f14ab78ac2838cd080ae0e/FLAG5b90ab12c [2021-10-28 09:07:13,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/fcd82116e/beae87ea40f14ab78ac2838cd080ae0e [2021-10-28 09:07:14,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:07:14,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:07:14,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:07:14,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:07:14,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:07:14,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe221f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14, skipping insertion in model container [2021-10-28 09:07:14,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:07:14,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:07:14,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:07:14,488 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:07:14,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:07:14,574 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:07:14,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14 WrapperNode [2021-10-28 09:07:14,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:07:14,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:07:14,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:07:14,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:07:14,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:07:14,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:07:14,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:07:14,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:07:14,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (1/1) ... [2021-10-28 09:07:14,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:07:14,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:07:14,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:07:14,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:07:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:07:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:07:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:07:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:07:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:07:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:07:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:07:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:07:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:07:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:07:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:07:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 09:07:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 09:07:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:07:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:07:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:07:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:07:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:07:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:07:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:07:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:07:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:07:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:07:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:07:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:07:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:07:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:07:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:07:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:07:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:07:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:07:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:07:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:07:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:07:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:07:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:07:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:07:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:07:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:07:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:07:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:07:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:07:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:07:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:07:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:07:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:07:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:07:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:07:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:07:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:07:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:07:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:07:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:07:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:07:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:07:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:07:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:07:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:07:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:07:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:07:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:07:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:07:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:07:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:07:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:07:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:07:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:07:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:07:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:07:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:07:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:07:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:07:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:07:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:07:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:07:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:07:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:07:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:07:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:07:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:07:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:07:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:07:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:07:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:07:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:07:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:07:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:07:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:07:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:07:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:07:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:07:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:07:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:07:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:07:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:07:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:07:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:07:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:07:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:07:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:07:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:07:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:07:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:07:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:07:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:07:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:07:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:07:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:07:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:07:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:07:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:07:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:07:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:07:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:07:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:07:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:07:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:07:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:07:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:07:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:07:15,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:07:15,352 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 09:07:15,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:07:15 BoogieIcfgContainer [2021-10-28 09:07:15,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:07:15,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:07:15,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:07:15,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:07:15,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:07:14" (1/3) ... [2021-10-28 09:07:15,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3243130b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:07:15, skipping insertion in model container [2021-10-28 09:07:15,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:14" (2/3) ... [2021-10-28 09:07:15,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3243130b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:07:15, skipping insertion in model container [2021-10-28 09:07:15,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:07:15" (3/3) ... [2021-10-28 09:07:15,367 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-28 09:07:15,374 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:07:15,374 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-28 09:07:15,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:07:15,437 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:07:15,438 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-28 09:07:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:07:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:07:15,467 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:15,468 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:15,468 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1484797383, now seen corresponding path program 1 times [2021-10-28 09:07:15,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:07:15,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304033351] [2021-10-28 09:07:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:15,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:07:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:07:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:15,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:07:15,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304033351] [2021-10-28 09:07:15,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304033351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:07:15,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:07:15,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:07:15,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414374337] [2021-10-28 09:07:15,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:07:15,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:07:15,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:07:15,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:07:15,866 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:07:15,959 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-28 09:07:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:07:15,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 09:07:15,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:07:15,996 INFO L225 Difference]: With dead ends: 25 [2021-10-28 09:07:15,996 INFO L226 Difference]: Without dead ends: 22 [2021-10-28 09:07:15,998 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:07:16,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-28 09:07:16,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-28 09:07:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-28 