./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/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_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:42:42,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:42:42,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:42:42,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:42:42,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:42:42,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:42:42,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:42:42,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:42:42,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:42:42,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:42:42,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:42:42,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:42:42,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:42:42,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:42:42,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:42:42,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:42:42,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:42:42,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:42:42,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:42:42,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:42:42,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:42:42,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:42:42,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:42:42,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:42:42,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:42:42,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:42:42,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:42:42,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:42:42,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:42:42,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:42:42,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:42:42,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:42:42,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:42:42,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:42:42,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:42:42,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:42:42,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:42:42,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:42:42,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:42:42,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:42:42,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:42:42,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 07:42:42,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:42:42,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:42:42,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:42:42,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:42:42,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:42:42,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:42:42,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:42:42,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:42:42,735 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:42:42,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:42:42,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:42:42,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:42:42,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:42:42,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:42:42,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:42:42,737 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 07:42:42,738 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 07:42:42,738 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 07:42:42,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:42:42,739 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:42:42,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:42:42,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:42:42,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:42:42,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:42:42,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:42:42,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:42,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:42:42,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:42:42,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:42:42,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:42:42,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:42:42,742 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_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2021-11-20 07:42:43,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:42:43,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:42:43,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:42:43,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:42:43,067 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:42:43,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-11-20 07:42:43,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/579db074f/0ae37fb242bb47bb80ce04eb780aaa85/FLAGeb489c85e [2021-11-20 07:42:43,753 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:42:43,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-11-20 07:42:43,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/579db074f/0ae37fb242bb47bb80ce04eb780aaa85/FLAGeb489c85e [2021-11-20 07:42:44,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/579db074f/0ae37fb242bb47bb80ce04eb780aaa85 [2021-11-20 07:42:44,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:42:44,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:42:44,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:44,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:42:44,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:42:44,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f71a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44, skipping insertion in model container [2021-11-20 07:42:44,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:42:44,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:42:44,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:44,530 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:42:44,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:44,637 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:42:44,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44 WrapperNode [2021-11-20 07:42:44,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:44,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:44,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:42:44,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:42:44,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,703 INFO L137 Inliner]: procedures = 124, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-11-20 07:42:44,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:44,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:42:44,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:42:44,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:42:44,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:42:44,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:42:44,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:42:44,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:42:44,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (1/1) ... [2021-11-20 07:42:44,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:44,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:42:44,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:42:44,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:42:44,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:42:44,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:42:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:42:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:42:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:42:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:42:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:42:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:42:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:42:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:42:45,001 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:42:45,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:42:45,181 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:42:45,187 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:42:45,188 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:42:45,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:45 BoogieIcfgContainer [2021-11-20 07:42:45,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:42:45,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:42:45,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:42:45,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:42:45,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:42:44" (1/3) ... [2021-11-20 07:42:45,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361b4e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:45, skipping insertion in model container [2021-11-20 07:42:45,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:44" (2/3) ... [2021-11-20 07:42:45,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361b4e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:45, skipping insertion in model container [2021-11-20 07:42:45,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:45" (3/3) ... [2021-11-20 07:42:45,198 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-11-20 07:42:45,203 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:42:45,203 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-20 07:42:45,247 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:42:45,254 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 [2021-11-20 07:42:45,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-20 07:42:45,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) [2021-11-20 07:42:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:42:45,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:45,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:42:45,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:45,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:45,289 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-20 07:42:45,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:45,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160030845] [2021-11-20 07:42:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:45,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:45,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:45,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160030845] [2021-11-20 07:42:45,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160030845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:45,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:45,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:42:45,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694900345] [2021-11-20 07:42:45,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:45,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:42:45,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:42:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:42:45,548 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-20 07:42:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:45,617 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-20 07:42:45,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:42:45,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-20 07:42:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:45,628 INFO L225 Difference]: With dead ends: 20 [2021-11-20 07:42:45,629 INFO L226 Difference]: Without dead ends: 18 [2021-11-20 07:42:45,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:42:45,636 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:45,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:42:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-20 