./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9551eac17e9ca0a42612f73eb01545dde991582 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:28:54,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:28:54,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:28:54,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:28:54,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:28:54,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:28:54,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:28:54,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:28:54,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:28:54,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:28:54,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:28:54,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:28:54,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:28:54,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:28:54,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:28:54,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:28:54,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:28:54,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:28:54,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:28:54,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:28:54,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:28:54,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:28:54,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:28:54,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:28:54,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:28:54,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:28:54,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:28:54,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:28:54,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:28:54,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:28:54,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:28:54,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:28:54,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:28:54,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:28:54,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:28:54,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:28:54,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:28:54,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:28:54,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:28:54,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:28:54,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:28:54,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 15:28:54,942 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:28:54,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:28:54,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:28:54,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:28:54,943 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:28:54,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:28:54,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:28:54,944 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:28:54,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:28:54,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:28:54,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:28:54,944 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:28:54,945 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:28:54,945 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:28:54,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:28:54,945 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:28:54,945 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:28:54,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:28:54,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:28:54,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:28:54,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:28:54,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:28:54,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9551eac17e9ca0a42612f73eb01545dde991582 [2019-12-07 15:28:55,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:28:55,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:28:55,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:28:55,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:28:55,065 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:28:55,066 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2019-12-07 15:28:55,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/data/31371c34b/4621eeb380aa46a687d3ab4b18c5e977/FLAGcba91e644 [2019-12-07 15:28:55,544 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:28:55,544 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2019-12-07 15:28:55,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/data/31371c34b/4621eeb380aa46a687d3ab4b18c5e977/FLAGcba91e644 [2019-12-07 15:28:55,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/data/31371c34b/4621eeb380aa46a687d3ab4b18c5e977 [2019-12-07 15:28:55,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:28:55,566 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 15:28:55,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:28:55,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:28:55,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:28:55,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c77c204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55, skipping insertion in model container [2019-12-07 15:28:55,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:28:55,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:28:55,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:28:55,829 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:28:55,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:28:55,895 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:28:55,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55 WrapperNode [2019-12-07 15:28:55,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:28:55,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:28:55,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:28:55,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:28:55,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... [2019-12-07 15:28:55,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:28:55,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:28:55,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:28:55,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:28:55,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:28:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 15:28:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 15:28:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 15:28:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 15:28:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 15:28:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 15:28:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 15:28:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 15:28:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 15:28:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 15:28:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 15:28:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 15:28:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 15:28:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:28:56,221 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:28:56,221 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-12-07 15:28:56,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:28:56 BoogieIcfgContainer [2019-12-07 15:28:56,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:28:56,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:28:56,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:28:56,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:28:56,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:28:55" (1/3) ... [2019-12-07 15:28:56,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3751e0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:28:56, skipping insertion in model container [2019-12-07 15:28:56,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:28:55" (2/3) ... [2019-12-07 15:28:56,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3751e0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:28:56, skipping insertion in model container [2019-12-07 15:28:56,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:28:56" (3/3) ... [2019-12-07 15:28:56,227 INFO L109 eAbstractionObserver]: Analyzing ICFG mult_array-alloca-1.i [2019-12-07 15:28:56,233 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:28:56,238 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-12-07 15:28:56,245 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-07 15:28:56,257 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:28:56,257 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:28:56,257 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:28:56,258 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:28:56,258 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:28:56,258 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:28:56,258 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:28:56,258 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:28:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 15:28:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:28:56,273 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:56,273 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:56,274 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:56,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:56,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1489715982, now seen corresponding path program 1 times [2019-12-07 15:28:56,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:56,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644227091] [2019-12-07 15:28:56,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:56,346 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:56,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318874181] [2019-12-07 15:28:56,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:56,420 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:28:56,425 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:56,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644227091] [2019-12-07 15:28:56,465 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:56,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318874181] [2019-12-07 15:28:56,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:56,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:28:56,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787717663] [2019-12-07 