09:07:16,037 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2021-10-28 09:07:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:07:16,037 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-28 09:07:16,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-28 09:07:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:07:16,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:16,039 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:16,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:07:16,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1484797382, now seen corresponding path program 1 times [2021-10-28 09:07:16,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:07:16,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510132192] [2021-10-28 09:07:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:16,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:07:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:07:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:16,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:07:16,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510132192] [2021-10-28 09:07:16,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510132192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:07:16,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:07:16,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:07:16,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370289450] [2021-10-28 09:07:16,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:07:16,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:07:16,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:07:16,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:07:16,211 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:07:16,279 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-28 09:07:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:07:16,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 09:07:16,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:07:16,282 INFO L225 Difference]: With dead ends: 17 [2021-10-28 09:07:16,282 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 09:07:16,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:07:16,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 09:07:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 09:07:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 09:07:16,289 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-28 09:07:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:07:16,289 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 09:07:16,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 09:07:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:07:16,291 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:16,292 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:16,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:07:16,293 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash 910104040, now seen corresponding path program 1 times [2021-10-28 09:07:16,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:07:16,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412586264] [2021-10-28 09:07:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:16,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:07:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:07:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:16,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:07:16,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412586264] [2021-10-28 09:07:16,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412586264] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:07:16,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:07:16,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:07:16,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025466949] [2021-10-28 09:07:16,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:07:16,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:07:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:07:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:07:16,473 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:07:16,576 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-28 09:07:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:07:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-10-28 09:07:16,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:07:16,584 INFO L225 Difference]: With dead ends: 21 [2021-10-28 09:07:16,584 INFO L226 Difference]: Without dead ends: 21 [2021-10-28 09:07:16,584 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:07:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-28 09:07:16,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-28 09:07:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-28 09:07:16,589 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2021-10-28 09:07:16,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:07:16,590 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-28 09:07:16,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-28 09:07:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:07:16,591 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:16,591 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:16,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:07:16,592 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:16,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:16,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1057867400, now seen corresponding path program 1 times [2021-10-28 09:07:16,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:07:16,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896464790] [2021-10-28 09:07:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:16,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:07:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:07:16,665 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:07:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:07:16,760 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:07:16,760 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:07:16,761 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:07:16,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 09:07:16,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 09:07:16,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 09:07:16,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 09:07:16,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 09:07:16,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 09:07:16,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 09:07:16,766 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 09:07:16,766 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 09:07:16,766 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 09:07:16,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:07:16,774 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 09:07:16,778 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:07:16,800 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:07:16,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:07:16 BoogieIcfgContainer [2021-10-28 09:07:16,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:07:16,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:07:16,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:07:16,818 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:07:16,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:07:15" (3/4) ... [2021-10-28 09:07:16,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:07:16,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:07:16,826 INFO L168 Benchmark]: Toolchain (without parser) took 2817.28 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 62.9 MB in the beginning and 87.0 MB in the end (delta: -24.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:16,826 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:07:16,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.82 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 62.7 MB in the beginning and 112.4 MB in the end (delta: -49.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:16,830 INFO L168 Benchmark]: Boogie Preprocessor took 85.11 ms. Allocated memory is still 142.6 MB. Free memory was 112.4 MB in the beginning and 110.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:16,832 INFO L168 Benchmark]: RCFGBuilder took 693.26 ms. Allocated memory is still 142.6 MB. Free memory was 110.2 MB in the beginning and 91.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:16,838 INFO L168 Benchmark]: TraceAbstraction took 1458.68 ms. Allocated memory is still 142.6 MB. Free memory was 90.5 MB in the beginning and 87.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:16,839 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 142.6 MB. Free memory is still 87.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:07:16,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 562.82 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 62.7 MB in the beginning and 112.4 MB in the end (delta: -49.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.11 ms. Allocated memory is still 142.6 MB. Free memory was 112.4 MB in the beginning and 110.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 693.26 ms. Allocated memory is still 142.6 MB. Free memory was 110.2 MB in the beginning and 91.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1458.68 ms. Allocated memory is still 142.6 MB. Free memory was 90.5 MB in the beginning and 87.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.18 ms. Allocated memory is still 142.6 MB. Free memory is still 87.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * 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: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 48 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2021-10-28 09:07:16,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:07:20,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:07:20,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:07:20,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:07:20,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:07:20,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:07:20,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:07:20,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:07:20,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:07:20,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:07:20,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:07:20,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:07:20,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:07:20,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:07:20,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:07:20,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:07:20,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:07:20,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:07:20,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:07:20,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:07:20,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:07:20,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:07:20,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:07:20,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:07:20,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:07:20,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:07:20,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:07:20,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:07:20,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:07:20,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:07:20,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:07:20,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:07:20,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:07:20,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:07:20,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:07:20,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:07:20,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:07:20,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:07:20,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:07:20,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:07:20,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:07:20,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:07:20,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:07:20,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:07:20,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:07:20,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:07:20,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:07:20,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:07:20,333 