07:42:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-20 07:42:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-11-20 07:42:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-11-20 07:42:45,670 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2021-11-20 07:42:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:45,670 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-11-20 07:42:45,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-20 07:42:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-11-20 07:42:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:42:45,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:45,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:42:45,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:42:45,672 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:45,677 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-20 07:42:45,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:45,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134475926] [2021-11-20 07:42:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:45,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:45,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:45,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134475926] [2021-11-20 07:42:45,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134475926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:45,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:45,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:42:45,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225576320] [2021-11-20 07:42:45,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:45,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:42:45,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:42:45,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:42:45,776 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-20 07:42:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:45,810 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-20 07:42:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:42:45,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-20 07:42:45,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:45,812 INFO L225 Difference]: With dead ends: 13 [2021-11-20 07:42:45,813 INFO L226 Difference]: Without dead ends: 13 [2021-11-20 07:42:45,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:42:45,820 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:45,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:42:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-20 07:42:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-20 07:42:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-11-20 07:42:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-20 07:42:45,831 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2021-11-20 07:42:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:45,831 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-20 07:42:45,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-20 07:42:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-20 07:42:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:42:45,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:45,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:45,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:42:45,837 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:45,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2021-11-20 07:42:45,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:45,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815028421] [2021-11-20 07:42:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:45,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:45,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:45,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:45,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815028421] [2021-11-20 07:42:45,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815028421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:45,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:45,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:45,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008183320] [2021-11-20 07:42:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:45,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:42:45,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:45,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:42:45,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:45,925 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-20 07:42:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:45,994 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-20 07:42:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:42:45,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-20 07:42:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:45,995 INFO L225 Difference]: With dead ends: 17 [2021-11-20 07:42:45,995 INFO L226 Difference]: Without dead ends: 17 [2021-11-20 07:42:45,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:45,997 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:45,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 26 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:42:45,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-20 07:42:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-11-20 07:42:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-20 07:42:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-20 07:42:46,006 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2021-11-20 07:42:46,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:46,006 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-20 07:42:46,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-20 07:42:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-20 07:42:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:42:46,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:46,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:46,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:42:46,008 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2021-11-20 07:42:46,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:46,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508902479] [2021-11-20 07:42:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:46,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:42:46,050 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:42:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:42:46,105 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:42:46,105 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:42:46,106 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2021-11-20 07:42:46,108 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (9 of 11 remaining) [2021-11-20 07:42:46,109 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (8 of 11 remaining) [2021-11-20 07:42:46,109 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (7 of 11 remaining) [2021-11-20 07:42:46,110 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (6 of 11 remaining) [2021-11-20 07:42:46,110 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (5 of 11 remaining) [2021-11-20 07:42:46,110 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (4 of 11 remaining) [2021-11-20 07:42:46,110 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (3 of 11 remaining) [2021-11-20 07:42:46,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (2 of 11 remaining) [2021-11-20 07:42:46,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (1 of 11 remaining) [2021-11-20 07:42:46,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (0 of 11 remaining) [2021-11-20 07:42:46,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:42:46,115 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-20 07:42:46,119 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:42:46,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:42:46 BoogieIcfgContainer [2021-11-20 07:42:46,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:42:46,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:42:46,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:42:46,150 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:42:46,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:45" (3/4) ... [2021-11-20 07:42:46,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:42:46,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:42:46,160 INFO L158 Benchmark]: Toolchain (without parser) took 2106.80ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 74.7MB in the beginning and 74.5MB in the end (delta: 207.1kB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-11-20 07:42:46,161 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 69.0MB in the end (delta: 49.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:46,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.91ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 64.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:42:46,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.41ms. Allocated memory is still 94.4MB. Free memory was 64.7MB in the beginning and 63.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:42:46,162 INFO L158 Benchmark]: Boogie Preprocessor took 46.02ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 61.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:46,163 INFO L158 Benchmark]: RCFGBuilder took 437.37ms. Allocated memory is still 94.4MB. Free memory was 61.8MB in the beginning and 51.1MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:42:46,164 INFO L158 Benchmark]: TraceAbstraction took 957.64ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 50.7MB in the beginning and 75.0MB in the end (delta: -24.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-11-20 07:42:46,165 INFO L158 Benchmark]: Witness Printer took 8.76ms. Allocated memory is still 121.6MB. Free memory was 75.0MB in the beginning and 74.5MB in the end (delta: 506.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:46,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 69.0MB in the end (delta: 49.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.91ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 64.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.41ms. Allocated memory is still 94.4MB. Free memory was 64.7MB in the beginning and 63.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.02ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 61.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 437.37ms. Allocated memory is still 94.4MB. Free memory was 61.8MB in the beginning and 51.1MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 957.64ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 50.7MB in the beginning and 75.0MB in the end (delta: -24.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 8.76ms. Allocated memory is still 121.6MB. Free memory was 75.0MB in the beginning and 74.5MB in the end (delta: 506.