./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/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 fa1df4216228ace3c3c1088507575f9600e9db06 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:48,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:48,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:48,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:48,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:48,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:48,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:48,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:48,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:48,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:48,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:48,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:48,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:48,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:48,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:48,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:48,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:48,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:48,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:48,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:48,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:48,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:48,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:48,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:48,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:48,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:48,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:48,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:48,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:48,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:48,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:48,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:48,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:48,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:48,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:48,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:48,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:48,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:48,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:48,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:48,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:48,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:02:48,077 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:48,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:48,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:48,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:48,087 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:48,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:48,088 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:48,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:48,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:48,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:48,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:48,089 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:02:48,089 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:02:48,089 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:02:48,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:48,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:48,089 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:48,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:48,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:48,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:48,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:48,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:48,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:48,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:48,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:48,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:48,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/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 -> fa1df4216228ace3c3c1088507575f9600e9db06 [2019-10-22 09:02:48,125 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:48,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:48,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:48,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:48,140 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:48,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i [2019-10-22 09:02:48,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/data/2be64892a/a6ecafd1f91b4edab343f3964ca22035/FLAG2ec45062a [2019-10-22 09:02:48,662 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:48,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i [2019-10-22 09:02:48,678 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/data/2be64892a/a6ecafd1f91b4edab343f3964ca22035/FLAG2ec45062a [2019-10-22 09:02:49,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/data/2be64892a/a6ecafd1f91b4edab343f3964ca22035 [2019-10-22 09:02:49,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:49,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:02:49,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:49,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:49,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:49,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb5fa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49, skipping insertion in model container [2019-10-22 09:02:49,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,181 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:49,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:49,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:49,584 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:49,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:49,676 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:49,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49 WrapperNode [2019-10-22 09:02:49,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:49,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:49,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:49,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:49,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:49,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:49,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:49,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:49,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:02:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:02:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:02:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:02:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:02:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:02:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2019-10-22 09:02:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:02:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:02:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:02:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:02:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:02:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:02:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:02:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:02:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:02:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:02:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:02:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:02:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:02:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:02:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:02:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:02:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:02:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:02:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:02:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:02:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:02:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:02:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:02:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:02:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:02:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:50,312 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:50,312 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-22 09:02:50,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:50 BoogieIcfgContainer [2019-10-22 09:02:50,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:50,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:50,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:50,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:50,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:49" (1/3) ... [2019-10-22 09:02:50,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ae0b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:50, skipping insertion in model container [2019-10-22 09:02:50,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (2/3) ... [2019-10-22 09:02:50,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ae0b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:50, skipping insertion in model container [2019-10-22 09:02:50,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:50" (3/3) ... [2019-10-22 09:02:50,322 INFO L109 eAbstractionObserver]: Analyzing ICFG stroeder2-alloca-1.i [2019-10-22 09:02:50,332 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:50,339 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-10-22 09:02:50,351 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-10-22 09:02:50,370 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:50,370 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:02:50,370 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:50,370 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:50,370 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:50,371 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:50,371 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:50,371 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-10-22 09:02:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:02:50,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,397 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,398 INFO L410 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,406 INFO L82 PathProgramCache]: Analyzing trace with hash 828968537, now seen corresponding path program 1 times [2019-10-22 09:02:50,413 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665662571] [2019-10-22 09:02:50,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665662571] [2019-10-22 09:02:50,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:50,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681017862] [2019-10-22 09:02:50,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:50,629 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:50,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:50,640 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-10-22 09:02:50,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,779 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-10-22 09:02:50,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:50,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 09:02:50,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:50,790 INFO L225 Difference]: With dead ends: 38 [2019-10-22 09:02:50,790 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 09:02:50,792 INFO L600 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 [2019-10-22 09:02:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 09:02:50,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-22 09:02:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 09:02:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-10-22 09:02:50,829 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 10 [2019-10-22 09:02:50,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:50,829 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-10-22 09:02:50,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-10-22 09:02:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:02:50,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,831 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,832 INFO L82 PathProgramCache]: Analyzing trace with hash 828968538, now seen corresponding path program 1 times [2019-10-22 09:02:50,832 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395011889] [2019-10-22 09:02:50,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395011889] [2019-10-22 09:02:50,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:50,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774354111] [2019-10-22 09:02:50,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:50,939 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:50,939 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 6 states. [2019-10-22 09:02:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:51,236 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2019-10-22 09:02:51,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:51,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-22 09:02:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:51,238 INFO L225 Difference]: With dead ends: 39 [2019-10-22 09:02:51,238 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:02:51,239 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:51,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:02:51,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-10-22 09:02:51,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-22 09:02:51,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2019-10-22 09:02:51,247 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 10 [2019-10-22 09:02:51,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:51,247 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2019-10-22 09:02:51,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2019-10-22 09:02:51,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:51,249 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:51,249 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:51,249 INFO L410 AbstractCegarLoop]: === Iteration 3 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:51,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,250 INFO L82 PathProgramCache]: Analyzing trace with hash 521590813, now seen corresponding path program 1 times [2019-10-22 09:02:51,250 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544630139] [2019-10-22 09:02:51,251 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,251 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:51,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544630139] [2019-10-22 09:02:51,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928477565] [2019-10-22 09:02:51,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:51,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:51,503 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:51,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-10-22 09:02:51,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959611903] [2019-10-22 09:02:51,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:51,504 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:51,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:51,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:51,505 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 5 states. [2019-10-22 09:02:51,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:51,536 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2019-10-22 09:02:51,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:51,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-22 09:02:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:51,540 INFO L225 Difference]: With dead ends: 47 [2019-10-22 09:02:51,540 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 09:02:51,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 09:02:51,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-10-22 09:02:51,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 09:02:51,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-10-22 09:02:51,549 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 14 [2019-10-22 09:02:51,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:51,550 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-10-22 09:02:51,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:51,550 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-10-22 09:02:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:51,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:51,551 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:51,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:51,752 INFO L410 AbstractCegarLoop]: === Iteration 4 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:51,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,752 INFO L82 PathProgramCache]: Analyzing trace with hash -287755813, now seen corresponding path program 1 times [2019-10-22 09:02:51,753 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85507656] [2019-10-22 09:02:51,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:51,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85507656] [2019-10-22 09:02:51,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570459263] [2019-10-22 09:02:51,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 09:02:51,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:52,030 INFO L375 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 8 treesize of output 7 [2019-10-22 09:02:52,030 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:02:52,037 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:02:52,038 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:02:52,038 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-10-22 09:02:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:52,075 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:02:52,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-10-22 09:02:52,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389437169] [2019-10-22 09:02:52,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:02:52,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:52,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:02:52,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:52,077 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 8 states. [2019-10-22 09:02:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:52,205 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-10-22 09:02:52,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:52,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-22 09:02:52,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:52,206 INFO L225 Difference]: With dead ends: 44 [2019-10-22 09:02:52,207 INFO L226 Difference]: Without dead ends: 44 [2019-10-22 09:02:52,207 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-22 09:02:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2019-10-22 09:02:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-22 09:02:52,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-10-22 09:02:52,212 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 14 [2019-10-22 09:02:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:52,212 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-10-22 09:02:52,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:02:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-10-22 09:02:52,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:02:52,213 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:52,213 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:52,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:52,414 INFO L410 AbstractCegarLoop]: === Iteration 5 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:52,414 INFO L82 PathProgramCache]: Analyzing trace with hash -479908588, now seen corresponding path program 1 times [2019-10-22 09:02:52,415 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:52,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634003650] [2019-10-22 09:02:52,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:52,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634003650] [2019-10-22 09:02:52,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:52,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:52,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776255904] [2019-10-22 09:02:52,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:52,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:52,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:52,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:52,483 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 7 states. [2019-10-22 09:02:52,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:52,611 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-10-22 09:02:52,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:52,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-22 09:02:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:52,614 INFO L225 Difference]: With dead ends: 42 [2019-10-22 09:02:52,614 INFO L226 Difference]: Without dead ends: 42 [2019-10-22 09:02:52,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:02:52,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-22 09:02:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2019-10-22 09:02:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 09:02:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2019-10-22 09:02:52,620 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 17 [2019-10-22 09:02:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:52,620 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-10-22 09:02:52,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:52,620 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2019-10-22 09:02:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:02:52,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:52,621 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:52,621 INFO L410 AbstractCegarLoop]: === Iteration 6 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:52,621 INFO L82 PathProgramCache]: Analyzing trace with hash -479908587, now seen corresponding path program 1 times [2019-10-22 09:02:52,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:52,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069705087] [2019-10-22 09:02:52,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:52,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:52,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069705087] [2019-10-22 09:02:52,711 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:52,711 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:52,711 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976923461] [2019-10-22 09:02:52,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:52,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:52,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:52,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:52,712 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 7 states. [2019-10-22 09:02:52,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:52,940 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-10-22 09:02:52,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:02:52,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-22 09:02:52,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:52,942 INFO L225 Difference]: With dead ends: 53 [2019-10-22 09:02:52,942 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 09:02:52,943 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 09:02:52,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2019-10-22 09:02:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 09:02:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-10-22 09:02:52,948 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 17 [2019-10-22 09:02:52,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:52,948 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-10-22 09:02:52,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-10-22 09:02:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:02:52,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:52,949 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:52,950 INFO L410 AbstractCegarLoop]: === Iteration 7 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:52,951 INFO L82 PathProgramCache]: Analyzing trace with hash 571455031, now seen corresponding path program 1 times [2019-10-22 09:02:52,951 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:52,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813585199] [2019-10-22 09:02:52,951 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,952 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:52,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:53,053 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813585199] [2019-10-22 09:02:53,053 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:53,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:53,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477153155] [2019-10-22 09:02:53,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:53,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:53,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:53,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:53,054 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 7 states. [2019-10-22 09:02:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:53,227 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2019-10-22 09:02:53,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 09:02:53,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-10-22 09:02:53,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:53,229 INFO L225 Difference]: With dead ends: 69 [2019-10-22 09:02:53,229 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 09:02:53,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:02:53,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 09:02:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2019-10-22 09:02:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 09:02:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-10-22 09:02:53,234 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 21 [2019-10-22 09:02:53,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:53,234 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-10-22 09:02:53,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:53,234 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-10-22 09:02:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:02:53,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:53,235 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:53,235 INFO L410 AbstractCegarLoop]: === Iteration 8 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 606893224, now seen corresponding path program 1 times [2019-10-22 09:02:53,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:53,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816195124] [2019-10-22 09:02:53,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:53,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816195124] [2019-10-22 09:02:53,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798524772] [2019-10-22 09:02:53,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:02:53,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:53,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:53,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2019-10-22 09:02:53,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254782472] [2019-10-22 09:02:53,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:53,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:53,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:53,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:02:53,480 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2019-10-22 09:02:53,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:53,525 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2019-10-22 09:02:53,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:53,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-10-22 09:02:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:53,530 INFO L225 Difference]: With dead ends: 62 [2019-10-22 09:02:53,530 INFO L226 Difference]: Without dead ends: 62 [2019-10-22 09:02:53,530 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:02:53,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-10-22 09:02:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2019-10-22 09:02:53,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-10-22 09:02:53,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-10-22 09:02:53,534 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 21 [2019-10-22 09:02:53,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:53,535 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2019-10-22 09:02:53,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2019-10-22 09:02:53,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:02:53,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:53,536 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:53,736 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,736 INFO L410 AbstractCegarLoop]: === Iteration 9 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:53,737 INFO L82 PathProgramCache]: Analyzing trace with hash -672970454, now seen corresponding path program 1 times [2019-10-22 09:02:53,737 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:53,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429558743] [2019-10-22 09:02:53,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:53,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:53,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429558743] [2019-10-22 09:02:53,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026689338] [2019-10-22 09:02:53,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:53,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:02:53,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:54,060 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:02:54,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2019-10-22 09:02:54,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875470990] [2019-10-22 09:02:54,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-22 09:02:54,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:54,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-22 09:02:54,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:02:54,061 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 16 states. [2019-10-22 09:02:54,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:54,675 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2019-10-22 09:02:54,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 09:02:54,676 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2019-10-22 09:02:54,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:54,677 INFO L225 Difference]: With dead ends: 85 [2019-10-22 09:02:54,677 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 09:02:54,678 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2019-10-22 09:02:54,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 09:02:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 54. [2019-10-22 09:02:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 09:02:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2019-10-22 09:02:54,688 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 21 [2019-10-22 09:02:54,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:54,689 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2019-10-22 09:02:54,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-22 09:02:54,689 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2019-10-22 09:02:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:02:54,689 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:54,689 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:54,893 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:54,893 INFO L410 AbstractCegarLoop]: === Iteration 10 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:02:54,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:54,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1745683382, now seen corresponding path program 1 times [2019-10-22 09:02:54,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:54,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083860430] [2019-10-22 09:02:54,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:54,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:54,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 09:02:54,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083860430] [2019-10-22 09:02:54,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:54,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:55,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97998390] [2019-10-22 09:02:55,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:55,000 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:55,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:55,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:55,001 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2019-10-22 09:02:55,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:55,081 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2019-10-22 09:02:55,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:55,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-10-22 09:02:55,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:55,082 INFO L225 Difference]: With dead ends: 73 [2019-10-22 09:02:55,082 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:55,082 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:55,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:55,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:55,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-10-22 09:02:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:55,083 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:55,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:55,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:55,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:55 BoogieIcfgContainer [2019-10-22 09:02:55,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:55,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:55,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:55,088 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:55,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:50" (3/4) ... [2019-10-22 09:02:55,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:55,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-10-22 09:02:55,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sumOfThirdBytes [2019-10-22 09:02:55,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-10-22 09:02:55,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-10-22 09:02:55,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-10-22 09:02:55,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-10-22 09:02:55,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-10-22 09:02:55,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-10-22 09:02:55,102 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-10-22 09:02:55,102 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 09:02:55,103 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:02:55,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_841d3c36-4c60-4989-97ff-66374b86ba0e/bin/uautomizer/witness.graphml [2019-10-22 09:02:55,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:55,149 INFO L168 Benchmark]: Toolchain (without parser) took 5983.40 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.6 MB). Free memory was 944.5 MB in the beginning and 900.0 MB in the end (delta: 44.5 MB). Peak memory consumption was 273.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:55,149 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:55,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:55,150 INFO L168 Benchmark]: Boogie Preprocessor took 64.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:55,150 INFO L168 Benchmark]: RCFGBuilder took 571.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:55,151 INFO L168 Benchmark]: TraceAbstraction took 4773.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 910.4 MB in the end (delta: 171.1 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:55,151 INFO L168 Benchmark]: Witness Printer took 60.09 ms. Allocated memory is still 1.3 GB. Free memory was 910.4 MB in the beginning and 900.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:55,153 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 510.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 571.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4773.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 910.4 MB in the end (delta: 171.1 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. * Witness Printer took 60.09 ms. Allocated memory is still 1.3 GB. Free memory was 910.4 MB in the beginning and 900.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 54 locations, 9 error locations. Result: SAFE, OverallTime: 4.7s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 258 SDtfs, 597 SDslu, 400 SDs, 0 SdLazy, 974 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 76 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 20093 SizeOfPredicates, 12 NumberOfNonLiveVariables, 320 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 19/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...