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:07:20,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:07:20,334 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:07:20,334 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:07:20,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:07:20,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:07:20,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:07:20,335 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:07:20,336 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:07:20,336 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:07:20,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:07:20,336 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:07:20,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:07:20,337 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:07:20,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:07:20,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:07:20,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:07:20,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:07:20,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:07:20,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:07:20,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:07:20,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:07:20,340 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:07:20,340 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:07:20,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:07:20,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:07:20,341 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2021-10-28 09:07:20,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:07:20,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:07:20,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:07:20,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:07:20,845 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:07:20,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 09:07:20,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/691b237ad/dff1f230706d4799ba1f29af40ef3f46/FLAGb071d56d4 [2021-10-28 09:07:21,771 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:07:21,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 09:07:21,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/691b237ad/dff1f230706d4799ba1f29af40ef3f46/FLAGb071d56d4 [2021-10-28 09:07:22,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/data/691b237ad/dff1f230706d4799ba1f29af40ef3f46 [2021-10-28 09:07:22,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:07:22,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:07:22,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:07:22,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:07:22,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:07:22,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174f4a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22, skipping insertion in model container [2021-10-28 09:07:22,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:07:22,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:07:22,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:07:22,690 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:07:22,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:07:22,791 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:07:22,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22 WrapperNode [2021-10-28 09:07:22,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:07:22,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:07:22,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:07:22,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:07:22,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:07:22,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:07:22,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:07:22,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:07:22,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (1/1) ... [2021-10-28 09:07:22,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:07:22,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:07:22,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:07:23,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:07:23,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:07:23,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:07:23,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:07:23,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:07:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:07:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:07:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:07:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:07:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:07:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:07:23,054 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:07:23,054 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:07:23,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 09:07:23,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 09:07:23,055 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:07:23,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:07:23,056 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:07:23,056 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:07:23,056 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:07:23,056 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:07:23,057 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:07:23,057 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:07:23,057 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:07:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:07:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:07:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:07:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:07:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:07:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:07:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:07:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:07:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:07:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:07:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:07:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:07:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:07:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:07:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:07:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:07:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:07:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:07:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:07:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:07:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:07:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:07:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:07:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:07:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:07:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:07:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:07:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:07:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:07:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:07:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:07:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:07:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:07:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:07:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:07:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:07:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:07:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:07:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:07:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:07:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:07:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:07:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:07:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:07:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:07:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:07:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:07:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:07:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:07:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:07:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:07:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:07:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:07:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:07:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:07:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:07:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:07:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:07:23,077 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:07:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:07:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:07:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:07:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:07:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:07:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:07:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:07:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:07:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:07:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:07:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:07:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:07:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:07:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:07:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:07:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:07:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:07:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:07:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:07:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:07:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:07:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:07:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:07:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:07:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:07:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 09:07:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:07:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:07:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:07:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:07:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:07:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 09:07:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:07:23,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:07:23,871 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 09:07:23,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:07:23 BoogieIcfgContainer [2021-10-28 09:07:23,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:07:23,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:07:23,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:07:23,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:07:23,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:07:22" (1/3) ... [2021-10-28 09:07:23,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59491890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:07:23, skipping insertion in model container [2021-10-28 09:07:23,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:07:22" (2/3) ... [2021-10-28 09:07:23,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59491890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:07:23, skipping insertion in model container [2021-10-28 