./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero3.c --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_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD --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 51393d639f010eae1b63625f7a13f75512f9f6892d9718dd03fa54720c8c54a0 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:45:12,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:45:12,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:45:12,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:45:13,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:45:13,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:45:13,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:45:13,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:45:13,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:45:13,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:45:13,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:45:13,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:45:13,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:45:13,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:45:13,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:45:13,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:45:13,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:45:13,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:45:13,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:45:13,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:45:13,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:45:13,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:45:13,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:45:13,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:45:13,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:45:13,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:45:13,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:45:13,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:45:13,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:45:13,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:45:13,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:45:13,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:45:13,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:45:13,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:45:13,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:45:13,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:45:13,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:45:13,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:45:13,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:45:13,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:45:13,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:45:13,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:45:13,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:45:13,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:45:13,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:45:13,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:45:13,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:45:13,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:45:13,107 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:45:13,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:45:13,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:45:13,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:45:13,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:45:13,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:45:13,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:45:13,108 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:45:13,109 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:45:13,109 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:45:13,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:45:13,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:45:13,109 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:45:13,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:45:13,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:45:13,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:45:13,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:45:13,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:45:13,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:45:13,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:45:13,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:45:13,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:45:13,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:45:13,112 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_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51393d639f010eae1b63625f7a13f75512f9f6892d9718dd03fa54720c8c54a0 [2021-10-28 23:45:13,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:45:13,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:45:13,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:45:13,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:45:13,495 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:45:13,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memsetNonZero3.c [2021-10-28 23:45:13,598 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/data/83d780ebe/0cdb86a610ca489d9083d9c6f30579b1/FLAG416014756 [2021-10-28 23:45:14,126 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:45:14,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/sv-benchmarks/c/ldv-memsafety/memsetNonZero3.c [2021-10-28 23:45:14,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/data/83d780ebe/0cdb86a610ca489d9083d9c6f30579b1/FLAG416014756 [2021-10-28 23:45:14,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/data/83d780ebe/0cdb86a610ca489d9083d9c6f30579b1 [2021-10-28 23:45:14,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:45:14,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:45:14,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:45:14,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:45:14,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:45:14,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1054ed7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14, skipping insertion in model container [2021-10-28 23:45:14,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:45:14,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:45:14,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:45:14,704 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:45:14,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:45:14,783 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:45:14,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14 WrapperNode [2021-10-28 23:45:14,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:45:14,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:45:14,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:45:14,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:45:14,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:45:14,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:45:14,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:45:14,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:45:14,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (1/1) ... [2021-10-28 23:45:14,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:45:14,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:14,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:45:14,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:45:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:45:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:45:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:45:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:45:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:45:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:45:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:45:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:45:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:45:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:45:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:45:15,071 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:45:15,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:45:15,133 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 23:45:15,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:15 BoogieIcfgContainer [2021-10-28 23:45:15,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:45:15,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:45:15,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:45:15,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:45:15,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:45:14" (1/3) ... [2021-10-28 23:45:15,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3635f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:45:15, skipping insertion in model container [2021-10-28 23:45:15,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:14" (2/3) ... [2021-10-28 23:45:15,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3635f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:45:15, skipping insertion in model container [2021-10-28 23:45:15,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:15" (3/3) ... [2021-10-28 23:45:15,151 INFO L111 eAbstractionObserver]: Analyzing ICFG memsetNonZero3.c [2021-10-28 23:45:15,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:45:15,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:45:15,209 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:45:15,217 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 23:45:15,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:45:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:45:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:45:15,244 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:15,244 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:15,245 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:45:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times [2021-10-28 23:45:15,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:15,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293467714] [2021-10-28 23:45:15,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:15,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:15,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:45:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:15,483 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 23:45:15,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:15,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293467714] [2021-10-28 23:45:15,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293467714] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:15,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:15,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:45:15,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42686744] [2021-10-28 23:45:15,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:45:15,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:15,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:45:15,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:45:15,538 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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 23:45:15,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:15,684 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-28 23:45:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:45:15,687 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 23:45:15,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:15,709 INFO L225 Difference]: With dead ends: 19 [2021-10-28 23:45:15,710 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 23:45:15,713 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 23:45:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 23:45:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:45:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:45:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-28 23:45:15,752 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-28 23:45:15,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:15,752 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-28 23:45:15,753 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 23:45:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-28 23:45:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:45:15,753 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:15,753 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:15,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:45:15,754 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:45:15,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times [2021-10-28 23:45:15,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:15,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150325740] [2021-10-28 23:45:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:15,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:45:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:15,877 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 23:45:15,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:15,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150325740] [2021-10-28 23:45:15,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150325740] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:15,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:15,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:45:15,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764405965] [2021-10-28 23:45:15,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:45:15,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:45:15,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:45:15,886 INFO L87 Difference]: Start difference. First operand 16 states and 16 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 23:45:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:15,936 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-10-28 23:45:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:45:15,937 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 23:45:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:15,938 INFO L225 Difference]: With dead ends: 15 [2021-10-28 23:45:15,938 INFO L226 Difference]: Without dead ends: 15 [2021-10-28 23:45:15,940 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 