15:28:56,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:28:56,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:56,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:28:56,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:28:56,482 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2019-12-07 15:28:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:56,522 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-12-07 15:28:56,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:28:56,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 15:28:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:56,529 INFO L225 Difference]: With dead ends: 33 [2019-12-07 15:28:56,529 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 15:28:56,530 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:28:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 15:28:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 15:28:56,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 15:28:56,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-12-07 15:28:56,553 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2019-12-07 15:28:56,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:56,554 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-12-07 15:28:56,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:28:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-12-07 15:28:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:28:56,554 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:56,554 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:56,755 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:56,756 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:56,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1063444840, now seen corresponding path program 1 times [2019-12-07 15:28:56,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:56,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197078413] [2019-12-07 15:28:56,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:56,785 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:56,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168836707] [2019-12-07 15:28:56,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:56,864 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:28:56,865 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:56,900 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-12-07 15:28:56,900 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 15:28:56,901 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:56,905 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:56,906 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 15:28:56,906 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-12-07 15:28:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:56,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197078413] [2019-12-07 15:28:56,914 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:56,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168836707] [2019-12-07 15:28:56,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:56,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:28:56,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559435664] [2019-12-07 15:28:56,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:28:56,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:56,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:28:56,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:28:56,917 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2019-12-07 15:28:56,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:56,934 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-12-07 15:28:56,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:28:56,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 15:28:56,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:56,935 INFO L225 Difference]: With dead ends: 28 [2019-12-07 15:28:56,935 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 15:28:56,936 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:28:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 15:28:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 15:28:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 15:28:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2019-12-07 15:28:56,940 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2019-12-07 15:28:56,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:56,940 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2019-12-07 15:28:56,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:28:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2019-12-07 15:28:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:28:56,941 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:56,941 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:57,141 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:57,142 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:57,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1063444839, now seen corresponding path program 1 times [2019-12-07 15:28:57,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:57,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900160299] [2019-12-07 15:28:57,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:57,173 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:57,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016309381] [2019-12-07 15:28:57,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:57,272 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 15:28:57,273 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:57,295 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-12-07 15:28:57,296 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 15:28:57,296 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:57,301 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:57,301 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 15:28:57,301 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:14 [2019-12-07 15:28:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:57,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900160299] [2019-12-07 15:28:57,321 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:57,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016309381] [2019-12-07 15:28:57,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:57,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:28:57,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829603382] [2019-12-07 15:28:57,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:28:57,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:57,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:28:57,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:28:57,323 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 6 states. [2019-12-07 15:28:57,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:57,436 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2019-12-07 15:28:57,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 15:28:57,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-12-07 15:28:57,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:57,438 INFO L225 Difference]: With dead ends: 70 [2019-12-07 15:28:57,438 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 15:28:57,438 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:28:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 15:28:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 44. [2019-12-07 15:28:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 15:28:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2019-12-07 15:28:57,443 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 13 [2019-12-07 15:28:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:57,444 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-12-07 15:28:57,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:28:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2019-12-07 15:28:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:28:57,444 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:57,445 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:57,645 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:57,646 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:57,647 INFO L82 PathProgramCache]: Analyzing trace with hash 711562523, now seen corresponding path program 1 times [2019-12-07 15:28:57,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:57,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930492912] [2019-12-07 15:28:57,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:57,673 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:57,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527171] [2019-12-07 15:28:57,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:57,766 INFO L264 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 15:28:57,767 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:57,777 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_13|], 1=[|v_#valid_25|]} [2019-12-07 15:28:57,780 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:28:57,781 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2019-12-07 15:28:57,782 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:57,791 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:57,796 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 15:28:57,797 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:57,805 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:57,808 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:28:57,808 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:30, output treesize:35 [2019-12-07 15:28:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:57,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930492912] [2019-12-07 15:28:57,839 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:57,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527171] [2019-12-07 15:28:57,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:57,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:28:57,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564597081] [2019-12-07 15:28:57,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:28:57,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:57,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:28:57,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:28:57,840 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 5 states. [2019-12-07 15:28:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:57,933 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2019-12-07 