09:07:23,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:07:23" (3/3) ... [2021-10-28 09:07:23,890 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-28 09:07:23,897 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:07:23,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-28 09:07:23,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:07:23,982 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:07:23,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-28 09:07:24,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:07:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:07:24,010 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:24,011 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:24,011 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1511250447, now seen corresponding path program 1 times [2021-10-28 09:07:24,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:07:24,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445133262] [2021-10-28 09:07:24,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:24,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:07:24,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:07:24,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:07:24,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:07:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:24,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:07:24,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:07:24,373 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-10-28 09:07:24,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 13 [2021-10-28 09:07:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:24,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:07:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:24,472 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:07:24,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445133262] [2021-10-28 09:07:24,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445133262] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:07:24,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:07:24,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:07:24,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861363146] [2021-10-28 09:07:24,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:07:24,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:07:24,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:07:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:07:24,504 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:24,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:07:24,622 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-28 09:07:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:07:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 09:07:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:07:24,634 INFO L225 Difference]: With dead ends: 25 [2021-10-28 09:07:24,634 INFO L226 Difference]: Without dead ends: 22 [2021-10-28 09:07:24,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:07:24,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-28 09:07:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-28 09:07:24,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-28 09:07:24,682 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2021-10-28 09:07:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:07:24,683 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-28 09:07:24,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-28 09:07:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:07:24,684 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:24,684 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:24,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:07:24,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:07:24,906 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:24,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:24,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1511250448, now seen corresponding path program 1 times [2021-10-28 09:07:24,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:07:24,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523024314] [2021-10-28 09:07:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:24,911 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:07:24,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:07:24,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:07:24,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:07:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:07:25,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:07:25,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:07:25,191 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:07:25,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-10-28 09:07:25,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-10-28 09:07:25,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:25,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:07:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:07:25,421 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:07:25,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523024314] [2021-10-28 09:07:25,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523024314] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:07:25,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:07:25,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 09:07:25,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82031981] [2021-10-28 09:07:25,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:07:25,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:07:25,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:07:25,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:07:25,428 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:07:25,524 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-28 09:07:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:07:25,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 09:07:25,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:07:25,526 INFO L225 Difference]: With dead ends: 17 [2021-10-28 09:07:25,526 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 09:07:25,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:07:25,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 09:07:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 09:07:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 09:07:25,531 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-28 09:07:25,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:07:25,532 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 09:07:25,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:07:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 09:07:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:07:25,533 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:07:25,533 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:07:25,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:07:25,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:07:25,736 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:07:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:07:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -127243832, now seen corresponding path program 1 times [2021-10-28 09:07:25,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:07:25,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68609411] [2021-10-28 09:07:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:07:25,738 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:07:25,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:07:25,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:07:25,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:07:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:07:25,954 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:07:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:07:26,056 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:07:26,056 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:07:26,058 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:07:26,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 09:07:26,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 09:07:26,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 09:07:26,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 09:07:26,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 09:07:26,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 09:07:26,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 09:07:26,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 09:07:26,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 09:07:26,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 09:07:26,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:07:26,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:07:26,278 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 09:07:26,281 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:07:26,290 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:07:26,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:07:26 BoogieIcfgContainer [2021-10-28 09:07:26,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:07:26,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:07:26,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:07:26,308 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:07:26,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:07:23" (3/4) ... [2021-10-28 09:07:26,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:07:26,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:07:26,320 INFO L168 Benchmark]: Toolchain (without parser) took 4273.62 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 37.1 MB in the beginning and 51.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:26,321 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 60.8 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:07:26,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.46 ms. Allocated memory is still 60.8 MB. Free memory was 36.9 MB in the beginning and 36.7 MB in the end (delta: 254.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:26,325 INFO L168 Benchmark]: Boogie Preprocessor took 142.26 ms. Allocated memory is still 60.8 MB. Free memory was 36.7 MB in the beginning and 33.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:26,327 INFO L168 Benchmark]: RCFGBuilder took 935.43 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 33.8 MB in the beginning and 44.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:07:26,333 INFO L168 Benchmark]: TraceAbstraction took 2426.62 ms. Allocated memory is still 77.6 MB. Free memory was 44.6 MB in the beginning and 51.1 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:07:26,335 INFO L168 Benchmark]: Witness Printer took 5.73 ms. Allocated memory is still 77.6 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:07:26,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 60.8 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 752.46 ms. Allocated memory is still 60.8 MB. Free memory was 36.9 MB in the beginning and 36.7 MB in the end (delta: 254.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 142.26 ms. Allocated memory is still 60.8 MB. Free memory was 36.7 MB in the beginning and 33.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 935.43 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 33.8 MB in the beginning and 44.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2426.62 ms. Allocated memory is still 77.6 MB. Free memory was 44.6 MB in the beginning and 51.1 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.73 ms. Allocated memory is still 77.6 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * 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: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={15:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={15:0}] [L540] EXPR data.str.p2 VAL [data={15:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 54 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 35 SDslu, 11 SDs, 0 SdLazy, 23 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 62 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2021-10-28 09:07:26,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbcf3668-d5cb-45ca-9cae-93777f932c98/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...