./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer --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 282a32bc5fb3d70423f87a450340f7a26ab0f093 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:13:02,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:13:02,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:13:02,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:13:02,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:13:02,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:13:02,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:13:02,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:13:02,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:13:02,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:13:02,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:13:02,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:13:02,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:13:02,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:13:02,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:13:02,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:13:02,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:13:02,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:13:02,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:13:02,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:13:02,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:13:02,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:13:02,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:13:03,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:13:03,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:13:03,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:13:03,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:13:03,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:13:03,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:13:03,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:13:03,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:13:03,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:13:03,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:13:03,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:13:03,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:13:03,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:13:03,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:13:03,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:13:03,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:13:03,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:13:03,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:13:03,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-11-29 23:13:03,063 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:13:03,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:13:03,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:13:03,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:13:03,066 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:13:03,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:13:03,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:13:03,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:13:03,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:13:03,067 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 23:13:03,068 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 23:13:03,069 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 23:13:03,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:13:03,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 23:13:03,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:13:03,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:13:03,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:13:03,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:13:03,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:13:03,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:13:03,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:13:03,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:13:03,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:13:03,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:13:03,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:13:03,072 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-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 282a32bc5fb3d70423f87a450340f7a26ab0f093 [2020-11-29 23:13:03,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:13:03,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:13:03,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:13:03,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:13:03,399 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:13:03,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2020-11-29 23:13:03,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/data/31038df14/9057c3b4062d4b8b8279b656d6a8707d/FLAGe0997fef9 [2020-11-29 23:13:03,901 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:13:03,902 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2020-11-29 23:13:03,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/data/31038df14/9057c3b4062d4b8b8279b656d6a8707d/FLAGe0997fef9 [2020-11-29 23:13:04,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/data/31038df14/9057c3b4062d4b8b8279b656d6a8707d [2020-11-29 23:13:04,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:13:04,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 23:13:04,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:13:04,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:13:04,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:13:04,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bed330d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04, skipping insertion in model container [2020-11-29 23:13:04,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:13:04,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:13:04,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:13:04,488 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:13:04,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:13:04,542 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:13:04,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04 WrapperNode [2020-11-29 23:13:04,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:13:04,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:13:04,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:13:04,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:13:04,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... [2020-11-29 23:13:04,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:13:04,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:13:04,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:13:04,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:13:04,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:13:04,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 23:13:04,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:13:04,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 23:13:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 23:13:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 23:13:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:13:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:13:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:13:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:13:04,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 23:13:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:13:04,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:13:04,962 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-29 23:13:04,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:13:04 BoogieIcfgContainer [2020-11-29 23:13:04,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:13:04,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:13:04,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:13:04,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:13:04,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:13:04" (1/3) ... [2020-11-29 23:13:04,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88aebda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:13:04, skipping insertion in model container [2020-11-29 23:13:04,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:04" (2/3) ... [2020-11-29 23:13:04,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88aebda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:13:04, skipping insertion in model container [2020-11-29 23:13:04,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:13:04" (3/3) ... [2020-11-29 23:13:04,997 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays03-ValueRestictsIndex-2.c [2020-11-29 23:13:05,016 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:13:05,020 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-29 23:13:05,044 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-29 23:13:05,070 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:13:05,070 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 23:13:05,070 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:13:05,070 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:13:05,070 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:13:05,070 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:13:05,070 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:13:05,071 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:13:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-29 23:13:05,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 23:13:05,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:13:05,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:13:05,095 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 23:13:05,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:05,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1846113273, now