./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/splice-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:34:52,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:34:52,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:34:52,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:34:52,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:34:52,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:34:52,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:34:52,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:34:52,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:34:52,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:34:52,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:34:52,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:34:52,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:34:52,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:34:52,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:34:52,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:34:52,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:34:52,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:34:52,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:34:52,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:34:52,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:34:52,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:34:52,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:34:52,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:34:52,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:34:52,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:34:52,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:34:52,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:34:52,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:34:52,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:34:52,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:34:52,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:34:52,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:34:52,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:34:52,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:34:52,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:34:52,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:34:52,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:34:52,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:34:53,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:34:53,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:34:53,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:34:53,028 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:34:53,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:34:53,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:34:53,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:34:53,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:34:53,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:34:53,031 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:34:53,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:34:53,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:34:53,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:34:53,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:34:53,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:34:53,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:34:53,033 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:34:53,033 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:34:53,033 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:34:53,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:34:53,034 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:34:53,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:34:53,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:34:53,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:34:53,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:34:53,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:34:53,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:34:53,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:34:53,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:34:53,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:34:53,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:34:53,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:34:53,041 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_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2021-10-28 08:34:53,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:34:53,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:34:53,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:34:53,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:34:53,387 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:34:53,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/list-properties/splice-2.i [2021-10-28 08:34:53,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/b2ac22aff/65470bee3a5c440da73d06eeb2d3a84c/FLAG74ffa90c1 [2021-10-28 08:34:54,092 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:34:54,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/sv-benchmarks/c/list-properties/splice-2.i [2021-10-28 08:34:54,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/b2ac22aff/65470bee3a5c440da73d06eeb2d3a84c/FLAG74ffa90c1 [2021-10-28 08:34:54,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/b2ac22aff/65470bee3a5c440da73d06eeb2d3a84c [2021-10-28 08:34:54,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:34:54,409 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:34:54,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:34:54,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:34:54,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:34:54,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:54,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8dd7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54, skipping insertion in model container [2021-10-28 08:34:54,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:54,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:34:54,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:34:54,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2021-10-28 08:34:54,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:34:54,902 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:34:54,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2021-10-28 08:34:54,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:34:54,989 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:34:54,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54 WrapperNode [2021-10-28 08:34:54,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:34:54,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:34:54,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:34:54,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:34:55,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:34:55,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:34:55,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:34:55,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:34:55,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (1/1) ... [2021-10-28 08:34:55,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:34:55,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:34:55,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:34:55,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:34:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:34:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:34:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 08:34:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:34:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:34:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:34:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:34:55,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:34:55,177 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-10-28 08:34:55,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:34:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:34:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 08:34:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 08:34:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 08:34:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 08:34:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:34:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:34:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:34:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:34:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:34:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:34:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:34:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:34:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:34:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:34:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:34:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:34:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:34:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:34:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:34:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:34:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:34:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:34:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:34:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:34:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:34:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:34:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:34:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:34:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:34:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:34:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:34:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:34:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:34:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:34:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:34:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:34:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:34:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:34:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:34:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:34:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:34:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:34:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:34:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:34:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:34:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:34:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:34:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:34:