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 29 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 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 [2021-11-20 07:42:46,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/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_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:42:48,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:42:48,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:42:48,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:42:48,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:42:48,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:42:48,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:42:48,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:42:48,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:42:48,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:42:48,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:42:48,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:42:48,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:42:48,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:42:48,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:42:48,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:42:48,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:42:48,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:42:48,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:42:48,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:42:48,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:42:48,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:42:48,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:42:48,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:42:48,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:42:48,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:42:48,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:42:48,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:42:48,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:42:48,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:42:48,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:42:48,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:42:48,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:42:48,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:42:48,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:42:48,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:42:48,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:42:48,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:42:48,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:42:48,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:42:48,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:42:48,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-20 07:42:48,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:42:48,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:42:48,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:42:48,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:42:48,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:42:48,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:42:48,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:42:48,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:42:48,823 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:42:48,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:42:48,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:42:48,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:42:48,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:42:48,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:42:48,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:42:48,825 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 07:42:48,826 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 07:42:48,826 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 07:42:48,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:42:48,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:42:48,826 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:42:48,826 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:42:48,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:42:48,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:42:48,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:42:48,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:42:48,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:42:48,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:48,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:42:48,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:42:48,829 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:42:48,829 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:42:48,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:42:48,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:42:48,830 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_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2021-11-20 07:42:49,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:42:49,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:42:49,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:42:49,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:42:49,310 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:42:49,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-11-20 07:42:49,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/78a4c5982/c457a1797c4e41419220a0213d8b0296/FLAG9621eb420 [2021-11-20 07:42:50,080 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:42:50,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-11-20 07:42:50,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/78a4c5982/c457a1797c4e41419220a0213d8b0296/FLAG9621eb420 [2021-11-20 07:42:50,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/data/78a4c5982/c457a1797c4e41419220a0213d8b0296 [2021-11-20 07:42:50,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:42:50,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:42:50,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:50,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:42:50,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:42:50,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe533df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50, skipping insertion in model container [2021-11-20 07:42:50,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:42:50,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:42:50,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:50,780 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:42:50,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:50,912 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:42:50,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50 WrapperNode [2021-11-20 07:42:50,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:50,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:50,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:42:50,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:42:50,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,966 INFO L137 Inliner]: procedures = 127, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-11-20 07:42:50,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:50,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:42:50,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:42:50,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:42:50,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:50,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:51,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:42:51,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:42:51,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:42:51,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:42:51,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (1/1) ... [2021-11-20 07:42:51,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:51,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:42:51,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:42:51,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:42:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 07:42:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:42:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:42:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:42:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:42:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-20 07:42:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:42:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 07:42:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:42:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:42:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:42:51,203 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:42:51,205 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:42:51,472 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:42:51,479 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:42:51,479 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:42:51,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:51 BoogieIcfgContainer [2021-11-20 07:42:51,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:42:51,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:42:51,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:42:51,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:42:51,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:42:50" (1/3) ... [2021-11-20 07:42:51,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fdde5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:51, skipping insertion in model container [2021-11-20 07:42:51,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:50" (2/3) ... [2021-11-20 07:42:51,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fdde5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:51, skipping insertion in model container [2021-11-20 07:42:51,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:51" (3/3) ... [2021-11-20 07:42:51,505 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-11-20 07:42:51,510 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:42:51,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-20 07:42:51,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:42:51,605 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 [2021-11-20 07:42:51,605 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-20 07:42:51,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) [2021-11-20 07:42:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:42:51,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:51,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:42:51,643 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:51,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-20 07:42:51,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:51,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398596955] [2021-11-20 07:42:51,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:51,668 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:51,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:51,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:51,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:42:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:51,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:42:51,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:51,913 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 07:42:51,916 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 14 [2021-11-20 07:42:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:51,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:52,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:52,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398596955] [2021-11-20 07:42:52,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398596955] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:52,040 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:52,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:42:52,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201252740] [2021-11-20 07:42:52,044 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:52,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:42:52,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:52,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:42:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:42:52,105 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-20 07:42:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:52,214 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-20 07:42:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:42:52,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-20 07:42:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:52,227 INFO L225 Difference]: With dead ends: 20 [2021-11-20 07:42:52,227 INFO L226 Difference]: Without dead ends: 18 [2021-11-20 