./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/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 5a3019657b4c9b0e8c0aa3e888313d420fe28d28 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:07:39,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:07:39,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:07:39,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:07:39,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:07:39,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:07:39,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:07:39,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:07:39,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:07:39,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:07:39,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:07:39,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:07:39,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:07:39,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:07:39,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:07:39,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:07:39,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:07:39,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:07:39,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:07:39,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:07:39,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:07:39,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:07:39,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:07:39,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:07:39,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:07:39,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:07:39,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:07:39,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:07:39,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:07:39,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:07:39,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:07:39,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:07:39,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:07:39,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:07:39,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:07:39,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:07:39,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:07:39,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:07:39,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:07:39,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:07:39,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:07:39,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:07:39,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:07:39,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:07:39,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:07:39,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:07:39,711 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:07:39,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:07:39,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:07:39,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:07:39,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:07:39,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:07:39,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:07:39,713 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:07:39,713 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:07:39,714 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:07:39,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:07:39,714 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:07:39,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:07:39,715 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:07:39,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:07:39,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:07:39,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:07:39,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:07:39,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:07:39,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:07:39,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:07:39,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:07:39,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:07:39,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:07:39,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a3019657b4c9b0e8c0aa3e888313d420fe28d28 [2020-11-28 03:07:39,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:07:40,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:07:40,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:07:40,028 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:07:40,029 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:07:40,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2020-11-28 03:07:40,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/data/e7468fabc/619dc864e47e4f27a6f0b890f0e94e31/FLAGbec4e7ff4 [2020-11-28 03:07:40,779 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:07:40,784 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2020-11-28 03:07:40,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/data/e7468fabc/619dc864e47e4f27a6f0b890f0e94e31/FLAGbec4e7ff4 [2020-11-28 03:07:41,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/data/e7468fabc/619dc864e47e4f27a6f0b890f0e94e31 [2020-11-28 03:07:41,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:07:41,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:07:41,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:41,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:07:41,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:07:41,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4848cbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41, skipping insertion in model container [2020-11-28 03:07:41,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:07:41,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:07:41,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:41,415 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:07:41,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:41,563 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:07:41,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41 WrapperNode [2020-11-28 03:07:41,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:41,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:07:41,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:07:41,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:07:41,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:07:41,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:07:41,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:07:41,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:07:41,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:07:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:07:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:07:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:07:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:07:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:07:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:07:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:07:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2020-11-28 03:07:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2020-11-28 03:07:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:07:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:07:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:07:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:07:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:07:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:07:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:07:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:07:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:07:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:07:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:07:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:07:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:07:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:07:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:07:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:07:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:07:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:07:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:07:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:07:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:07:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:07:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:07:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:07:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:07:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:07:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:07:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:07:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:07:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:07:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:07:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:07:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:07:