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:34:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:34:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:34:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:34:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:34:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:34:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:34:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:34:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:34:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:34:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:34:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:34:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:34:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:34:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:34:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:34:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:34:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:34:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:34:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:34:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:34:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:34:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:34:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:34:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:34:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:34:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:34:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:34:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:34:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:34:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:34:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:34:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:34:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:34:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:34:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:34:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:34:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:34:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:34:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:34:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:34:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:34:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:34:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:34:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:34:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:34:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:34:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:34:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:34:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:34:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:34:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:34:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:34:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:34:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:34:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:34:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:34:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:34:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:34:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:34:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:34:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:34:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:34:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:34:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-10-28 08:34:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:34:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:34:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:34:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:34:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:34:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:34:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:34:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:34:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:34:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:34:55,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-10-28 08:34:55,852 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:34:55,852 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 08:34:55,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:34:55 BoogieIcfgContainer [2021-10-28 08:34:55,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:34:55,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:34:55,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:34:55,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:34:55,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:34:54" (1/3) ... [2021-10-28 08:34:55,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198e6c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:34:55, skipping insertion in model container [2021-10-28 08:34:55,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:54" (2/3) ... [2021-10-28 08:34:55,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198e6c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:34:55, skipping insertion in model container [2021-10-28 08:34:55,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:34:55" (3/3) ... [2021-10-28 08:34:55,871 INFO L111 eAbstractionObserver]: Analyzing ICFG splice-2.i [2021-10-28 08:34:55,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:34:55,878 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-28 08:34:55,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:34:55,943 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 08:34:55,944 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-10-28 08:34:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 47 states have (on average 1.9574468085106382) internal successors, (92), 78 states have internal predecessors, (92), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:34:55,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:34:55,973 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:34:55,973 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:55,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr8REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:34:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:55,980 INFO L85 PathProgramCache]: Analyzing trace with hash 428760740, now seen corresponding path program 1 times [2021-10-28 08:34:55,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:55,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148940189] [2021-10-28 08:34:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:55,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:56,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:34:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:56,291 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 08:34:56,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:56,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148940189] [2021-10-28 08:34:56,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148940189] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:56,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:56,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:34:56,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848631548] [2021-10-28 08:34:56,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:34:56,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:56,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:34:56,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:34:56,317 INFO L87 Difference]: Start difference. First operand has 84 states, 47 states have (on average 1.9574468085106382) internal successors, (92), 78 states have internal predecessors, (92), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 08:34:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:34:56,486 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2021-10-28 08:34:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:34:56,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 08:34:56,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:34:56,495 INFO L225 Difference]: With dead ends: 84 [2021-10-28 08:34:56,495 INFO L226 Difference]: Without dead ends: 77 [2021-10-28 08:34:56,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:34:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-28 08:34:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-28 08:34:56,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 44 states have (on average 1.8409090909090908) internal successors, (81), 73 states have internal predecessors, (81), 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 08:34:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2021-10-28 08:34:56,536 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2021-10-28 08:34:56,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:34:56,536 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2021-10-28 08:34:56,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 08:34:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2021-10-28 08:34:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:34:56,538 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:34:56,538 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:56,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:34:56,538 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr8REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:34:56,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:56,539 INFO L85 PathProgramCache]: Analyzing trace with hash 406645412, now seen corresponding path program 1 times [2021-10-28 08:34:56,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:56,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809657068] [2021-10-28 08:34:56,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:56,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:34:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:56,629 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 08:34:56,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:56,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809657068] [2021-10-28 08:34:56,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809657068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:56,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:56,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:34:56,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027249450] [2021-10-28 08:34:56,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:34:56,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:34:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:34:56,634 