./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/array01-alloca-2.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_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array01-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 0e0283c2b515067609d1d09b2bc4afe3d1f1d910 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:31:45,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:31:45,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:31:45,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:31:45,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:31:45,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:31:45,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:31:45,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:31:45,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:31:45,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:31:45,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:31:45,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:31:45,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:31:45,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:31:45,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:31:45,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:31:45,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:31:45,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:31:45,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:31:45,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:31:45,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:31:45,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:31:45,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:31:45,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:31:45,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:31:45,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:31:45,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:31:45,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:31:45,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:31:45,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:31:45,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:31:45,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:31:45,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:31:45,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:31:45,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:31:45,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:31:45,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:31:45,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:31:45,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:31:45,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:31:45,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:31:45,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 23:31:45,148 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:31:45,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:31:45,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:31:45,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:31:45,160 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:31:45,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:31:45,161 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:31:45,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:31:45,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:31:45,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:31:45,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:31:45,162 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:31:45,162 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:31:45,162 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 23:31:45,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:31:45,163 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:31:45,163 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:31:45,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:31:45,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:31:45,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:31:45,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:31:45,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:31:45,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:31:45,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:31:45,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:31:45,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:31:45,165 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_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 -> 0e0283c2b515067609d1d09b2bc4afe3d1f1d910 [2019-11-15 23:31:45,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:31:45,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:31:45,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:31:45,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:31:45,217 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:31:45,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2019-11-15 23:31:45,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/data/61c773510/2e7410b5f43f4d4b89490f5035d32e4e/FLAG204a1d20b [2019-11-15 23:31:45,713 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:31:45,714 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2019-11-15 23:31:45,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/data/61c773510/2e7410b5f43f4d4b89490f5035d32e4e/FLAG204a1d20b [2019-11-15 23:31:46,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/data/61c773510/2e7410b5f43f4d4b89490f5035d32e4e [2019-11-15 23:31:46,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:31:46,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:31:46,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:31:46,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:31:46,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:31:46,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c2ec6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46, skipping insertion in model container [2019-11-15 23:31:46,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,033 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:31:46,094 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:31:46,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:31:46,576 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:31:46,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:31:46,659 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:31:46,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46 WrapperNode [2019-11-15 23:31:46,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:31:46,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:31:46,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:31:46,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:31:46,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... [2019-11-15 23:31:46,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:31:46,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:31:46,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:31:46,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:31:46,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 23:31:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:31:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:31:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 23:31:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 23:31:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 23:31:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 23:31:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 23:31:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2019-11-15 23:31:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:31:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:31:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:31:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:31:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:31:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:31:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:31:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:31:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:31:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:31:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:31:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:31:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:31:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:31:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:31:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:31:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:31:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 23:31:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 23:31:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 23:31:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 23:31:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 