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:07:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:07:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:07:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:07:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:07:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:07:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:07:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:07:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:07:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:07:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:07:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:07:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:07:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:07:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:07:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:07:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:07:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:07:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:07:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:07:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:07:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:07:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:07:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:07:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:07:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:07:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:07:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:07:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:07:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:07:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:07:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:07:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:07:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:07:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:07:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:07:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:07:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:07:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:07:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:07:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:07:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:07:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:07:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:07:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:07:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:07:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:07:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:07:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:07:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:07:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:07:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:07:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:07:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:07:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:07:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:07:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:07:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:07:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:07:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:07:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:07:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:07:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:07:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:07:41,799 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:07:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:07:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:07:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-11-28 03:07:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2020-11-28 03:07:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:07:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:07:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure cstrpbrk [2020-11-28 03:07:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:07:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:07:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:07:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:07:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:07:42,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:07:42,639 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-28 03:07:42,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:42 BoogieIcfgContainer [2020-11-28 03:07:42,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:07:42,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:07:42,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:07:42,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:07:42,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:41" (1/3) ... [2020-11-28 03:07:42,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5114ee57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:42, skipping insertion in model container [2020-11-28 03:07:42,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41" (2/3) ... [2020-11-28 03:07:42,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5114ee57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:42, skipping insertion in model container [2020-11-28 03:07:42,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:42" (3/3) ... [2020-11-28 03:07:42,650 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrpbrk_unsafe.i [2020-11-28 03:07:42,663 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:07:42,668 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2020-11-28 03:07:42,681 INFO L253 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2020-11-28 03:07:42,717 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:07:42,717 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:07:42,717 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:07:42,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:07:42,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:07:42,718 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:07:42,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:07:42,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:07:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-11-28 03:07:42,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:07:42,757 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:42,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:42,758 INFO L429 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:42,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:42,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1361999972, now seen corresponding path program 1 times [2020-11-28 03:07:42,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:42,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253700210] [2020-11-28 03:07:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:43,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:43,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253700210] [2020-11-28 03:07:43,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:43,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:07:43,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623880012] [2020-11-28 03:07:43,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:07:43,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:43,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:07:43,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:07:43,046 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-11-28 03:07:43,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:43,479 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2020-11-28 03:07:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:07:43,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:07:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:43,500 INFO L225 Difference]: With dead ends: 71 [2020-11-28 03:07:43,501 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 03:07:43,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:07:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 03:07:43,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 03:07:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:07:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2020-11-28 03:07:43,552 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 11 [2020-11-28 03:07:43,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:43,553 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2020-11-28 03:07:43,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:07:43,553 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2020-11-28 03:07:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:07:43,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:43,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:43,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:07:43,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1361999971, now seen corresponding path program 1 times [2020-11-28 03:07:43,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:43,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903449729] [2020-11-28 