./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 32689ae30ae51ecba7c5b43dcb93819b27d0e14fbdff3ab2701407818eca0145
.............................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:42:21,625 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:42:21,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:42:21,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:42:21,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:42:21,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:42:21,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:42:21,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:42:21,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:42:21,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:42:21,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:42:21,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:42:21,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:42:21,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:42:21,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:42:21,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:42:21,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:42:21,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:42:21,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:42:21,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:42:21,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:42:21,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:42:21,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:42:21,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:42:21,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:42:21,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:42:21,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:42:21,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:42:21,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:42:21,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:42:21,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:42:21,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:42:21,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:42:21,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:42:21,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:42:21,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:42:21,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:42:21,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:42:21,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:42:21,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:42:21,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:42:21,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2021-10-28 23:42:21,777 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:42:21,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:42:21,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:42:21,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:42:21,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:42:21,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:42:21,781 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:42:21,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:42:21,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-28 23:42:21,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:42:21,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:42:21,782 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-10-28 23:42:21,782 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-10-28 23:42:21,783 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-10-28 23:42:21,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:42:21,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-10-28 23:42:21,783 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:42:21,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:42:21,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:42:21,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:42:21,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:42:21,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:42:21,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:42:21,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:42:21,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:42:21,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:42:21,786 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_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32689ae30ae51ecba7c5b43dcb93819b27d0e14fbdff3ab2701407818eca0145
[2021-10-28 23:42:22,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:42:22,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:42:22,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:42:22,156 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:42:22,157 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:42:22,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c
[2021-10-28 23:42:22,254 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/data/27c0ee887/7f9e88d51c3b463dbf032e37903660db/FLAG0fe501ac3
[2021-10-28 23:42:22,748 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:42:22,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c
[2021-10-28 23:42:22,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/data/27c0ee887/7f9e88d51c3b463dbf032e37903660db/FLAG0fe501ac3
[2021-10-28 23:42:23,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/data/27c0ee887/7f9e88d51c3b463dbf032e37903660db
[2021-10-28 23:42:23,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:42:23,162 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-10-28 23:42:23,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:42:23,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:42:23,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:42:23,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c75e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23, skipping insertion in model container
[2021-10-28 23:42:23,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:42:23,211 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:42:23,399 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:42:23,408 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:42:23,420 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:42:23,436 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:42:23,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23 WrapperNode
[2021-10-28 23:42:23,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:42:23,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:42:23,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:42:23,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:42:23,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:42:23,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:42:23,474 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:42:23,474 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:42:23,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (1/1) ...
[2021-10-28 23:42:23,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:42:23,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:42:23,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:42:23,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:42:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-10-28 23:42:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:42:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-10-28 23:42:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2021-10-28 23:42:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2021-10-28 23:42:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-10-28 23:42:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-10-28 23:42:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-10-28 23:42:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-10-28 23:42:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-10-28 23:42:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-10-28 23:42:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-10-28 23:42:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:42:23,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:42:23,854 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-10-28 23:42:23,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:42:23 BoogieIcfgContainer
[2021-10-28 23:42:23,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:42:23,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:42:23,858 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:42:23,862 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:42:23,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:42:23" (1/3) ...
[2021-10-28 23:42:23,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fafc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:42:23, skipping insertion in model container
[2021-10-28 23:42:23,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:42:23" (2/3) ...
[2021-10-28 23:42:23,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fafc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:42:23, skipping insertion in model container
[2021-10-28 23:42:23,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:42:23" (3/3) ...
[2021-10-28 23:42:23,866 INFO L111 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-3.c
[2021-10-28 23:42:23,888 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:42:23,888 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations.