seen corresponding path program 1 times [2020-11-29 23:13:05,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:05,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019153088] [2020-11-29 23:13:05,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:05,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:13:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:05,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019153088] [2020-11-29 23:13:05,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:13:05,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:13:05,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60449406] [2020-11-29 23:13:05,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:13:05,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:05,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:13:05,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:13:05,363 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-11-29 23:13:05,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:05,502 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-11-29 23:13:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:13:05,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 23:13:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:13:05,520 INFO L225 Difference]: With dead ends: 35 [2020-11-29 23:13:05,523 INFO L226 Difference]: Without dead ends: 32 [2020-11-29 23:13:05,525 INFO L677 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 [2020-11-29 23:13:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-29 23:13:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2020-11-29 23:13:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 23:13:05,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2020-11-29 23:13:05,577 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 8 [2020-11-29 23:13:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:13:05,578 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2020-11-29 23:13:05,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:13:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2020-11-29 23:13:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 23:13:05,580 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:13:05,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:13:05,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:13:05,582 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 23:13:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:05,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1846113274, now seen corresponding path program 1 times [2020-11-29 23:13:05,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:05,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000337753] [2020-11-29 23:13:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:13:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:05,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000337753] [2020-11-29 23:13:05,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:13:05,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:13:05,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094249401] [2020-11-29 23:13:05,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:13:05,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:05,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:13:05,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:13:05,655 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 4 states. [2020-11-29 23:13:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:05,762 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2020-11-29 23:13:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:13:05,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 23:13:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:13:05,763 INFO L225 Difference]: With dead ends: 26 [2020-11-29 23:13:05,764 INFO L226 Difference]: Without dead ends: 26 [2020-11-29 23:13:05,764 INFO L677 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 [2020-11-29 23:13:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-29 23:13:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-29 23:13:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 23:13:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-11-29 23:13:05,769 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 8 [2020-11-29 23:13:05,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:13:05,770 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-11-29 23:13:05,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:13:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-11-29 23:13:05,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:13:05,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:13:05,771 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:13:05,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:13:05,772 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 23:13:05,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:05,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1545536714, now seen corresponding path program 1 times [2020-11-29 23:13:05,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:05,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190300364] [2020-11-29 23:13:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:05,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:13:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:05,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190300364] [2020-11-29 23:13:05,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754423605] [2020-11-29 23:13:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:13:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:06,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:13:06,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:06,097 INFO L384 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 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 23:13:06,098 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:13:06,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:13:06,108 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:13:06,109 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-11-29 23:13:06,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:06,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:13:06,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2020-11-29 23:13:06,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027580651] [2020-11-29 23:13:06,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:13:06,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:06,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:13:06,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:13:06,141 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 7 states. [2020-11-29 23:13:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:06,253 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2020-11-29 23:13:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:13:06,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-11-29 23:13:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:13:06,255 INFO L225 Difference]: With dead ends: 31 [2020-11-29 23:13:06,255 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 23:13:06,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:13:06,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 23:13:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-29 23:13:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 23:13:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-11-29 23:13:06,260 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 12 [2020-11-29 23:13:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:13:06,261 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-11-29 23:13:06,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:13:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-11-29 23:13:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:13:06,262 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:13:06,262 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:13:06,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-29 23:13:06,463 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 23:13:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:06,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1776612895, now seen corresponding path program 1 times [2020-11-29 23:13:06,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:06,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583908035] [2020-11-29 23:13:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:13:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:06,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583908035] [2020-11-29 23:13:06,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57539252] [2020-11-29 23:13:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:13:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:06,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 23:13:06,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:06,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:13:06,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2020-11-29 23:13:06,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012296227] [2020-11-29 23:13:06,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:13:06,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:06,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:13:06,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:13:06,722 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2020-11-29 23:13:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:06,793 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-11-29 23:13:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:13:06,793 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-29 