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 08:34:56,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:34:56,819 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2021-10-28 08:34:56,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:34:56,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 11 [2021-10-28 08:34:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:34:56,821 INFO L225 Difference]: With dead ends: 84 [2021-10-28 08:34:56,822 INFO L226 Difference]: Without dead ends: 84 [2021-10-28 08:34:56,822 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:34:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-28 08:34:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2021-10-28 08:34:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 51 states have (on average 1.7254901960784315) internal successors, (88), 74 states have internal predecessors, (88), 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 08:34:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2021-10-28 08:34:56,832 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 11 [2021-10-28 08:34:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:34:56,832 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2021-10-28 08:34:56,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 08:34:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2021-10-28 08:34:56,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:34:56,834 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:34:56,834 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:56,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:34:56,834 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr9REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:34:56,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash 406645413, now seen corresponding path program 1 times [2021-10-28 08:34:56,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:56,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945457965] [2021-10-28 08:34:56,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:56,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:56,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:34:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:56,932 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 08:34:56,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:56,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945457965] [2021-10-28 08:34:56,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945457965] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:56,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:56,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:34:56,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903311920] [2021-10-28 08:34:56,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:34:56,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:34:56,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:34:56,935 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 08:34:57,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:34:57,131 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2021-10-28 08:34:57,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:34:57,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 11 [2021-10-28 08:34:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:34:57,133 INFO L225 Difference]: With dead ends: 92 [2021-10-28 08:34:57,133 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 08:34:57,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:34:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 08:34:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2021-10-28 08:34:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.5593220338983051) internal successors, (92), 81 states have internal predecessors, (92), 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 08:34:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2021-10-28 08:34:57,142 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 11 [2021-10-28 08:34:57,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:34:57,142 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2021-10-28 08:34:57,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 08:34:57,143 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2021-10-28 08:34:57,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:34:57,143 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:34:57,144 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:57,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:34:57,144 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr29ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:34:57,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:57,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1729229184, now seen corresponding path program 1 times [2021-10-28 08:34:57,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:57,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142035944] [2021-10-28 08:34:57,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:57,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:34:57,210 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:34:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:34:57,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:34:57,283 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:34:57,284 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr29ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:34:57,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 08:34:57,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 08:34:57,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 08:34:57,291 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 08:34:57,292 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 08:34:57,293 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 08:34:57,293 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 08:34:57,293 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 08:34:57,293 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 08:34:57,294 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 08:34:57,294 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION [2021-10-28 08:34:57,294 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-10-28 08:34:57,295 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-10-28 08:34:57,295 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-10-28 08:34:57,295 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-10-28 08:34:57,295 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-10-28 08:34:57,296 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION [2021-10-28 08:34:57,296 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17REQUIRES_VIOLATION [2021-10-28 08:34:57,296 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18REQUIRES_VIOLATION [2021-10-28 08:34:57,296 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19REQUIRES_VIOLATION [2021-10-28 08:34:57,296 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20REQUIRES_VIOLATION [2021-10-28 08:34:57,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr21REQUIRES_VIOLATION [2021-10-28 08:34:57,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr22REQUIRES_VIOLATION [2021-10-28 08:34:57,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr23REQUIRES_VIOLATION [2021-10-28 08:34:57,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr24REQUIRES_VIOLATION [2021-10-28 08:34:57,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr25REQUIRES_VIOLATION [2021-10-28 08:34:57,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr26REQUIRES_VIOLATION [2021-10-28 08:34:57,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr27REQUIRES_VIOLATION [2021-10-28 08:34:57,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 08:34:57,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:34:57,301 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 08:34:57,304 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:34:57,318 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 08:34:57,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:34:57 BoogieIcfgContainer [2021-10-28 08:34:57,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:34:57,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:34:57,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:34:57,332 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:34:57,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:34:55" (3/4) ... [2021-10-28 08:34:57,336 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:34:57,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:34:57,339 INFO L168 Benchmark]: Toolchain (without parser) took 2927.92 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 63.9 MB in the beginning and 106.8 MB in the end (delta: -42.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:34:57,339 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 104.9 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:34:57,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.10 ms. Allocated memory is still 104.9 MB. Free memory was 63.8 MB in the beginning and 73.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:57,344 INFO L168 Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 104.9 MB. Free memory was 73.7 MB in the beginning and 70.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:57,345 INFO L168 Benchmark]: RCFGBuilder took 767.40 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 47.3 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:57,349 INFO L168 Benchmark]: TraceAbstraction took 1469.54 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 46.9 MB in the beginning and 106.8 MB in the end (delta: -60.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:34:57,349 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 140.5 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:34:57,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 104.9 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.10 ms. Allocated memory is still 104.9 MB. Free memory was 63.8 MB in the beginning and 73.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.82 ms. Allocated memory is still 104.9 MB. Free memory was 73.7 MB in the beginning and 70.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 767.40 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 47.3 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1469.54 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 46.9 MB in the beginning and 106.8 MB in the end (delta: -60.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 140.5 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 531. Possible FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1] [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={-1:0}, flag=1, p={-1:0}] [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 VAL [a={-1:0}, flag=1, p={-1:0}] [L555] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, p={-1:0}] [L555] COND TRUE a->h == 3 [L555] return 0; VAL [\result=0, a={-1:0}, flag=1, p={-1:0}] - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 568]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 568]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 576]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 576]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 580]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 580]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 581]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 581]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 230 SDslu, 59 SDs, 0 SdLazy, 386 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:34:57,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:34:59,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:34:59,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:34:59,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:34:59,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:34:59,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:34:59,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:34:59,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:34:59,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:34:59,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:34:59,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:34:59,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:34:59,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:34:59,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:34:59,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:34:59,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:34:59,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:34:59,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:34:59,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:34:59,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:34:59,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:34:59,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:34:59,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:34:59,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:34:59,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:34:59,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:34:59,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:34:59,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:34:59,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:34:59,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:34:59,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:34:59,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:34:59,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:34:59,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:34:59,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:34:59,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:34:59,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:34:59,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:34:59,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:34:59,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:34:59,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:34:59,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 08:35:00,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:35:00,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:35:00,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:35:00,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:35:00,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:35:00,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:35:00,042 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:35:00,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:35:00,042 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:35:00,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:35:00,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:35:00,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:35:00,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:35:00,044 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:35:00,045 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:35:00,045 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:35:00,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:35:00,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:35:00,046 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:35:00,046 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:35:00,046 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:35:00,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:35:00,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:35:00,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:35:00,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:35:00,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:35:00,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:35:00,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:35:00,048 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:35:00,049 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:35:00,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:35:00,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:35:00,049 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2021-10-28 08:35:00,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:35:00,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:35:00,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:35:00,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:35:00,444 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:35:00,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/list-properties/splice-2.i [2021-10-28 08:35:00,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/2ac009856/eaab0d30d7114f5888fdb2c96aa4567c/FLAG5ca65e71e [2021-10-28 08:35:01,101 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:35:01,101 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/sv-benchmarks/c/list-properties/splice-2.i [2021-10-28 08:35:01,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/2ac009856/eaab0d30d7114f5888fdb2c96aa4567c/FLAG5ca65e71e [2021-10-28 08:35:01,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/data/2ac009856/eaab0d30d7114f5888fdb2c96aa4567c [2021-10-28 08:35:01,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:35:01,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:35:01,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:01,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:35:01,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:35:01,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:01" (1/1) ... [2021-10-28 08:35:01,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263ebf86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:01, skipping insertion in model container [2021-10-28 08:35:01,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:01" (1/1) ... [2021-10-28 08:35:01,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:35:01,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:35:01,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2021-10-28 08:35:01,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:01,927 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:35:01,996 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2021-10-28 08:35:02,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:02,042 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:35:02,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02 WrapperNode [2021-10-28 08:35:02,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:02,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:35:02,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:35:02,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:35:02,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:35:02,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:35:02,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:35:02,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:35:02,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (1/1) ... [2021-10-28 08:35:02,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:35:02,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:02,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:35:02,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:35:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:35:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:35:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:35:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 08:35:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:35:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:35:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:35:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:35:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:35:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-10-28 08:35:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:35:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:35:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 08:35:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 08:35:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 08:35:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 08:35:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:35:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:35:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:35:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:35:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:35:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:35:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:35:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:35:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:35:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:35:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:35:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:35:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:35:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:35:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:35:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:35:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:35:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:35:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:35:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:35:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:35:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:35:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:35:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:35:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:35:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:35:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:35:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:35:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:35:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:35:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:35:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:35:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:35:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:35:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:35:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:35:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:35:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:35:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:35:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:35:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:35:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:35:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:35:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:35:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:35:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:35:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:35:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:35:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:35:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:35:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:35:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:35:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:35:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:35:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:35:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:35:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:35:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:35:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:35:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:35:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:35:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:35:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:35:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:35:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:35:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:35:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:35:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:35:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:35:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:35:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:35:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:35:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:35:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:35:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:35:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:35:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:35:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:35:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:35:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:35:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:35:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:35:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:35:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:35:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:35:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:35:02,219 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:35:02,219 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:35:02,219 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:35:02,219 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:35:02,219 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:35:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:35:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:35:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:35:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:35:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:35:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:35:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:35:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:35:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:35:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:35:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:35:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-10-28 08:35:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:35:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:35:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:35:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:35:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:35:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:35:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:35:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 08:35:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:35:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:35:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 08:35:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 08:35:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:35:02,581 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-10-28 08:35:03,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:35:03,030 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 08:35:03,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:03 BoogieIcfgContainer [2021-10-28 08:35:03,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:35:03,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:35:03,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:35:03,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:35:03,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:35:01" (1/3) ... [2021-10-28 08:35:03,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6384a93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:35:03, skipping insertion in model container [2021-10-28 08:35:03,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:02" (2/3) ... [2021-10-28 08:35:03,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6384a93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:35:03, skipping insertion in model container [2021-10-28 08:35:03,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:03" (3/3) ... [2021-10-28 08:35:03,049 INFO L111 eAbstractionObserver]: Analyzing ICFG splice-2.i [2021-10-28 08:35:03,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:35:03,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-28 08:35:03,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:35:03,123 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 08:35:03,123 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-10-28 08:35:03,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 46 states have (on average 1.9782608695652173) internal successors, (91), 77 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:35:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:35:03,155 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:03,155 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:03,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr8REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:35:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1254687558, now seen corresponding path program 1 times [2021-10-28 08:35:03,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:35:03,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128706977] [2021-10-28 08:35:03,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:03,171 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:35:03,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:35:03,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:35:03,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:35:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:03,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:35:03,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:03,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 08:35:03,465 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 08:35:03,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:35:03,513 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 08:35:03,514 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:35:03,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128706977] [2021-10-28 08:35:03,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128706977] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:03,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:03,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:35:03,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993774616] [2021-10-28 08:35:03,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:35:03,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:35:03,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:35:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:35:03,542 INFO L87 Difference]: Start difference. First operand has 83 states, 46 states have (on average 1.9782608695652173) internal successors, (91), 77 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 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 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:35:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:03,893 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2021-10-28 08:35:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:35:03,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 08:35:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:03,904 INFO L225 Difference]: With dead ends: 90 [2021-10-28 08:35:03,904 INFO L226 Difference]: Without dead ends: 82 [2021-10-28 08:35:03,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:35:03,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-28 08:35:03,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2021-10-28 08:35:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 72 states have internal predecessors, (86), 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 08:35:03,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2021-10-28 08:35:03,955 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 10 [2021-10-28 08:35:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:03,956 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2021-10-28 08:35:03,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:35:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2021-10-28 08:35:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:35:03,958 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:03,958 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:03,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:04,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:35:04,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr9REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:35:04,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1254687559, now