07:42:52,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:42:52,242 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:52,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:42:52,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-20 07:42:52,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-20 07:42:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-11-20 07:42:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-11-20 07:42:52,284 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2021-11-20 07:42:52,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:52,285 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-11-20 07:42:52,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-20 07:42:52,286 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-11-20 07:42:52,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:42:52,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:52,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:42:52,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:52,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:52,512 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-20 07:42:52,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:52,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942040028] [2021-11-20 07:42:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:52,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:52,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:52,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:52,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:42:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:52,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:42:52,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:52,629 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 07:42:52,630 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 20 treesize of output 21 [2021-11-20 07:42:52,638 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 22 treesize of output 20 [2021-11-20 07:42:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:52,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:52,797 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:52,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942040028] [2021-11-20 07:42:52,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942040028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:52,797 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:52,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 07:42:52,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687083344] [2021-11-20 07:42:52,798 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:52,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:42:52,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:52,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:42:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:52,804 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:52,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:52,905 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-20 07:42:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:42:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-20 07:42:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:52,907 INFO L225 Difference]: With dead ends: 17 [2021-11-20 07:42:52,908 INFO L226 Difference]: Without dead ends: 17 [2021-11-20 07:42:52,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:52,910 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:52,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 1 Unchecked, 0.1s Time] [2021-11-20 07:42:52,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-20 07:42:52,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-20 07:42:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 16 states have internal predecessors, (18), 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) [2021-11-20 07:42:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-11-20 07:42:52,919 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 3 [2021-11-20 07:42:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:52,920 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-20 07:42:52,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-11-20 07:42:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:42:52,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:52,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:42:52,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:53,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:53,122 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:53,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash 889446153, now seen corresponding path program 1 times [2021-11-20 07:42:53,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:53,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520989081] [2021-11-20 07:42:53,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:53,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:53,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:53,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:53,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:42:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:53,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:42:53,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:53,259 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 07:42:53,259 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 [2021-11-20 07:42:53,274 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 [2021-11-20 07:42:53,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:53,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:53,592 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:53,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520989081] [2021-11-20 07:42:53,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520989081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:53,592 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:53,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 07:42:53,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941383598] [2021-11-20 07:42:53,593 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:53,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:42:53,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:53,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:42:53,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:53,595 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-20 07:42:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:53,665 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-20 07:42:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:42:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-20 07:42:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:53,667 INFO L225 Difference]: With dead ends: 16 [2021-11-20 07:42:53,668 INFO L226 Difference]: Without dead ends: 16 [2021-11-20 07:42:53,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:53,670 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:53,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2021-11-20 07:42:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-20 07:42:53,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-20 07:42:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 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) [2021-11-20 07:42:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-20 07:42:53,674 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2021-11-20 07:42:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:53,675 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-20 07:42:53,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-20 07:42:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-20 07:42:53,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:42:53,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:53,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:42:53,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:53,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:53,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:53,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:53,889 INFO L85 PathProgramCache]: Analyzing trace with hash 889446313, now seen corresponding path program 1 times [2021-11-20 07:42:53,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:53,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453656303] [2021-11-20 07:42:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:53,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:53,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:53,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:53,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 07:42:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:53,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:42:53,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:53,989 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 07:42:53,989 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 [2021-11-20 07:42:53,994 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 [2021-11-20 07:42:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:54,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:54,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:54,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:54,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453656303] [2021-11-20 07:42:54,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453656303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:54,216 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:54,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 07:42:54,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378580698] [2021-11-20 07:42:54,217 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:54,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:42:54,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:42:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:54,218 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-20 07:42:54,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:54,293 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-11-20 07:42:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:42:54,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-20 07:42:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:54,296 INFO L225 Difference]: With dead ends: 15 [2021-11-20 07:42:54,296 INFO L226 Difference]: Without dead ends: 15 [2021-11-20 07:42:54,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:54,297 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:54,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 9 Unchecked, 0.1s Time] [2021-11-20 07:42:54,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-20 07:42:54,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-20 07:42:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-20 07:42:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-20 07:42:54,301 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 6 [2021-11-20 07:42:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:54,301 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-20 07:42:54,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-20 07:42:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-20 07:42:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 07:42:54,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:54,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:54,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:54,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:54,511 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1803026926, now seen corresponding path program 1 times [2021-11-20 07:42:54,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:54,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612640057] [2021-11-20 