23:13:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:13:06,794 INFO L225 Difference]: With dead ends: 38 [2020-11-29 23:13:06,794 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 23:13:06,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:13:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 23:13:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-11-29 23:13:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 23:13:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-11-29 23:13:06,800 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 22 [2020-11-29 23:13:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:13:06,800 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-11-29 23:13:06,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:13:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-11-29 23:13:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 23:13:06,802 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:13:06,802 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:13:07,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:13:07,024 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 23:13:07,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:07,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1711448670, now seen corresponding path program 2 times [2020-11-29 23:13:07,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:07,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512178434] [2020-11-29 23:13:07,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:13:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:07,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512178434] [2020-11-29 23:13:07,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665933579] [2020-11-29 23:13:07,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:13:07,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 23:13:07,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:13:07,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:13:07,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 23:13:07,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:13:07,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2020-11-29 23:13:07,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183758515] [2020-11-29 23:13:07,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:13:07,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:07,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:13:07,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:13:07,290 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-11-29 23:13:07,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:07,324 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2020-11-29 23:13:07,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:13:07,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 23:13:07,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:13:07,327 INFO L225 Difference]: With dead ends: 34 [2020-11-29 23:13:07,327 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 23:13:07,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:13:07,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 23:13:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 23:13:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 23:13:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-11-29 23:13:07,331 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 26 [2020-11-29 23:13:07,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:13:07,331 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-11-29 23:13:07,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:13:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-11-29 23:13:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 23:13:07,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:13:07,333 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:13:07,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:13:07,544 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 23:13:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:07,545 INFO L82 PathProgramCache]: Analyzing trace with hash 237828452, now seen corresponding path program 1 times [2020-11-29 23:13:07,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:07,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707993258] [2020-11-29 23:13:07,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:07,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:13:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 23:13:07,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707993258] [2020-11-29 23:13:07,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:13:07,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:13:07,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281831403] [2020-11-29 23:13:07,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:13:07,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:07,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:13:07,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:13:07,639 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 5 states. [2020-11-29 23:13:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:07,683 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-11-29 23:13:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:13:07,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-29 23:13:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:13:07,684 INFO L225 Difference]: With dead ends: 28 [2020-11-29 23:13:07,684 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:13:07,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:13:07,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:13:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:13:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:13:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:13:07,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-11-29 23:13:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:13:07,685 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:13:07,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:13:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:13:07,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:13:07,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:13:07,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:13:07 BoogieIcfgContainer [2020-11-29 23:13:07,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:13:07,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:13:07,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:13:07,690 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:13:07,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:13:04" (3/4) ... [2020-11-29 23:13:07,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:13:07,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-29 23:13:07,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-29 23:13:07,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 23:13:07,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 23:13:07,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:13:07,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:13:07,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a9fe793e-4079-4744-9aa2-44aae8e22432/bin/uautomizer/witness.graphml [2020-11-29 23:13:07,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:13:07,771 INFO L168 Benchmark]: Toolchain (without parser) took 3452.48 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 77.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:07,772 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:13:07,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.90 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 111.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:07,774 INFO L168 Benchmark]: Boogie Preprocessor took 64.92 ms. Allocated memory is still 134.2 MB. Free memory was 111.8 MB in the beginning and 110.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:13:07,777 INFO L168 Benchmark]: RCFGBuilder took 352.30 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 96.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:07,777 INFO L168 Benchmark]: TraceAbstraction took 2724.66 ms. Allocated memory is still 134.2 MB. Free memory was 96.2 MB in the beginning and 79.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:07,778 INFO L168 Benchmark]: Witness Printer took 80.21 ms. Allocated memory is still 134.2 MB. Free memory was 79.2 MB in the beginning and 77.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:07,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.90 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 111.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.92 ms. Allocated memory is still 134.2 MB. Free memory was 111.8 MB in the beginning and 110.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 352.30 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 96.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2724.66 ms. Allocated memory is still 134.2 MB. Free memory was 96.2 MB in the beginning and 79.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * Witness Printer took 80.21 ms. Allocated memory is still 134.2 MB. Free memory was 79.2 MB in the beginning and 77.1 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: - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: 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: 11]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 114 SDtfs, 77 SDslu, 190 SDs, 0 SdLazy, 239 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 164 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 155 ConstructedInterpolants, 1 QuantifiedInterpolants, 18695 SizeOfPredicates, 1 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 56/118 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 proved your program to be correct! Received shutdown request...