23:31:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:31:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:31:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:31:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:31:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:31:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:31:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:31:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:31:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:31:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:31:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:31:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:31:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:31:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:31:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:31:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:31:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:31:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:31:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:31:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:31:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:31:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:31:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:31:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:31:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:31:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:31:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:31:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:31:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:31:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:31:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:31:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:31:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:31:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:31:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:31:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:31:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:31:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:31:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:31:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:31:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:31:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:31:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:31:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:31:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:31:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:31:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:31:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:31:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:31:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:31:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:31:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:31:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:31:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:31:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:31:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:31:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:31:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:31:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:31:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:31:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:31:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:31:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:31:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:31:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:31:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:31:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:31:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:31:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:31:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:31:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:31:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:31:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:31:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:31:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:31:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:31:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:31:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:31:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:31:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:31:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:31:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:31:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:31:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:31:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:31:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:31:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 23:31:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2019-11-15 23:31:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:31:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:31:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:31:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:31:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:31:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:31:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:31:47,412 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:31:47,412 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-15 23:31:47,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:31:47 BoogieIcfgContainer [2019-11-15 23:31:47,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:31:47,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:31:47,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:31:47,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:31:47,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:31:46" (1/3) ... [2019-11-15 23:31:47,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e25e761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:31:47, skipping insertion in model container [2019-11-15 23:31:47,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:31:46" (2/3) ... [2019-11-15 23:31:47,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e25e761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:31:47, skipping insertion in model container [2019-11-15 23:31:47,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:31:47" (3/3) ... [2019-11-15 23:31:47,427 INFO L109 eAbstractionObserver]: Analyzing ICFG array01-alloca-2.i [2019-11-15 23:31:47,434 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:31:47,441 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-11-15 23:31:47,449 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-11-15 23:31:47,466 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:31:47,466 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:31:47,466 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:31:47,467 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:31:47,467 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:31:47,467 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:31:47,467 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:31:47,467 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:31:47,481 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-15 23:31:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:31:47,492 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:47,493 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:31:47,495 INFO L410 AbstractCegarLoop]: === Iteration 1 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:47,500 INFO L82 PathProgramCache]: Analyzing trace with hash 828968537, now seen corresponding path program 1 times [2019-11-15 23:31:47,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:47,508 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576220115] [2019-11-15 23:31:47,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:47,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:47,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:47,684 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 23:31:47,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576220115] [2019-11-15 23:31:47,685 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:31:47,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:31:47,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751348434] [2019-11-15 23:31:47,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:31:47,690 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:47,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:31:47,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:31:47,705 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-11-15 23:31:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:47,861 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-15 23:31:47,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:31:47,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 23:31:47,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:47,872 INFO L225 Difference]: With dead ends: 38 [2019-11-15 23:31:47,872 INFO L226 Difference]: Without dead ends: 35 [2019-11-15 23:31:47,874 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 23:31:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-15 23:31:47,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-15 23:31:47,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-15 23:31:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-15 23:31:47,909 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 10 [2019-11-15 23:31:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:47,910 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-15 23:31:47,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:31:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-15 23:31:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:31:47,911 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:47,911 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:31:47,911 INFO L410 AbstractCegarLoop]: === Iteration 2 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:47,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:47,912 INFO L82 PathProgramCache]: Analyzing trace with hash 828968538, now seen corresponding path program 1 times [2019-11-15 23:31:47,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:47,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394187266] [2019-11-15 