03:07:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:43,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:43,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903449729] [2020-11-28 03:07:43,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:43,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:07:43,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693394778] [2020-11-28 03:07:43,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:07:43,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:43,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:07:43,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:43,723 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 5 states. [2020-11-28 03:07:44,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:44,014 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-11-28 03:07:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:44,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-28 03:07:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:44,020 INFO L225 Difference]: With dead ends: 67 [2020-11-28 03:07:44,020 INFO L226 Difference]: Without dead ends: 67 [2020-11-28 03:07:44,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:07:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-28 03:07:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-28 03:07:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-28 03:07:44,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2020-11-28 03:07:44,037 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 11 [2020-11-28 03:07:44,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:44,037 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2020-11-28 03:07:44,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:07:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2020-11-28 03:07:44,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:07:44,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:44,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:44,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:07:44,039 INFO L429 AbstractCegarLoop]: === Iteration 3 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:44,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:44,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1361999918, now seen corresponding path program 1 times [2020-11-28 03:07:44,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:44,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115909893] [2020-11-28 03:07:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:44,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115909893] [2020-11-28 03:07:44,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:44,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:07:44,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170156775] [2020-11-28 03:07:44,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:07:44,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:44,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:07:44,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:44,166 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 5 states. [2020-11-28 03:07:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:44,427 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2020-11-28 03:07:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:44,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-28 03:07:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:44,432 INFO L225 Difference]: With dead ends: 73 [2020-11-28 03:07:44,432 INFO L226 Difference]: Without dead ends: 73 [2020-11-28 03:07:44,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:07:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-28 03:07:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-11-28 03:07:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-28 03:07:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2020-11-28 03:07:44,460 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 11 [2020-11-28 03:07:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:44,460 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2020-11-28 03:07:44,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:07:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2020-11-28 03:07:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:07:44,461 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:44,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:44,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:07:44,462 INFO L429 AbstractCegarLoop]: === Iteration 4 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:44,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:44,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1361940336, now seen corresponding path program 1 times [2020-11-28 03:07:44,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:44,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889412340] [2020-11-28 03:07:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:44,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:44,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889412340] [2020-11-28 03:07:44,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:44,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:07:44,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546228810] [2020-11-28 03:07:44,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:07:44,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:44,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:07:44,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:44,600 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 5 states. [2020-11-28 03:07:44,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:44,864 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-11-28 03:07:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:44,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-28 03:07:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:44,866 INFO L225 Difference]: With dead ends: 77 [2020-11-28 03:07:44,866 INFO L226 Difference]: Without dead ends: 77 [2020-11-28 03:07:44,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:07:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-28 03:07:44,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2020-11-28 03:07:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 03:07:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2020-11-28 03:07:44,875 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 11 [2020-11-28 03:07:44,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:44,876 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2020-11-28 03:07:44,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:07:44,876 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2020-11-28 03:07:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:07:44,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:44,877 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:44,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:07:44,877 INFO L429 AbstractCegarLoop]: === Iteration 5 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:44,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:44,878 INFO L82 PathProgramCache]: Analyzing trace with hash 670453331, now seen corresponding path program 1 times [2020-11-28 03:07:44,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:44,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252107275] [2020-11-28 03:07:44,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:45,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252107275] [2020-11-28 03:07:45,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301868648] [2020-11-28 03:07:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:45,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:07:45,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:45,300 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-28 03:07:45,301 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:45,386 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:45,386 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:45,386 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-11-28 03:07:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:45,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:07:45,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2020-11-28 03:07:45,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058830158] [2020-11-28 03:07:45,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:07:45,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:45,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:07:45,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:07:45,520 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand 7 states. [2020-11-28 03:07:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:45,833 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2020-11-28 03:07:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:07:45,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-28 03:07:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:45,836 INFO L225 Difference]: With dead ends: 76 [2020-11-28 03:07:45,836 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 03:07:45,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:07:45,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 