[2021-10-28 23:42:23,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:42:23,978 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 23:42:23,979 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2021-10-28 23:42:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:42:24,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-10-28 23:42:24,005 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:42:24,006 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:42:24,007 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 5 more)] ===
[2021-10-28 23:42:24,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:42:24,014 INFO L85 PathProgramCache]: Analyzing trace with hash 222801388, now seen corresponding path program 1 times
[2021-10-28 23:42:24,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:42:24,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393607491]
[2021-10-28 23:42:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:42:24,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:42:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:42:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:42:24,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:42:24,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393607491]
[2021-10-28 23:42:24,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393607491] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:42:24,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:42:24,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:42:24,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452426693]
[2021-10-28 23:42:24,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:42:24,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:42:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:42:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:42:24,311 INFO L87 Difference]: Start difference. First operand has 29 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:42:24,395 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions.
[2021-10-28 23:42:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:42:24,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7
[2021-10-28 23:42:24,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:42:24,407 INFO L225 Difference]: With dead ends: 25
[2021-10-28 23:42:24,407 INFO L226 Difference]: Without dead ends: 22
[2021-10-28 23:42:24,409 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:42:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2021-10-28 23:42:24,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2021-10-28 23:42:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions.
[2021-10-28 23:42:24,446 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 7
[2021-10-28 23:42:24,446 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:42:24,447 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions.
[2021-10-28 23:42:24,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions.
[2021-10-28 23:42:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-10-28 23:42:24,448 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:42:24,448 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:42:24,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:42:24,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 5 more)] ===
[2021-10-28 23:42:24,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:42:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash 222801389, now seen corresponding path program 1 times
[2021-10-28 23:42:24,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:42:24,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138634218]
[2021-10-28 23:42:24,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:42:24,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:42:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:42:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:42:24,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:42:24,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138634218]
[2021-10-28 23:42:24,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138634218] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:42:24,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:42:24,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:42:24,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970317186]
[2021-10-28 23:42:24,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:42:24,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:42:24,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:42:24,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:42:24,542 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:42:24,587 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions.
[2021-10-28 23:42:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:42:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7
[2021-10-28 23:42:24,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:42:24,589 INFO L225 Difference]: With dead ends: 18
[2021-10-28 23:42:24,589 INFO L226 Difference]: Without dead ends: 18
[2021-10-28 23:42:24,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:42:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2021-10-28 23:42:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2021-10-28 23:42:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions.
[2021-10-28 23:42:24,595 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7
[2021-10-28 23:42:24,595 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:42:24,595 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions.
[2021-10-28 23:42:24,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions.
[2021-10-28 23:42:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2021-10-28 23:42:24,596 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:42:24,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:42:24,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 23:42:24,597 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr7ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 5 more)] ===
[2021-10-28 23:42:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:42:24,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1751663173, now seen corresponding path program 1 times
[2021-10-28 23:42:24,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:42:24,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324339760]
[2021-10-28 23:42:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:42:24,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:42:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:42:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:42:24,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:42:24,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324339760]
[2021-10-28 23:42:24,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324339760] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:42:24,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:42:24,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:42:24,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978389431]
[2021-10-28 23:42:24,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:42:24,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:42:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:42:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:42:24,676 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:42:24,731 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions.
[2021-10-28 23:42:24,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:42:24,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10
[2021-10-28 23:42:24,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:42:24,734 INFO L225 Difference]: With dead ends: 17
[2021-10-28 23:42:24,734 INFO L226 Difference]: Without dead ends: 17
[2021-10-28 23:42:24,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:42:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2021-10-28 23:42:24,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2021-10-28 23:42:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions.
[2021-10-28 23:42:24,741 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10
[2021-10-28 23:42:24,742 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:42:24,742 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions.
[2021-10-28 23:42:24,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions.
[2021-10-28 23:42:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-10-28 23:42:24,743 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:42:24,744 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:42:24,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 23:42:24,746 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr9ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 5 more)] ===
[2021-10-28 23:42:24,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:42:24,752 INFO L85 PathProgramCache]: Analyzing trace with hash -278868728, now seen corresponding path program 1 times
[2021-10-28 23:42:24,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:42:24,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513363230]
[2021-10-28 23:42:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:42:24,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:42:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:42:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:42:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:42:24,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:42:24,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513363230]
[2021-10-28 23:42:24,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513363230] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:42:24,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:42:24,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:42:24,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42628330]
[2021-10-28 23:42:24,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 23:42:24,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:42:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:42:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:42:24,865 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:42:24,918 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions.
[2021-10-28 23:42:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:42:24,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2021-10-28 23:42:24,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:42:24,919 INFO L225 Difference]: With dead ends: 16
[2021-10-28 23:42:24,919 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 23:42:24,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:42:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 23:42:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 23:42:24,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:42:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 23:42:24,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2021-10-28 23:42:24,921 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:42:24,921 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 23:42:24,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:42:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 23:42:24,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 23:42:24,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0REQUIRES_VIOLATION
[2021-10-28 23:42:24,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1REQUIRES_VIOLATION
[2021-10-28 23:42:24,930 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr2REQUIRES_VIOLATION
[2021-10-28 23:42:24,931 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr3REQUIRES_VIOLATION
[2021-10-28 23:42:24,931 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr4REQUIRES_VIOLATION
[2021-10-28 23:42:24,932 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr5REQUIRES_VIOLATION
[2021-10-28 23:42:24,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:42:24,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:42:24,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:42:24,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr9ENSURES_VIOLATIONMEMORY_LEAK
[2021-10-28 23:42:24,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 23:42:24,937 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2021-10-28 23:42:24,938 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:42:24,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:42:24 BoogieIcfgContainer
[2021-10-28 23:42:24,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:42:24,946 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:42:24,946 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:42:24,946 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:42:24,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:42:23" (3/4) ...
[2021-10-28 23:42:24,950 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 23:42:24,957 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init
[2021-10-28 23:42:24,958 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main
[2021-10-28 23:42:24,964 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges
[2021-10-28 23:42:24,964 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2021-10-28 23:42:24,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:42:24,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:42:25,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:42:25,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:42:25,024 INFO L168 Benchmark]: Toolchain (without parser) took 1858.05 ms. Allocated memory is still 142.6 MB. Free memory was 111.7 MB in the beginning and 111.1 MB in the end (delta: 606.3 kB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,025 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.98 ms. Allocated memory is still 142.6 MB. Free memory was 111.4 MB in the beginning and 119.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,026 INFO L168 Benchmark]: Boogie Preprocessor took 34.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.4 MB in the beginning and 118.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,027 INFO L168 Benchmark]: RCFGBuilder took 382.79 ms. Allocated memory is still 142.6 MB. Free memory was 118.2 MB in the beginning and 108.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,027 INFO L168 Benchmark]: TraceAbstraction took 1084.63 ms. Allocated memory is still 142.6 MB. Free memory was 107.7 MB in the beginning and 113.2 MB in the end (delta: -5.5 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,028 INFO L168 Benchmark]: Witness Printer took 73.89 ms. Allocated memory is still 142.6 MB. Free memory was 113.2 MB in the beginning and 111.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:42:25,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 259.98 ms. Allocated memory is still 142.6 MB. Free memory was 111.4 MB in the beginning and 119.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 34.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.4 MB in the beginning and 118.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 382.79 ms. Allocated memory is still 142.6 MB. Free memory was 118.2 MB in the beginning and 108.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 1084.63 ms. Allocated memory is still 142.6 MB. Free memory was 107.7 MB in the beginning and 113.2 MB in the end (delta: -5.5 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Witness Printer took 73.89 ms. Allocated memory is still 142.6 MB. Free memory was 113.2 MB in the beginning and 111.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 15]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 15]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 16]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 16]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 16]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 16]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 18]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 18]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 18]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 13]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 39 SDslu, 31 SDs, 0 SdLazy, 107 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
10 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-10-28 23:42:25,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_425278d1-f793-4703-9400-16f05b351bf2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...