23:45:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-28 23:45:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-28 23:45:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:45:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-28 23:45:15,946 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2021-10-28 23:45:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:15,948 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-28 23:45:15,948 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 23:45:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-28 23:45:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:45:15,950 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:15,950 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:15,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:45:15,951 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:45:15,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1462327129, now seen corresponding path program 1 times [2021-10-28 23:45:15,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:15,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813097784] [2021-10-28 23:45:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:15,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:45:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:45:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,142 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 23:45:16,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:16,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813097784] [2021-10-28 23:45:16,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813097784] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:16,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:16,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:45:16,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389488053] [2021-10-28 23:45:16,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:45:16,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:16,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:45:16,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:45:16,147 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:45:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:16,216 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-28 23:45:16,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:45:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2021-10-28 23:45:16,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:16,218 INFO L225 Difference]: With dead ends: 18 [2021-10-28 23:45:16,219 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 23:45:16,219 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:45:16,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 23:45:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:45:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:45:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-28 23:45:16,225 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-10-28 23:45:16,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:16,225 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-28 23:45:16,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:45:16,226 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-28 23:45:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:45:16,227 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:16,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:16,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:45:16,228 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:45:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:16,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1971150090, now seen corresponding path program 1 times [2021-10-28 23:45:16,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:16,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297685865] [2021-10-28 23:45:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:16,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:45:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:45:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:16,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:16,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297685865] [2021-10-28 23:45:16,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297685865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:45:16,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903688565] [2021-10-28 23:45:16,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:16,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:16,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:16,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:45:16,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:45:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:45:16,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:16,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903688565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:45:16,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:45:16,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-10-28 23:45:16,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976572223] [2021-10-28 23:45:16,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:45:16,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:16,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:45:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:45:16,579 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:45:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:16,681 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-28 23:45:16,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:45:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-10-28 23:45:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:16,684 INFO L225 Difference]: With dead ends: 19 [2021-10-28 23:45:16,685 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 23:45:16,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:45:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 23:45:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:45:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:45:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-28 23:45:16,698 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2021-10-28 23:45:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:16,699 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-28 23:45:16,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:45:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-28 23:45:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:45:16,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:16,701 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:16,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:45:16,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:16,918 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:45:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:16,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1034761479, now seen corresponding path program 2 times [2021-10-28 23:45:16,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:16,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4256381] [2021-10-28 23:45:16,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:16,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:45:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:45:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:17,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:17,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4256381] [2021-10-28 23:45:17,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4256381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:45:17,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521760625] [2021-10-28 23:45:17,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:45:17,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:17,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:17,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:45:17,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:45:17,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:45:17,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:45:17,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:45:17,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:17,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 9 [2021-10-28 23:45:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:45:17,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521760625] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:17,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:45:17,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2021-10-28 23:45:17,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420463100] [2021-10-28 23:45:17,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:45:17,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:45:17,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:45:17,396 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:45:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:17,461 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-28 23:45:17,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:45:17,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2021-10-28 23:45:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:17,463 INFO L225 Difference]: With dead ends: 16 [2021-10-28 23:45:17,463 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:45:17,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:45:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:45:17,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:45:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:45:17,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:45:17,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-28 23:45:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:17,473 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:45:17,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:45:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:45:17,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:45:17,476 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:45:17,477 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:45:17,477 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:45:17,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:45:17,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:17,681 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-10-28 23:45:17,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:45:17,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:45:17 BoogieIcfgContainer [2021-10-28 23:45:17,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:45:17,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:45:17,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:45:17,686 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:45:17,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:15" (3/4) ... [2021-10-28 23:45:17,689 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:45:17,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-28 23:45:17,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-10-28 23:45:17,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-28 23:45:17,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-28 23:45:17,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 23:45:17,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:45:17,702 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:45:17,735 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:45:17,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:45:17,737 INFO L168 Benchmark]: Toolchain (without parser) took 3219.97 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 38.0 MB in the end (delta: 37.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:17,737 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 111.1 MB. Free memory is still 91.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:45:17,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.80 ms. Allocated memory is still 111.1 MB. Free memory was 75.2 MB in the beginning and 88.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:17,739 INFO L168 Benchmark]: Boogie Preprocessor took 48.68 ms. Allocated memory is still 111.1 MB. Free memory was 88.5 MB in the beginning and 87.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:17,739 INFO L168 Benchmark]: RCFGBuilder took 299.33 ms. Allocated memory is still 111.1 MB. Free memory was 87.0 MB in the beginning and 78.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:17,740 INFO L168 Benchmark]: TraceAbstraction took 2547.04 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 40.1 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:17,741 INFO L168 Benchmark]: Witness Printer took 49.64 ms. Allocated memory is still 111.1 MB. Free memory was 40.1 MB in the beginning and 38.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:17,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 111.1 MB. Free memory is still 91.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.80 ms. Allocated memory is still 111.1 MB. Free memory was 75.2 MB in the beginning and 88.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.68 ms. Allocated memory is still 111.1 MB. Free memory was 88.5 MB in the beginning and 87.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 299.33 ms. Allocated memory is still 111.1 MB. Free memory was 87.0 MB in the beginning and 78.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2547.04 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 40.1 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. * Witness Printer took 49.64 ms. Allocated memory is still 111.1 MB. Free memory was 40.1 MB in the beginning and 38.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - PositiveResult [Line: 29]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 29]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 36 SDslu, 66 SDs, 0 SdLazy, 131 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 8 QuantifiedInterpolants, 246 SizeOfPredicates, 2 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/8 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:45:17,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc15749-07c1-460d-b8bd-2d9f9f2c187d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...