07:42:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:54,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:54,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:54,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:54,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 07:42:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:54,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:42:54,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:54,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:54,666 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 8 treesize of output 6 [2021-11-20 07:42:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:54,710 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:54,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612640057] [2021-11-20 07:42:54,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612640057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:54,711 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:54,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 07:42:54,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152541464] [2021-11-20 07:42:54,711 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:54,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:42:54,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:54,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:42:54,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:42:54,712 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2021-11-20 07:42:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:54,779 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-20 07:42:54,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:42:54,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 07:42:54,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:54,781 INFO L225 Difference]: With dead ends: 13 [2021-11-20 07:42:54,781 INFO L226 Difference]: Without dead ends: 13 [2021-11-20 07:42:54,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:42:54,782 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:54,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:42:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-20 07:42:54,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-20 07:42:54,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-11-20 07:42:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-20 07:42:54,786 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2021-11-20 07:42:54,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:54,786 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-20 07:42:54,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2021-11-20 07:42:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-20 07:42:54,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:42:54,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:54,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:54,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:54,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:54,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:54,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2021-11-20 07:42:54,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:54,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543410772] [2021-11-20 07:42:54,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:54,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:54,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:54,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:54,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 07:42:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:55,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:42:55,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:55,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 07:42:55,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 7 [2021-11-20 07:42:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:55,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:55,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:55,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543410772] [2021-11-20 07:42:55,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543410772] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:55,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:55,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:42:55,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561320180] [2021-11-20 07:42:55,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:55,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:42:55,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:42:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:42:55,171 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2021-11-20 07:42:55,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:55,284 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-20 07:42:55,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:42:55,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-20 07:42:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:55,285 INFO L225 Difference]: With dead ends: 17 [2021-11-20 07:42:55,285 INFO L226 Difference]: Without dead ends: 17 [2021-11-20 07:42:55,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:42:55,287 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:55,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:42:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-20 07:42:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-11-20 07:42:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-20 07:42:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-20 07:42:55,298 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2021-11-20 07:42:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:55,299 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-20 07:42:55,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2021-11-20 07:42:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-20 07:42:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:42:55,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:55,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:55,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:55,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:55,512 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-11-20 07:42:55,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:55,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2021-11-20 07:42:55,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:55,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970074886] [2021-11-20 07:42:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:55,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:55,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:55,514 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:55,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 07:42:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:42:55,576 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:42:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:42:55,629 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-20 07:42:55,630 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:42:55,631 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2021-11-20 07:42:55,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (9 of 11 remaining) [2021-11-20 07:42:55,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (8 of 11 remaining) [2021-11-20 07:42:55,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (7 of 11 remaining) [2021-11-20 07:42:55,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (6 of 11 remaining) [2021-11-20 07:42:55,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (5 of 11 remaining) [2021-11-20 07:42:55,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (4 of 11 remaining) [2021-11-20 07:42:55,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (3 of 11 remaining) [2021-11-20 07:42:55,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (2 of 11 remaining) [2021-11-20 07:42:55,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (1 of 11 remaining) [2021-11-20 07:42:55,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (0 of 11 remaining) [2021-11-20 07:42:55,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-20 07:42:55,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:55,838 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:55,841 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:42:55,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:42:55 BoogieIcfgContainer [2021-11-20 07:42:55,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:42:55,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:42:55,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:42:55,864 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:42:55,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:51" (3/4) ... [2021-11-20 07:42:55,868 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:42:55,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:42:55,869 INFO L158 Benchmark]: Toolchain (without parser) took 5516.35ms. Allocated memory was 60.8MB in the beginning and 92.3MB in the end (delta: 31.5MB). Free memory was 40.1MB in the beginning and 66.7MB in the end (delta: -26.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-11-20 07:42:55,870 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:55,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.17ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 38.4MB in the end (delta: 1.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-20 07:42:55,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.68ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 36.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:42:55,871 INFO L158 Benchmark]: Boogie Preprocessor took 32.83ms. Allocated memory is still 60.8MB. Free memory was 36.6MB in the beginning and 35.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:55,872 INFO L158 Benchmark]: RCFGBuilder took 479.77ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 35.1MB in the beginning and 53.6MB in the end (delta: -18.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-11-20 07:42:55,872 INFO L158 Benchmark]: TraceAbstraction took 4380.33ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 53.2MB in the beginning and 66.7MB in the end (delta: -13.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-20 07:42:55,872 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 92.3MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:55,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.17ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 38.4MB in the end (delta: 1.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.68ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 36.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.83ms. Allocated memory is still 60.8MB. Free memory was 36.6MB in the beginning and 35.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 479.77ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 35.1MB in the beginning and 53.6MB in the end (delta: -18.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4380.33ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 53.2MB in the beginning and 66.7MB in the end (delta: -13.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 92.3MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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={13:0}, malloc(37U)={3:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={13:0}] [L540] EXPR data.str.p2 VAL [data={13:0}, 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 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 20 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 66 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 9 QuantifiedInterpolants, 398 SizeOfPredicates, 16 NumberOfNonLiveVariables, 208 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 [2021-11-20 07:42:55,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f44ebce-e10a-4ae2-ae86-843657224d82/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample