./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/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:10,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:19:10,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:19:10,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:19:10,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:19:10,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:19:10,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:19:10,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:19:10,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:19:10,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:19:10,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:19:10,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:19:10,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:19:10,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:19:10,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:19:10,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:19:10,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:19:10,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:19:10,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:19:10,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:19:10,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:19:10,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:19:10,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:19:10,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:19:10,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:19:10,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:19:10,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:19:10,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:19:10,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:19:10,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:19:10,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:19:10,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:19:10,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:19:10,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:19:10,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:19:10,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:19:10,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:19:10,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:19:10,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:19:10,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:19:10,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:19:10,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 22:19:10,117 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:19:10,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:19:10,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:19:10,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:19:10,119 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:19:10,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:19:10,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:19:10,120 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:19:10,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:19:10,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:19:10,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:19:10,120 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 22:19:10,120 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 22:19:10,121 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 22:19:10,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:19:10,121 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:19:10,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:19:10,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:19:10,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:19:10,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:19:10,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:19:10,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:19:10,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:19:10,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:19:10,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:19:10,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:19:10,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:10,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:19:10,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:19:10,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:19:10,191 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:19:10,192 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:19:10,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i [2019-11-15 22:19:10,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/data/457b78103/1e11ff9a73074419a89137ae482b69ec/FLAG15fefe2dd [2019-11-15 22:19:10,896 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:19:10,899 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/sv-benchmarks/c/array-memsafety/stroeder2-alloca-1.i [2019-11-15 22:19:10,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/data/457b78103/1e11ff9a73074419a89137ae482b69ec/FLAG15fefe2dd [2019-11-15 22:19:11,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/data/457b78103/1e11ff9a73074419a89137ae482b69ec [2019-11-15 22:19:11,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:19:11,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 22:19:11,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:19:11,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:19:11,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:19:11,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf580bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11, skipping insertion in model container [2019-11-15 22:19:11,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,247 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:19:11,309 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:19:11,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:19:11,710 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:19:11,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:19:11,839 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:19:11,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11 WrapperNode [2019-11-15 22:19:11,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:19:11,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:19:11,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:19:11,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:19:11,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... [2019-11-15 22:19:11,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:19:11,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:19:11,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:19:11,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:19:11,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 22:19:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:19:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 22:19:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 22:19:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 22:19:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 22:19:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 22:19:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2019-11-15 22:19:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 22:19:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 22:19:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 22:19:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 22:19:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 22:19:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 22:19:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 22:19:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 22:19:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 22:19:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 22:19:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 22:19:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 22:19:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 22:19:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 22:19:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 22:19:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 22:19:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 22:19:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 22:19:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 22:19:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 22:19:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 22:19:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 22:19:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 22:19:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 22:19:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 22:19:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 22:19:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 22:19:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 22:19:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 22:19:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 22:19:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 22:19:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 22:19:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 22:19:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 22:19:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 22:19:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 22:19:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 22:19:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 22:19:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 22:19:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 22:19:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 22:19:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 22:19:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 22:19:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 22:19:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 22:19:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 22:19:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 22:19:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 22:19:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 22:19:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 22:19:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 22:19:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 22:19:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 22:19:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 22:19:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 22:19:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 22:19:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 22:19:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 22:19:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 22:19:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 22:19:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 22:19:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 22:19:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 22:19:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 22:19:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 22:19:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 22:19:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 22:19:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 22:19:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 22:19:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 22:19:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 22:19:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 22:19:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 22:19:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 22:19:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 22:19:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 22:19:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 22:19:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 22:19:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 22:19:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 22:19:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 22:19:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 22:19:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 22:19:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 22:19:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 22:19:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 22:19:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 22:19:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 22:19:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 22:19:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 22:19:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 22:19:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 22:19:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 22:19:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 22:19:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 22:19:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 22:19:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 22:19:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 22:19:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 22:19:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 22:19:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 22:19:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 22:19:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 22:19:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 22:19:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 22:19:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 22:19:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 22:19:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 22:19:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 22:19:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2019-11-15 22:19:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:19:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:19:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 22:19:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:19:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:19:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 22:19:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:19:12,717 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:19:12,717 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-15 22:19:12,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:19:12 BoogieIcfgContainer [2019-11-15 22:19:12,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:19:12,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:19:12,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:19:12,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:19:12,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:19:11" (1/3) ... [2019-11-15 22:19:12,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431feaf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:19:12, skipping insertion in model container [2019-11-15 22:19:12,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:19:11" (2/3) ... [2019-11-15 22:19:12,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431feaf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:19:12, skipping insertion in model container [2019-11-15 22:19:12,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:19:12" (3/3) ... [2019-11-15 22:19:12,732 INFO L109 eAbstractionObserver]: Analyzing ICFG stroeder2-alloca-1.i [2019-11-15 22:19:12,743 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:19:12,753 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-11-15 22:19:12,765 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-11-15 22:19:12,787 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:19:12,787 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 22:19:12,787 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:19:12,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:19:12,788 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:19:12,797 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:19:12,797 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:19:12,797 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:19:12,816 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-15 22:19:12,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:19:12,826 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:12,827 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:19:12,829 INFO L410 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:12,834 INFO L82 PathProgramCache]: Analyzing trace with hash 828968537, now seen corresponding path program 1 times [2019-11-15 22:19:12,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:12,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508221185] [2019-11-15 22:19:12,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:12,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:12,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:13,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:13,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508221185] [2019-11-15 22:19:13,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:19:13,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:19:13,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45191740] [2019-11-15 22:19:13,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:19:13,052 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:13,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:19:13,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:19:13,067 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-11-15 22:19:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:13,236 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-15 22:19:13,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:19:13,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 22:19:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:13,252 INFO L225 Difference]: With dead ends: 38 [2019-11-15 22:19:13,252 INFO L226 Difference]: Without dead ends: 35 [2019-11-15 22:19:13,255 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 [2019-11-15 22:19:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-15 22:19:13,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-15 22:19:13,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-15 22:19:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-15 22:19:13,310 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 10 [2019-11-15 22:19:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:13,310 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-15 22:19:13,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:19:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-15 22:19:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:19:13,312 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:13,312 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:19:13,312 INFO L410 AbstractCegarLoop]: === Iteration 2 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:13,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:13,313 INFO L82 PathProgramCache]: Analyzing trace with hash 828968538, now seen corresponding path program 1 times [2019-11-15 22:19:13,313 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:13,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405925310] [2019-11-15 22:19:13,314 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:13,314 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:13,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:13,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405925310] [2019-11-15 22:19:13,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:19:13,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:19:13,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139833113] [2019-11-15 22:19:13,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:19:13,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:13,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:19:13,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:19:13,553 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 6 states. [2019-11-15 22:19:13,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:13,831 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2019-11-15 22:19:13,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:19:13,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-15 22:19:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:13,833 INFO L225 Difference]: With dead ends: 39 [2019-11-15 22:19:13,833 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 22:19:13,834 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:19:13,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 22:19:13,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-11-15 22:19:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-15 22:19:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2019-11-15 22:19:13,841 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 10 [2019-11-15 22:19:13,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:13,842 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2019-11-15 22:19:13,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:19:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2019-11-15 22:19:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:19:13,843 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:13,843 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:19:13,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:13,844 INFO L82 PathProgramCache]: Analyzing trace with hash 521590813, now seen corresponding path program 1 times [2019-11-15 22:19:13,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:13,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652092086] [2019-11-15 22:19:13,844 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:13,844 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:13,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:13,974 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652092086] [2019-11-15 22:19:13,974 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559240354] [2019-11-15 22:19:13,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:14,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:19:14,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:19:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:14,179 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 22:19:14,179 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-15 22:19:14,179 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625982073] [2019-11-15 22:19:14,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:19:14,180 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:14,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:19:14,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:19:14,181 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 5 states. [2019-11-15 22:19:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:14,226 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2019-11-15 22:19:14,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:19:14,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-15 22:19:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:14,230 INFO L225 Difference]: With dead ends: 47 [2019-11-15 22:19:14,230 INFO L226 Difference]: Without dead ends: 47 [2019-11-15 22:19:14,230 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 [2019-11-15 22:19:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-15 22:19:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-11-15 22:19:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-15 22:19:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-11-15 22:19:14,246 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 14 [2019-11-15 22:19:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:14,248 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-11-15 22:19:14,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:19:14,248 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-11-15 22:19:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:19:14,249 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:14,250 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:19:14,454 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:19:14,455 INFO L410 AbstractCegarLoop]: === Iteration 4 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:14,455 INFO L82 PathProgramCache]: Analyzing trace with hash -287755813, now seen corresponding path program 1 times [2019-11-15 22:19:14,455 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:14,455 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118198110] [2019-11-15 22:19:14,455 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:14,456 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:14,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:14,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118198110] [2019-11-15 22:19:14,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584998985] [2019-11-15 22:19:14,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:14,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 22:19:14,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:19:14,867 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 [2019-11-15 22:19:14,870 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 22:19:14,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:19:14,881 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 22:19:14,881 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-11-15 22:19:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:14,941 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:19:14,941 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-11-15 22:19:14,941 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157751601] [2019-11-15 22:19:14,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:19:14,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:14,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:19:14,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:19:14,943 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 8 states. [2019-11-15 22:19:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:15,160 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-15 22:19:15,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:19:15,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 22:19:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:15,162 INFO L225 Difference]: With dead ends: 44 [2019-11-15 22:19:15,163 INFO L226 Difference]: Without dead ends: 44 [2019-11-15 22:19:15,163 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 [2019-11-15 22:19:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-15 22:19:15,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2019-11-15 22:19:15,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-15 22:19:15,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-11-15 22:19:15,173 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 14 [2019-11-15 22:19:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:15,174 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-11-15 22:19:15,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:19:15,174 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-11-15 22:19:15,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 22:19:15,175 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:15,176 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:19:15,380 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:19:15,380 INFO L410 AbstractCegarLoop]: === Iteration 5 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:15,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:15,381 INFO L82 PathProgramCache]: Analyzing trace with hash -479908588, now seen corresponding path program 1 times [2019-11-15 22:19:15,381 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:15,381 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587061024] [2019-11-15 22:19:15,381 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:15,381 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:15,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:15,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587061024] [2019-11-15 22:19:15,491 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:19:15,492 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:19:15,492 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534985543] [2019-11-15 22:19:15,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:19:15,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:15,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:19:15,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:19:15,493 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 7 states. [2019-11-15 22:19:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:15,668 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-11-15 22:19:15,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:19:15,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 22:19:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:15,672 INFO L225 Difference]: With dead ends: 42 [2019-11-15 22:19:15,672 INFO L226 Difference]: Without dead ends: 42 [2019-11-15 22:19:15,673 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 [2019-11-15 22:19:15,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-15 22:19:15,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2019-11-15 22:19:15,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-15 22:19:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2019-11-15 22:19:15,678 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 17 [2019-11-15 22:19:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:15,679 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-11-15 22:19:15,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:19:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2019-11-15 22:19:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 22:19:15,680 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:15,680 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:19:15,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:15,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:15,681 INFO L82 PathProgramCache]: Analyzing trace with hash -479908587, now seen corresponding path program 1 times [2019-11-15 22:19:15,682 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:15,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988563684] [2019-11-15 22:19:15,682 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:15,682 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:15,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:19:15,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988563684] [2019-11-15 22:19:15,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:19:15,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:19:15,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101010283] [2019-11-15 22:19:15,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:19:15,818 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:15,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:19:15,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:19:15,819 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 7 states. [2019-11-15 22:19:16,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:16,153 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-15 22:19:16,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:19:16,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 22:19:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:16,155 INFO L225 Difference]: With dead ends: 53 [2019-11-15 22:19:16,155 INFO L226 Difference]: Without dead ends: 53 [2019-11-15 22:19:16,155 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 [2019-11-15 22:19:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-15 22:19:16,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2019-11-15 22:19:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 22:19:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-11-15 22:19:16,162 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 17 [2019-11-15 22:19:16,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:16,162 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-11-15 22:19:16,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:19:16,163 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-11-15 22:19:16,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 22:19:16,164 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:16,164 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] [2019-11-15 22:19:16,164 INFO L410 AbstractCegarLoop]: === Iteration 7 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:16,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:16,165 INFO L82 PathProgramCache]: Analyzing trace with hash 571455031, now seen corresponding path program 1 times [2019-11-15 22:19:16,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:16,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028011339] [2019-11-15 22:19:16,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:16,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:16,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:19:16,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028011339] [2019-11-15 22:19:16,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:19:16,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 22:19:16,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359634722] [2019-11-15 22:19:16,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:19:16,294 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:16,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:19:16,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:19:16,295 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 7 states. [2019-11-15 22:19:16,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:16,554 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2019-11-15 22:19:16,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 22:19:16,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-15 22:19:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:16,556 INFO L225 Difference]: With dead ends: 69 [2019-11-15 22:19:16,556 INFO L226 Difference]: Without dead ends: 66 [2019-11-15 22:19:16,556 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 [2019-11-15 22:19:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-15 22:19:16,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2019-11-15 22:19:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 22:19:16,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-11-15 22:19:16,562 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 21 [2019-11-15 22:19:16,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:16,562 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-11-15 22:19:16,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:19:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-11-15 22:19:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 22:19:16,563 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:16,563 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] [2019-11-15 22:19:16,563 INFO L410 AbstractCegarLoop]: === Iteration 8 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:16,564 INFO L82 PathProgramCache]: Analyzing trace with hash 606893224, now seen corresponding path program 1 times [2019-11-15 22:19:16,564 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:16,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401459358] [2019-11-15 22:19:16,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:16,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:16,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:19:16,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401459358] [2019-11-15 22:19:16,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561399558] [2019-11-15 22:19:16,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:16,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 22:19:16,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:19:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:19:16,884 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 22:19:16,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2019-11-15 22:19:16,884 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744276690] [2019-11-15 22:19:16,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:19:16,885 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:16,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:19:16,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-11-15 22:19:16,885 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2019-11-15 22:19:16,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:16,946 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2019-11-15 22:19:16,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:19:16,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-15 22:19:16,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:16,955 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:19:16,955 INFO L226 Difference]: Without dead ends: 62 [2019-11-15 22:19:16,955 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 [2019-11-15 22:19:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-15 22:19:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2019-11-15 22:19:16,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 22:19:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-11-15 22:19:16,966 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 21 [2019-11-15 22:19:16,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:16,966 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2019-11-15 22:19:16,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:19:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2019-11-15 22:19:16,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 22:19:16,968 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:16,968 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] [2019-11-15 22:19:17,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:19:17,172 INFO L410 AbstractCegarLoop]: === Iteration 9 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:17,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:17,172 INFO L82 PathProgramCache]: Analyzing trace with hash -672970454, now seen corresponding path program 1 times [2019-11-15 22:19:17,172 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:17,173 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888074368] [2019-11-15 22:19:17,173 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:17,173 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:17,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:19:17,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888074368] [2019-11-15 22:19:17,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871648455] [2019-11-15 22:19:17,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/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 [2019-11-15 22:19:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:17,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 22:19:17,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:19:17,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:19:17,637 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:19:17,637 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2019-11-15 22:19:17,637 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943739842] [2019-11-15 22:19:17,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 22:19:17,638 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:17,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 22:19:17,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-11-15 22:19:17,639 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 16 states. [2019-11-15 22:19:18,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:18,436 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2019-11-15 22:19:18,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-15 22:19:18,436 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2019-11-15 22:19:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:18,438 INFO L225 Difference]: With dead ends: 85 [2019-11-15 22:19:18,438 INFO L226 Difference]: Without dead ends: 85 [2019-11-15 22:19:18,439 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2019-11-15 22:19:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-11-15 22:19:18,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 54. [2019-11-15 22:19:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 22:19:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2019-11-15 22:19:18,446 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 21 [2019-11-15 22:19:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:18,446 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2019-11-15 22:19:18,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 22:19:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2019-11-15 22:19:18,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 22:19:18,447 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:19:18,448 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] [2019-11-15 22:19:18,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:19:18,649 INFO L410 AbstractCegarLoop]: === Iteration 10 === [sumOfThirdBytesErr2REQUIRES_VIOLATION, sumOfThirdBytesErr3REQUIRES_VIOLATION, sumOfThirdBytesErr4REQUIRES_VIOLATION, sumOfThirdBytesErr5REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 22:19:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:19:18,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1745683382, now seen corresponding path program 1 times [2019-11-15 22:19:18,649 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:19:18,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550845757] [2019-11-15 22:19:18,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:18,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:19:18,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:19:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:19:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 22:19:18,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550845757] [2019-11-15 22:19:18,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:19:18,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:19:18,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067672742] [2019-11-15 22:19:18,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:19:18,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:19:18,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:19:18,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:19:18,771 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2019-11-15 22:19:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:19:18,914 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2019-11-15 22:19:18,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:19:18,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-15 22:19:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:19:18,915 INFO L225 Difference]: With dead ends: 73 [2019-11-15 22:19:18,915 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:19:18,916 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 [2019-11-15 22:19:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:19:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:19:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:19:18,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:19:18,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-11-15 22:19:18,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:19:18,917 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:19:18,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:19:18,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:19:18,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:19:18,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:19:18 BoogieIcfgContainer [2019-11-15 22:19:18,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:19:18,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:19:18,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:19:18,924 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:19:18,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:19:12" (3/4) ... [2019-11-15 22:19:18,928 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:19:18,935 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 22:19:18,935 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sumOfThirdBytes [2019-11-15 22:19:18,935 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-15 22:19:18,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-15 22:19:18,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-15 22:19:18,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-15 22:19:18,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 22:19:18,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-15 22:19:18,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-15 22:19:18,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-15 22:19:18,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 22:19:19,017 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d89f96e-4737-476a-8320-cd382dc64d51/bin/uautomizer/witness.graphml [2019-11-15 22:19:19,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:19:19,020 INFO L168 Benchmark]: Toolchain (without parser) took 7799.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 944.8 MB in the beginning and 882.0 MB in the end (delta: 62.8 MB). Peak memory consumption was 280.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:19:19,020 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:19:19,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:19:19,021 INFO L168 Benchmark]: Boogie Preprocessor took 67.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:19:19,022 INFO L168 Benchmark]: RCFGBuilder took 809.49 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:19:19,022 INFO L168 Benchmark]: TraceAbstraction took 6204.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 884.5 MB in the end (delta: 196.7 MB). Peak memory consumption was 259.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:19:19,023 INFO L168 Benchmark]: Witness Printer took 93.74 ms. Allocated memory is still 1.2 GB. Free memory was 884.5 MB in the beginning and 882.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:19:19,026 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 610.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 809.49 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6204.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 884.5 MB in the end (delta: 196.7 MB). Peak memory consumption was 259.0 MB. Max. memory is 11.5 GB. * Witness Printer took 93.74 ms. Allocated memory is still 1.2 GB. Free memory was 884.5 MB in the beginning and 882.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 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: 6.1s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 258 SDtfs, 597 SDslu, 400 SDs, 0 SdLazy, 974 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.9s 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 76 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s 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...