03:07:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2020-11-28 03:07:45,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:07:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2020-11-28 03:07:45,853 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 15 [2020-11-28 03:07:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:45,853 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2020-11-28 03:07:45,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:07:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2020-11-28 03:07:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:07:45,855 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:45,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:46,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:46,072 INFO L429 AbstractCegarLoop]: === Iteration 6 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:46,072 INFO L82 PathProgramCache]: Analyzing trace with hash 140003118, now seen corresponding path program 1 times [2020-11-28 03:07:46,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:46,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395791978] [2020-11-28 03:07:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:46,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:46,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-28 03:07:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:46,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-28 03:07:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:07:46,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395791978] [2020-11-28 03:07:46,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688620148] [2020-11-28 03:07:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:46,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 03:07:46,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:46,624 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-28 03:07:46,624 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:46,631 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:46,631 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:46,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 03:07:46,724 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:46,724 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-11-28 03:07:46,725 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:46,746 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-11-28 03:07:46,747 INFO L545 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. [2020-11-28 03:07:46,747 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-11-28 03:07:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:46,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:07:46,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 13 [2020-11-28 03:07:46,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894513525] [2020-11-28 03:07:46,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-28 03:07:46,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-28 03:07:46,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:07:46,771 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 14 states. [2020-11-28 03:07:47,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:47,654 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2020-11-28 03:07:47,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:07:47,655 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2020-11-28 03:07:47,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:47,656 INFO L225 Difference]: With dead ends: 69 [2020-11-28 03:07:47,656 INFO L226 Difference]: Without dead ends: 69 [2020-11-28 03:07:47,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2020-11-28 03:07:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-28 03:07:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-11-28 03:07:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-28 03:07:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2020-11-28 03:07:47,664 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 28 [2020-11-28 03:07:47,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:47,664 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2020-11-28 03:07:47,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-28 03:07:47,665 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2020-11-28 03:07:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:07:47,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:47,666 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:47,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:47,888 INFO L429 AbstractCegarLoop]: === Iteration 7 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:47,889 INFO L82 PathProgramCache]: Analyzing trace with hash 140003119, now seen corresponding path program 1 times [2020-11-28 03:07:47,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:47,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364113947] [2020-11-28 03:07:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-28 03:07:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:48,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-28 03:07:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:07:48,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364113947] [2020-11-28 03:07:48,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616418436] [2020-11-28 03:07:48,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:48,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 39 conjunts are in the unsatisfiable core [2020-11-28 03:07:48,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:48,493 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-28 03:07:48,493 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:48,498 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:48,498 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:48,498 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-28 03:07:48,705 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:48,706 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-11-28 03:07:48,706 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:48,738 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-11-28 03:07:48,739 INFO L545 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. [2020-11-28 03:07:48,739 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-11-28 03:07:48,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:48,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:07:48,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2020-11-28 03:07:48,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276831097] [2020-11-28 03:07:48,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-28 03:07:48,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:48,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-28 03:07:48,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-11-28 03:07:48,847 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 24 states. [2020-11-28 03:07:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:50,430 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2020-11-28 03:07:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-28 03:07:50,432 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 28 [2020-11-28 03:07:50,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:50,433 INFO L225 Difference]: With dead ends: 140 [2020-11-28 03:07:50,433 INFO L226 Difference]: Without dead ends: 140 [2020-11-28 03:07:50,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=965, Unknown=0, NotChecked=0, Total=1122 [2020-11-28 03:07:50,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-28 03:07:50,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 96. [2020-11-28 03:07:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-28 03:07:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions. [2020-11-28 03:07:50,443 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 28 [2020-11-28 03:07:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:50,443 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions. [2020-11-28 03:07:50,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-28 03:07:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions. [2020-11-28 03:07:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:07:50,451 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:50,452 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:50,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:50,668 INFO L429 AbstractCegarLoop]: === Iteration 8 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:50,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:50,669 INFO L82 PathProgramCache]: Analyzing trace with hash 562704945, now seen corresponding path program 1 times [2020-11-28 03:07:50,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:50,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878410599] [2020-11-28 03:07:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:50,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:50,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-28 03:07:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:50,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-28 03:07:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:07:51,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878410599] [2020-11-28 