23:31:47,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:47,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:47,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,025 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 23:31:48,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394187266] [2019-11-15 23:31:48,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:31:48,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:31:48,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130124929] [2019-11-15 23:31:48,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:31:48,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:48,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:31:48,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:31:48,029 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 6 states. [2019-11-15 23:31:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:48,230 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2019-11-15 23:31:48,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:31:48,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-15 23:31:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:48,232 INFO L225 Difference]: With dead ends: 39 [2019-11-15 23:31:48,233 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 23:31:48,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:31:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 23:31:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-11-15 23:31:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-15 23:31:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2019-11-15 23:31:48,239 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 10 [2019-11-15 23:31:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:48,239 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2019-11-15 23:31:48,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:31:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2019-11-15 23:31:48,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:31:48,240 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:48,240 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:31:48,240 INFO L410 AbstractCegarLoop]: === Iteration 3 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:48,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:48,243 INFO L82 PathProgramCache]: Analyzing trace with hash 521590813, now seen corresponding path program 1 times [2019-11-15 23:31:48,243 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:48,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445858379] [2019-11-15 23:31:48,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:48,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:48,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,354 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 23:31:48,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445858379] [2019-11-15 23:31:48,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969189061] [2019-11-15 23:31:48,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 23:31:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:31:48,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:31:48,531 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 23:31:48,531 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:31:48,531 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-15 23:31:48,532 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712582750] [2019-11-15 23:31:48,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:31:48,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:48,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:31:48,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:31:48,533 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 5 states. [2019-11-15 23:31:48,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:48,579 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2019-11-15 23:31:48,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:31:48,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-15 23:31:48,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:48,584 INFO L225 Difference]: With dead ends: 47 [2019-11-15 23:31:48,584 INFO L226 Difference]: Without dead ends: 47 [2019-11-15 23:31:48,585 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 23:31:48,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-15 23:31:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-11-15 23:31:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-15 23:31:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-11-15 23:31:48,606 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 14 [2019-11-15 23:31:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:48,606 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-11-15 23:31:48,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:31:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-11-15 23:31:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:31:48,616 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:48,616 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:31:48,820 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:31:48,820 INFO L410 AbstractCegarLoop]: === Iteration 4 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:48,821 INFO L82 PathProgramCache]: Analyzing trace with hash -287755813, now seen corresponding path program 1 times [2019-11-15 23:31:48,821 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:48,821 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632680253] [2019-11-15 23:31:48,821 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:48,821 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:48,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:48,990 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 23:31:48,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632680253] [2019-11-15 23:31:48,991 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073000866] [2019-11-15 23:31:48,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 23:31:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:49,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 23:31:49,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:31:49,225 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 23:31:49,226 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:31:49,235 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:31:49,236 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:31:49,236 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-11-15 23:31:49,300 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 23:31:49,300 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:31:49,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-11-15 23:31:49,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117665537] [2019-11-15 23:31:49,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:31:49,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:49,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:31:49,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:31:49,303 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 8 states. [2019-11-15 23:31:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:49,506 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-15 23:31:49,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:31:49,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 23:31:49,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:49,508 INFO L225 Difference]: With dead ends: 44 [2019-11-15 23:31:49,508 INFO L226 Difference]: Without dead ends: 44 [2019-11-15 23:31:49,509 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 23:31:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-15 23:31:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2019-11-15 23:31:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-15 23:31:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-11-15 23:31:49,515 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 14 [2019-11-15 23:31:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:49,516 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-11-15 23:31:49,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:31:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-11-15 23:31:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:31:49,517 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:49,518 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 23:31:49,722 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:31:49,723 INFO L410 AbstractCegarLoop]: === Iteration 5 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:49,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:49,723 INFO L82 PathProgramCache]: Analyzing trace with hash -479904616, now seen corresponding path program 1 times [2019-11-15 23:31:49,723 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:49,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108884833] [2019-11-15 23:31:49,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:49,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:49,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:49,811 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 23:31:49,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108884833] [2019-11-15 23:31:49,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:31:49,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:31:49,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241860285] [2019-11-15 23:31:49,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:31:49,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:49,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:31:49,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:31:49,813 