seen corresponding path program 1 times [2021-10-28 08:35:04,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:35:04,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406849136] [2021-10-28 08:35:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:04,173 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:35:04,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:35:04,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:35:04,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:35:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:04,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:35:04,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:04,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 08:35:04,470 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 08:35:04,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:35:04,654 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 08:35:04,655 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:35:04,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406849136] [2021-10-28 08:35:04,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406849136] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:04,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:04,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 08:35:04,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652776973] [2021-10-28 08:35:04,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:35:04,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:35:04,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:35:04,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:35:04,659 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:35:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:05,146 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2021-10-28 08:35:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:35:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 08:35:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:05,149 INFO L225 Difference]: With dead ends: 92 [2021-10-28 08:35:05,150 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 08:35:05,150 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:35:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 08:35:05,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2021-10-28 08:35:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 57 states have (on average 1.5789473684210527) internal successors, (90), 79 states have internal predecessors, (90), 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 08:35:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2021-10-28 08:35:05,175 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 10 [2021-10-28 08:35:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:05,176 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2021-10-28 08:35:05,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:35:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2021-10-28 08:35:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:35:05,177 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:05,177 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:05,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 08:35:05,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:35:05,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr29ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 25 more)] === [2021-10-28 08:35:05,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:05,399 INFO L85 PathProgramCache]: Analyzing trace with hash -703271917, now seen corresponding path program 1 times [2021-10-28 08:35:05,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:35:05,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77306648] [2021-10-28 08:35:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:05,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:35:05,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:35:05,401 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:35:05,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:35:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:05,553 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:05,620 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 08:35:05,621 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:35:05,622 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr29ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:35:05,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 08:35:05,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 08:35:05,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 08:35:05,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 08:35:05,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 08:35:05,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 08:35:05,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 08:35:05,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 08:35:05,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 08:35:05,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 08:35:05,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION [2021-10-28 08:35:05,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-10-28 08:35:05,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-10-28 08:35:05,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-10-28 08:35:05,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-10-28 08:35:05,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-10-28 08:35:05,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION [2021-10-28 08:35:05,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17REQUIRES_VIOLATION [2021-10-28 08:35:05,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18REQUIRES_VIOLATION [2021-10-28 08:35:05,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19REQUIRES_VIOLATION [2021-10-28 08:35:05,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20REQUIRES_VIOLATION [2021-10-28 08:35:05,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr21REQUIRES_VIOLATION [2021-10-28 08:35:05,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr22REQUIRES_VIOLATION [2021-10-28 08:35:05,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr23REQUIRES_VIOLATION [2021-10-28 08:35:05,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr24REQUIRES_VIOLATION [2021-10-28 08:35:05,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr25REQUIRES_VIOLATION [2021-10-28 08:35:05,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr26REQUIRES_VIOLATION [2021-10-28 08:35:05,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr27REQUIRES_VIOLATION [2021-10-28 08:35:05,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 08:35:05,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:05,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:35:05,857 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 08:35:05,859 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:35:05,865 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 08:35:05,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:35:05 BoogieIcfgContainer [2021-10-28 08:35:05,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:35:05,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:35:05,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:35:05,880 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:35:05,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:03" (3/4) ... [2021-10-28 08:35:05,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:35:05,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:35:05,885 INFO L168 Benchmark]: Toolchain (without parser) took 4495.21 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 53.4 MB in the beginning and 64.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:05,886 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:35:05,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.97 ms. Allocated memory is still 73.4 MB. Free memory was 53.2 MB in the beginning and 47.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:05,887 INFO L168 Benchmark]: Boogie Preprocessor took 86.52 ms. Allocated memory is still 73.4 MB. Free memory was 47.5 MB in the beginning and 44.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:05,888 INFO L168 Benchmark]: RCFGBuilder took 901.13 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 44.3 MB in the beginning and 53.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:05,889 INFO L168 Benchmark]: TraceAbstraction took 2841.41 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 64.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:05,890 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 64.3 MB in the end (delta: 281.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:35:05,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 650.97 ms. Allocated memory is still 73.4 MB. Free memory was 53.2 MB in the beginning and 47.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.52 ms. Allocated memory is still 73.4 MB. Free memory was 47.5 MB in the beginning and 44.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 901.13 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 44.3 MB in the beginning and 53.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2841.41 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 64.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 64.3 MB in the end (delta: 281.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 531. Possible FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) VAL [a={1:0}, flag=1] [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={1:0}, flag=1, p={1:0}] [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 VAL [a={1:0}, flag=1, p={1:0}] [L555] EXPR a->h VAL [a={1:0}, a->h=3, flag=1, p={1:0}] [L555] COND TRUE a->h == 3 [L555] return 0; VAL [\result=0, a={1:0}, flag=1, p={1:0}] - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 568]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 568]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 576]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 576]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 580]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 580]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 581]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 581]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 108 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 265 SDslu, 60 SDs, 0 SdLazy, 161 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 3 NumberOfNonLiveVariables, 124 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:35:05,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515aa838-7a60-4231-8931-1f55629001ae/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...