03:07:51,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233784283] [2020-11-28 03:07:51,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/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 [2020-11-28 03:07:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:51,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 40 conjunts are in the unsatisfiable core [2020-11-28 03:07:51,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:51,185 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-28 03:07:51,186 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:51,201 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:51,205 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-28 03:07:51,206 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:51,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:51,215 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:51,215 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2020-11-28 03:07:51,339 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:51,340 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-11-28 03:07:51,342 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:07:51,345 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:51,353 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:51,357 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-28 03:07:51,357 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:51,364 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:51,365 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:51,366 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:9 [2020-11-28 03:07:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:51,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:07:51,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 15 [2020-11-28 03:07:51,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257529299] [2020-11-28 03:07:51,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-28 03:07:51,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:51,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-28 03:07:51,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:07:51,373 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand 16 states. [2020-11-28 03:07:51,893 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-11-28 03:07:52,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:52,568 INFO L93 Difference]: Finished difference Result 130 states and 167 transitions. [2020-11-28 03:07:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:07:52,571 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 28 [2020-11-28 03:07:52,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:52,573 INFO L225 Difference]: With dead ends: 130 [2020-11-28 03:07:52,573 INFO L226 Difference]: Without dead ends: 130 [2020-11-28 03:07:52,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2020-11-28 03:07:52,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-28 03:07:52,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 67. [2020-11-28 03:07:52,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-28 03:07:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2020-11-28 03:07:52,588 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 28 [2020-11-28 03:07:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:52,588 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2020-11-28 03:07:52,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-28 03:07:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2020-11-28 03:07:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:07:52,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:52,589 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:52,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:07:52,805 INFO L429 AbstractCegarLoop]: === Iteration 9 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:52,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:52,805 INFO L82 PathProgramCache]: Analyzing trace with hash 124645684, now seen corresponding path program 1 times [2020-11-28 03:07:52,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:52,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674634536] [2020-11-28 03:07:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:52,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-28 03:07:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-28 03:07:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 03:07:53,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674634536] [2020-11-28 03:07:53,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:53,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:07:53,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970044464] [2020-11-28 03:07:53,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:07:53,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:53,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:07:53,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:07:53,013 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 11 states. [2020-11-28 03:07:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:53,479 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-11-28 03:07:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:07:53,480 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-11-28 03:07:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:53,481 INFO L225 Difference]: With dead ends: 67 [2020-11-28 03:07:53,481 INFO L226 Difference]: Without dead ends: 67 [2020-11-28 03:07:53,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:07:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-28 03:07:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2020-11-28 03:07:53,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-28 03:07:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-11-28 03:07:53,486 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 32 [2020-11-28 03:07:53,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:53,487 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-11-28 03:07:53,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:07:53,487 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-11-28 03:07:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:07:53,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:53,488 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:53,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:07:53,488 INFO L429 AbstractCegarLoop]: === Iteration 10 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash 124645685, now seen corresponding path program 1 times [2020-11-28 03:07:53,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:53,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614903290] [2020-11-28 03:07:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-28 03:07:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-28 03:07:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,732 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:07:53,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614903290] [2020-11-28 03:07:53,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:53,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:07:53,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167041105] [2020-11-28 03:07:53,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:07:53,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:53,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:07:53,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:07:53,734 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 12 states. [2020-11-28 03:07:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:54,480 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-11-28 03:07:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:07:54,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2020-11-28 03:07:54,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:54,482 INFO L225 Difference]: With dead ends: 125 [2020-11-28 03:07:54,482 INFO L226 Difference]: Without dead ends: 125 [2020-11-28 03:07:54,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:07:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-28 03:07:54,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 103. [2020-11-28 03:07:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-28 03:07:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2020-11-28 03:07:54,495 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 32 [2020-11-28 03:07:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:54,496 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2020-11-28 03:07:54,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:07:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2020-11-28 03:07:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:07:54,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:54,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:54,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:07:54,504 INFO L429 AbstractCegarLoop]: === Iteration 11 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:54,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1155217993, now seen corresponding path program 1 times [2020-11-28 03:07:54,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:54,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599111395] [2020-11-28 