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2019-11-15 23:31:49,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:49,936 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-15 23:31:49,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:31:49,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-15 23:31:49,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:49,938 INFO L225 Difference]: With dead ends: 38 [2019-11-15 23:31:49,938 INFO L226 Difference]: Without dead ends: 38 [2019-11-15 23:31:49,938 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:31:49,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-15 23:31:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-11-15 23:31:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-15 23:31:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2019-11-15 23:31:49,943 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 17 [2019-11-15 23:31:49,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:49,944 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-11-15 23:31:49,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:31:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2019-11-15 23:31:49,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:31:49,945 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:49,945 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 23:31:49,945 INFO L410 AbstractCegarLoop]: === Iteration 6 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:49,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:49,945 INFO L82 PathProgramCache]: Analyzing trace with hash -479904615, now seen corresponding path program 1 times [2019-11-15 23:31:49,946 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:49,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911248680] [2019-11-15 23:31:49,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:49,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:49,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:50,068 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 23:31:50,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911248680] [2019-11-15 23:31:50,068 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:31:50,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:31:50,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839477649] [2019-11-15 23:31:50,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:31:50,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:50,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:31:50,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:31:50,070 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 7 states. [2019-11-15 23:31:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:50,360 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2019-11-15 23:31:50,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:31:50,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 23:31:50,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:50,362 INFO L225 Difference]: With dead ends: 49 [2019-11-15 23:31:50,363 INFO L226 Difference]: Without dead ends: 49 [2019-11-15 23:31:50,364 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:31:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-15 23:31:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2019-11-15 23:31:50,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 23:31:50,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-11-15 23:31:50,370 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 17 [2019-11-15 23:31:50,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:50,371 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-11-15 23:31:50,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:31:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-11-15 23:31:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 23:31:50,373 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:50,373 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 23:31:50,373 INFO L410 AbstractCegarLoop]: === Iteration 7 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:50,374 INFO L82 PathProgramCache]: Analyzing trace with hash -19725524, now seen corresponding path program 1 times [2019-11-15 23:31:50,374 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:50,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894092200] [2019-11-15 23:31:50,375 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:50,375 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:50,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:50,514 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 23:31:50,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894092200] [2019-11-15 23:31:50,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332857494] [2019-11-15 23:31:50,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 23:31:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:50,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:31:50,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:31:50,780 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 23:31:50,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:31:50,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2019-11-15 23:31:50,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791532749] [2019-11-15 23:31:50,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:31:50,783 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:50,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:31:50,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:31:50,784 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 6 states. [2019-11-15 23:31:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:50,906 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2019-11-15 23:31:50,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:31:50,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-15 23:31:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:50,908 INFO L225 Difference]: With dead ends: 65 [2019-11-15 23:31:50,909 INFO L226 Difference]: Without dead ends: 65 [2019-11-15 23:31:50,909 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-11-15 23:31:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-15 23:31:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2019-11-15 23:31:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 23:31:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2019-11-15 23:31:50,916 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 21 [2019-11-15 23:31:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:50,917 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2019-11-15 23:31:50,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:31:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2019-11-15 23:31:50,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 23:31:50,918 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:50,919 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 23:31:51,122 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:31:51,123 INFO L410 AbstractCegarLoop]: === Iteration 8 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:51,123 INFO L82 PathProgramCache]: Analyzing trace with hash -55167689, now seen corresponding path program 1 times [2019-11-15 23:31:51,124 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:51,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839091731] [2019-11-15 23:31:51,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:51,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:51,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:51,247 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 23:31:51,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839091731] [2019-11-15 23:31:51,248 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:31:51,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:31:51,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781788503] [2019-11-15 23:31:51,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:31:51,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:51,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:31:51,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:31:51,250 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 7 states. [2019-11-15 23:31:51,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:51,547 INFO L93 Difference]: Finished difference Result 96 states and 105 transitions. [2019-11-15 23:31:51,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:31:51,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-15 23:31:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:51,550 INFO L225 Difference]: With dead ends: 96 [2019-11-15 23:31:51,550 INFO L226 Difference]: Without dead ends: 90 [2019-11-15 23:31:51,551 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 23:31:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-15 23:31:51,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2019-11-15 23:31:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 23:31:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-11-15 23:31:51,558 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 21 [2019-11-15 23:31:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:51,559 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2019-11-15 23:31:51,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:31:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2019-11-15 23:31:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 23:31:51,560 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:51,560 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 23:31:51,561 INFO L410 AbstractCegarLoop]: === Iteration 9 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:51,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:51,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1299589202, now seen corresponding path program 1 times [2019-11-15 23:31:51,562 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:51,562 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939594556] [2019-11-15 23:31:51,562 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:51,562 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:51,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:51,765 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 23:31:51,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939594556] [2019-11-15 23:31:51,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227839967] [2019-11-15 23:31:51,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/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 23:31:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:51,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:31:51,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:31:52,057 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 23:31:52,058 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:31:52,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-15 23:31:52,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944597385] [2019-11-15 23:31:52,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-15 23:31:52,059 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:52,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-15 23:31:52,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:31:52,059 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 15 states. [2019-11-15 23:31:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:52,705 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2019-11-15 23:31:52,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 23:31:52,706 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 21 [2019-11-15 23:31:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:52,707 INFO L225 Difference]: With dead ends: 81 [2019-11-15 23:31:52,707 INFO L226 Difference]: Without dead ends: 81 [2019-11-15 23:31:52,708 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2019-11-15 23:31:52,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-11-15 23:31:52,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 54. [2019-11-15 23:31:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 23:31:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2019-11-15 23:31:52,715 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 21 [2019-11-15 23:31:52,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:52,716 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2019-11-15 23:31:52,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-15 23:31:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2019-11-15 23:31:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:31:52,717 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:31:52,717 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 23:31:52,918 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:31:52,919 INFO L410 AbstractCegarLoop]: === Iteration 10 === [test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:31:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:31:52,919 INFO L82 PathProgramCache]: Analyzing trace with hash -2014807478, now seen corresponding path program 1 times [2019-11-15 23:31:52,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:31:52,920 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846564340] [2019-11-15 23:31:52,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:52,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:31:52,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:31:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:31:53,052 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 23:31:53,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846564340] [2019-11-15 23:31:53,054 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:31:53,055 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:31:53,055 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019458278] [2019-11-15 23:31:53,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:31:53,056 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:31:53,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:31:53,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:31:53,057 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2019-11-15 23:31:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:31:53,200 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2019-11-15 23:31:53,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:31:53,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-15 23:31:53,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:31:53,201 INFO L225 Difference]: With dead ends: 73 [2019-11-15 23:31:53,201 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:31:53,201 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 23:31:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:31:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:31:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:31:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:31:53,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-11-15 23:31:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:31:53,202 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:31:53,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:31:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:31:53,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:31:53,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:31:53 BoogieIcfgContainer [2019-11-15 23:31:53,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:31:53,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:31:53,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:31:53,212 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:31:53,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:31:47" (3/4) ... [2019-11-15 23:31:53,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:31:53,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 23:31:53,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-15 23:31:53,226 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2019-11-15 23:31:53,226 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-15 23:31:53,226 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-15 23:31:53,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-15 23:31:53,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 23:31:53,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-15 23:31:53,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-11-15 23:31:53,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-15 23:31:53,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 23:31:53,293 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5c8f7f38-d2b8-4f7a-9c42-7ec1b9208d1a/bin/uautomizer/witness.graphml [2019-11-15 23:31:53,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:31:53,295 INFO L168 Benchmark]: Toolchain (without parser) took 7285.72 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 244.3 MB). Free memory was 939.4 MB in the beginning and 981.2 MB in the end (delta: -41.7 MB). Peak memory consumption was 202.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:31:53,296 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:31:53,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -208.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:31:53,297 INFO L168 Benchmark]: Boogie Preprocessor took 52.82 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:31:53,297 INFO L168 Benchmark]: RCFGBuilder took 700.20 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: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:31:53,298 INFO L168 Benchmark]: TraceAbstraction took 5796.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 78.1 MB). Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 98.8 MB). Peak memory consumption was 176.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:31:53,299 INFO L168 Benchmark]: Witness Printer took 81.69 ms. Allocated memory is still 1.3 GB. Free memory was 992.0 MB in the beginning and 981.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:31:53,301 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 649.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -208.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.82 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 700.20 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: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5796.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 78.1 MB). Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 98.8 MB). Peak memory consumption was 176.9 MB. Max. memory is 11.5 GB. * Witness Printer took 81.69 ms. Allocated memory is still 1.3 GB. Free memory was 992.0 MB in the beginning and 981.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 517]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 517]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds 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: 5.7s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 249 SDtfs, 574 SDslu, 378 SDs, 0 SdLazy, 924 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 77 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 77 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 19953 SizeOfPredicates, 12 NumberOfNonLiveVariables, 304 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...