15:28:57,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:28:57,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-07 15:28:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:57,934 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:28:57,934 INFO L226 Difference]: Without dead ends: 50 [2019-12-07 15:28:57,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:28:57,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-12-07 15:28:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2019-12-07 15:28:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-12-07 15:28:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-12-07 15:28:57,938 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 13 [2019-12-07 15:28:57,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:57,938 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-12-07 15:28:57,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:28:57,938 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2019-12-07 15:28:57,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:28:57,939 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:57,939 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:58,139 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:58,140 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:58,141 INFO L82 PathProgramCache]: Analyzing trace with hash -650126436, now seen corresponding path program 1 times [2019-12-07 15:28:58,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:58,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310301851] [2019-12-07 15:28:58,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:58,165 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:58,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249555715] [2019-12-07 15:28:58,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:58,271 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:28:58,272 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:58,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310301851] [2019-12-07 15:28:58,293 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:58,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249555715] [2019-12-07 15:28:58,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:58,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:28:58,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355077219] [2019-12-07 15:28:58,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:28:58,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:58,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:28:58,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:28:58,294 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 5 states. [2019-12-07 15:28:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:58,323 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-12-07 15:28:58,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:28:58,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 15:28:58,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:58,324 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:28:58,324 INFO L226 Difference]: Without dead ends: 50 [2019-12-07 15:28:58,324 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:28:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-12-07 15:28:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2019-12-07 15:28:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 15:28:58,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2019-12-07 15:28:58,327 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 17 [2019-12-07 15:28:58,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:58,328 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2019-12-07 15:28:58,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:28:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2019-12-07 15:28:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:28:58,328 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:58,328 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:58,529 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:58,530 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:58,531 INFO L82 PathProgramCache]: Analyzing trace with hash 50938142, now seen corresponding path program 1 times [2019-12-07 15:28:58,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:58,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459013224] [2019-12-07 15:28:58,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:58,553 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:58,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128123620] [2019-12-07 15:28:58,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:58,630 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 15:28:58,631 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:58,635 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_14|], 1=[|v_#valid_26|]} [2019-12-07 15:28:58,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:28:58,639 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2019-12-07 15:28:58,639 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:58,646 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:58,649 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 15:28:58,649 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:58,656 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:58,657 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:28:58,657 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:24 [2019-12-07 15:28:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:58,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459013224] [2019-12-07 15:28:58,712 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:58,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128123620] [2019-12-07 15:28:58,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-12-07 15:28:58,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-12-07 15:28:58,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809376995] [2019-12-07 15:28:58,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:28:58,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:58,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:28:58,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:28:58,714 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 6 states. [2019-12-07 15:28:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:58,797 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-12-07 15:28:58,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:28:58,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 15:28:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:58,798 INFO L225 Difference]: With dead ends: 46 [2019-12-07 15:28:58,798 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 15:28:58,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:28:58,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 15:28:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2019-12-07 15:28:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 15:28:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2019-12-07 15:28:58,801 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 17 [2019-12-07 15:28:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:58,801 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2019-12-07 15:28:58,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:28:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2019-12-07 15:28:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:28:58,802 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:58,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:59,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:59,003 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:59,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:59,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1706863018, now seen corresponding path program 1 times [2019-12-07 15:28:59,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:59,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357130346] [2019-12-07 15:28:59,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:59,023 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:59,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116875361] [2019-12-07 15:28:59,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:59,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:28:59,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:28:59,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357130346] [2019-12-07 15:28:59,173 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:59,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116875361] [2019-12-07 15:28:59,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:59,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 15:28:59,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291908415] [2019-12-07 15:28:59,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:28:59,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:59,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:28:59,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:28:59,175 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 8 states. [2019-12-07 15:28:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:59,217 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2019-12-07 15:28:59,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 15:28:59,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-12-07 15:28:59,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:59,218 INFO L225 Difference]: With dead ends: 45 [2019-12-07 15:28:59,218 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 15:28:59,218 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:28:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 15:28:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2019-12-07 15:28:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 15:28:59,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-12-07 15:28:59,221 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2019-12-07 15:28:59,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:59,221 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-12-07 15:28:59,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:28:59,221 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-12-07 15:28:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 15:28:59,222 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:59,222 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:59,422 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:59,423 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:59,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1910705585, now seen