03:07:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:54,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:07:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:54,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-28 03:07:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-28 03:07:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:07:54,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599111395] [2020-11-28 03:07:54,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:54,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:07:54,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359964605] [2020-11-28 03:07:54,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:07:54,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:54,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:07:54,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:07:54,731 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand 12 states. [2020-11-28 03:07:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:55,378 INFO L93 Difference]: Finished difference Result 124 states and 154 transitions. [2020-11-28 03:07:55,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:07:55,379 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2020-11-28 03:07:55,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:55,380 INFO L225 Difference]: With dead ends: 124 [2020-11-28 03:07:55,380 INFO L226 Difference]: Without dead ends: 124 [2020-11-28 03:07:55,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:07:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-28 03:07:55,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 70. [2020-11-28 03:07:55,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-28 03:07:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2020-11-28 03:07:55,387 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 32 [2020-11-28 03:07:55,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:55,387 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2020-11-28 03:07:55,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:07:55,387 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2020-11-28 03:07:55,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:07:55,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:55,388 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:55,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:07:55,389 INFO L429 AbstractCegarLoop]: === Iteration 12 === [build_nondet_StringErr3REQUIRES_VIOLATION, build_nondet_StringErr2REQUIRES_VIOLATION, build_nondet_StringErr1REQUIRES_VIOLATION, build_nondet_StringErr0REQUIRES_VIOLATION, cstrpbrkErr5REQUIRES_VIOLATION, cstrpbrkErr0REQUIRES_VIOLATION, cstrpbrkErr1REQUIRES_VIOLATION, cstrpbrkErr6REQUIRES_VIOLATION, cstrpbrkErr7REQUIRES_VIOLATION, cstrpbrkErr2REQUIRES_VIOLATION, cstrpbrkErr3REQUIRES_VIOLATION, cstrpbrkErr8REQUIRES_VIOLATION, cstrpbrkErr9REQUIRES_VIOLATION, cstrpbrkErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:07:55,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:55,389 INFO L82 PathProgramCache]: Analyzing trace with hash -431506202, now seen corresponding path program 1 times [2020-11-28 03:07:55,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:55,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835611474] [2020-11-28 03:07:55,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:55,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:55,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:55,442 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:55,442 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:07:55,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:07:55,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:07:55 BoogieIcfgContainer [2020-11-28 03:07:55,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:07:55,473 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:07:55,473 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:07:55,473 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:07:55,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:42" (3/4) ... [2020-11-28 03:07:55,476 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:07:55,523 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db3f5ebb-8e49-4234-b2e8-1cf254cc8c66/bin/uautomizer/witness.graphml [2020-11-28 03:07:55,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:07:55,525 INFO L168 Benchmark]: Toolchain (without parser) took 14509.74 ms. Allocated memory was 115.3 MB in the beginning and 211.8 MB in the end (delta: 96.5 MB). Free memory was 83.2 MB in the beginning and 143.8 MB in the end (delta: -60.6 MB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:55,525 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 75.5 MB. Free memory was 36.0 MB in the beginning and 35.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:07:55,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.10 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 80.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:55,526 INFO L168 Benchmark]: Boogie Preprocessor took 113.29 ms. Allocated memory is still 115.3 MB. Free memory was 80.3 MB in the beginning and 77.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:55,527 INFO L168 Benchmark]: RCFGBuilder took 959.36 ms. Allocated memory is still 115.3 MB. Free memory was 77.5 MB in the beginning and 90.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:55,528 INFO L168 Benchmark]: TraceAbstraction took 12829.91 ms. Allocated memory was 115.3 MB in the beginning and 211.8 MB in the end (delta: 96.5 MB). Free memory was 90.3 MB in the beginning and 145.9 MB in the end (delta: -55.6 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:55,528 INFO L168 Benchmark]: Witness Printer took 50.53 ms. Allocated memory is still 211.8 MB. Free memory was 145.9 MB in the beginning and 143.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:55,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 75.5 MB. Free memory was 36.0 MB in the beginning and 35.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 544.10 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 80.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.29 ms. Allocated memory is still 115.3 MB. Free memory was 80.3 MB in the beginning and 77.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 959.36 ms. Allocated memory is still 115.3 MB. Free memory was 77.5 MB in the beginning and 90.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12829.91 ms. Allocated memory was 115.3 MB in the beginning and 211.8 MB in the end (delta: 96.5 MB). Free memory was 90.3 MB in the beginning and 145.9 MB in the end (delta: -55.6 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * Witness Printer took 50.53 ms. Allocated memory is still 211.8 MB. Free memory was 145.9 MB in the beginning and 143.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L546] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 VAL [length=1] [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, malloc(length * sizeof(char))={-1:0}, nondetString={-1:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, malloc(length * sizeof(char))={-1:0}, nondetString={-1:0}] [L527] nondetString[length-1] = '\0' VAL [i=0, length=1, malloc(length * sizeof(char))={-1:0}, nondetString={-1:0}] [L528] return nondetString; VAL [\result={-1:0}, i=0, length=1, malloc(length * sizeof(char))={-1:0}, nondetString={-1:0}] [L546] RET, EXPR build_nondet_String() VAL [build_nondet_String()={-1:0}] [L546] char* s1 = build_nondet_String(); [L547] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 VAL [length=1] [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, malloc(length * sizeof(char))={-2:0}, nondetString={-2:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, malloc(length * sizeof(char))={-2:0}, nondetString={-2:0}] [L527] nondetString[length-1] = '\0' VAL [i=0, length=1, malloc(length * sizeof(char))={-2:0}, nondetString={-2:0}] [L528] return nondetString; VAL [\result={-2:0}, i=0, length=1, malloc(length * sizeof(char))={-2:0}, nondetString={-2:0}] [L547] RET, EXPR build_nondet_String() VAL [build_nondet_String()={-2:0}, s1={-1:0}] [L547] char* s2 = build_nondet_String(); [L548] CALL cstrpbrk(s1,s2) VAL [s1={-1:0}, s2={-2:0}] [L532] const char *sc1; [L533] const char *s; [L534] int c; [L535] sc1 = s1 VAL [s1={-1:0}, s1={-1:0}, s2={-2:0}, s2={-2:0}, sc1={-1:0}] [L535] EXPR \read(*sc1) VAL [\read(*sc1)=0, s1={-1:0}, s1={-1:0}, s2={-2:0}, s2={-2:0}, sc1={-1:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={-1:0}, s1={-1:0}, s2={-2:0}, s2={-2:0}, sc1={-1:0}] [L548] RET cstrpbrk(s1,s2) VAL [cstrpbrk(s1,s2)={0:0}, s1={-1:0}, s2={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 88 locations, 23 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.7s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 530 SDtfs, 1635 SDslu, 1192 SDs, 0 SdLazy, 3686 SolverSat, 154 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 208 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 323 ConstructedInterpolants, 15 QuantifiedInterpolants, 52063 SizeOfPredicates, 30 NumberOfNonLiveVariables, 502 ConjunctsInSsa, 109 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 42/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...