corresponding path program 1 times [2019-12-07 15:28:59,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:59,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804821662] [2019-12-07 15:28:59,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:59,439 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:59,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058283351] [2019-12-07 15:28:59,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:59,488 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:28:59,489 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:28:59,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804821662] [2019-12-07 15:28:59,504 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:59,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058283351] [2019-12-07 15:28:59,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:59,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:28:59,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27717417] [2019-12-07 15:28:59,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:28:59,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:28:59,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:28:59,505 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2019-12-07 15:28:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:59,536 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2019-12-07 15:28:59,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:28:59,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-12-07 15:28:59,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:59,537 INFO L225 Difference]: With dead ends: 66 [2019-12-07 15:28:59,537 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 15:28:59,537 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:28:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 15:28:59,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2019-12-07 15:28:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 15:28:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-12-07 15:28:59,541 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 20 [2019-12-07 15:28:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:59,541 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-12-07 15:28:59,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:28:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-12-07 15:28:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 15:28:59,542 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:59,543 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:28:59,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:59,744 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:28:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:28:59,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1910704045, now seen corresponding path program 1 times [2019-12-07 15:28:59,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:28:59,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004335617] [2019-12-07 15:28:59,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:28:59,758 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:28:59,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314444846] [2019-12-07 15:28:59,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:28:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:28:59,812 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:28:59,813 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:28:59,826 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-12-07 15:28:59,826 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 15:28:59,826 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:28:59,829 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:28:59,829 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 15:28:59,829 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-12-07 15:28:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:28:59,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004335617] [2019-12-07 15:28:59,835 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:28:59,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314444846] [2019-12-07 15:28:59,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:28:59,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:28:59,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752449522] [2019-12-07 15:28:59,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:28:59,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:28:59,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:28:59,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:28:59,836 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 3 states. [2019-12-07 15:28:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:28:59,843 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-12-07 15:28:59,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:28:59,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-07 15:28:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:28:59,844 INFO L225 Difference]: With dead ends: 44 [2019-12-07 15:28:59,844 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 15:28:59,844 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:28:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 15:28:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-12-07 15:28:59,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 15:28:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-12-07 15:28:59,848 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 20 [2019-12-07 15:28:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:28:59,848 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-12-07 15:28:59,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:28:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-12-07 15:28:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 15:28:59,849 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:28:59,849 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:29:00,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:00,051 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:29:00,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:00,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1910704044, now seen corresponding path program 1 times [2019-12-07 15:29:00,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:00,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037155074] [2019-12-07 15:29:00,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:00,076 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:29:00,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488221541] [2019-12-07 15:29:00,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:29:00,146 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:29:00,147 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:29:00,159 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:29:00,159 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 35 [2019-12-07 15:29:00,160 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:29:00,175 INFO L614 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2019-12-07 15:29:00,176 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:29:00,176 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:13 [2019-12-07 15:29:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:29:00,199 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037155074] [2019-12-07 15:29:00,199 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:29:00,199 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488221541] [2019-12-07 15:29:00,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:29:00,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:29:00,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514383579] [2019-12-07 15:29:00,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:29:00,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:29:00,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:29:00,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:00,200 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2019-12-07 15:29:00,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:29:00,243 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-12-07 15:29:00,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:29:00,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-12-07 15:29:00,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:29:00,244 INFO L225 Difference]: With dead ends: 43 [2019-12-07 15:29:00,244 INFO L226 Difference]: Without dead ends: 43 [2019-12-07 15:29:00,245 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:29:00,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-12-07 15:29:00,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-12-07 15:29:00,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 15:29:00,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-12-07 15:29:00,247 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 20 [2019-12-07 15:29:00,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:29:00,247 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-12-07 15:29:00,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:29:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-12-07 15:29:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 15:29:00,248 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:29:00,248 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:29:00,448 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:00,449 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:29:00,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:00,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1652540147, now seen corresponding path program 1 times [2019-12-07 15:29:00,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:00,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117330127] [2019-12-07 15:29:00,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:00,467 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:29:00,467 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435136312] [2019-12-07 15:29:00,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:29:00,561 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:29:00,562 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:29:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:29:00,576 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117330127] [2019-12-07 15:29:00,576 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:29:00,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435136312] [2019-12-07 15:29:00,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:29:00,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:29:00,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561703327] [2019-12-07 15:29:00,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:29:00,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:29:00,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:29:00,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:00,577 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 5 states. [2019-12-07 15:29:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:29:00,608 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2019-12-07 15:29:00,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:29:00,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-12-07 15:29:00,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:29:00,609 INFO L225 Difference]: With dead ends: 57 [2019-12-07 15:29:00,609 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 15:29:00,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 15:29:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2019-12-07 15:29:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 15:29:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-12-07 15:29:00,612 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 20 [2019-12-07 15:29:00,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:29:00,612 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-12-07 15:29:00,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:29:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-12-07 15:29:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 15:29:00,613 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:29:00,613 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:29:00,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:00,815 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:29:00,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:00,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1373144461, now seen corresponding path program 1 times [2019-12-07 15:29:00,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:00,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4131078] [2019-12-07 15:29:00,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:00,832 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:29:00,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577960942] [2019-12-07 15:29:00,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:29:00,938 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:29:00,939 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:29:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:29:00,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4131078] [2019-12-07 15:29:00,953 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:29:00,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577960942] [2019-12-07 15:29:00,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:29:00,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:29:00,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931710659] [2019-12-07 15:29:00,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:29:00,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:29:00,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:29:00,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:00,954 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2019-12-07 15:29:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:29:00,976 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2019-12-07 15:29:00,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:29:00,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-12-07 15:29:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:29:00,977 INFO L225 Difference]: With dead ends: 66 [2019-12-07 15:29:00,977 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 15:29:00,978 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 15:29:00,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 43. [2019-12-07 15:29:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 15:29:00,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-12-07 15:29:00,980 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 20 [2019-12-07 15:29:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:29:00,980 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2019-12-07 15:29:00,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:29:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2019-12-07 15:29:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 15:29:00,981 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:29:00,981 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:29:01,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:01,182 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 15:29:01,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:01,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1631309899, now seen corresponding path program 1 times [2019-12-07 15:29:01,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:01,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29038153] [2019-12-07 15:29:01,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:01,190 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 15:29:01,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759042541] [2019-12-07 15:29:01,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:29:01,252 INFO L264 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:29:01,253 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:29:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:29:01,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29038153] [2019-12-07 15:29:01,275 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 15:29:01,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759042541] [2019-12-07 15:29:01,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:29:01,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:29:01,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688083237] [2019-12-07 15:29:01,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:29:01,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:29:01,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:29:01,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:01,276 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 5 states. [2019-12-07 15:29:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:29:01,299 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-12-07 15:29:01,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:29:01,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-12-07 15:29:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:29:01,300 INFO L225 Difference]: With dead ends: 42 [2019-12-07 15:29:01,300 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:29:01,300 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:29:01,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:29:01,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:29:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:29:01,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:29:01,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-12-07 15:29:01,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:29:01,301 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:29:01,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:29:01,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:29:01,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:29:01,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:29:01,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:29:01 BoogieIcfgContainer [2019-12-07 15:29:01,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:29:01,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:29:01,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:29:01,509 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:29:01,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:28:56" (3/4) ... [2019-12-07 15:29:01,512 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:29:01,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-12-07 15:29:01,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-12-07 15:29:01,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-12-07 15:29:01,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-12-07 15:29:01,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-12-07 15:29:01,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-12-07 15:29:01,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-12-07 15:29:01,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 15:29:01,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-07 15:29:01,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 15:29:01,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:29:01,546 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a05463d-a6c0-450f-9597-a44d22c632ad/bin/uautomizer/witness.graphml [2019-12-07 15:29:01,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:29:01,547 INFO L168 Benchmark]: Toolchain (without parser) took 5981.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -64.4 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:29:01,547 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:29:01,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:29:01,548 INFO L168 Benchmark]: Boogie Preprocessor took 35.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:29:01,548 INFO L168 Benchmark]: RCFGBuilder took 290.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:29:01,548 INFO L168 Benchmark]: TraceAbstraction took 5286.41 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 38.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 22.7 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:29:01,548 INFO L168 Benchmark]: Witness Printer took 36.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:29:01,549 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 290.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5286.41 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 38.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 22.7 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. * Witness Printer took 36.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 512]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 48 locations, 7 error locations. Result: SAFE, OverallTime: 5.2s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 271 SDtfs, 461 SDslu, 351 SDs, 0 SdLazy, 411 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 112 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 211 ConstructedInterpolants, 13 QuantifiedInterpolants, 23710 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1056 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 10/11 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...