./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 10bdb405bd6bca2bddb8b686c44dad291e109402 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:05:00,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:05:00,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:05:00,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:05:00,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:05:00,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:05:00,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:05:00,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:05:00,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:05:00,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:05:00,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:05:00,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:05:00,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:05:00,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:05:00,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:05:00,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:05:00,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:05:00,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:05:00,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:05:00,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:05:00,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:05:00,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:05:00,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:05:00,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:05:00,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:05:00,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:05:00,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:05:00,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:05:00,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:05:00,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:05:00,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:05:00,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:05:00,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:05:00,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:05:00,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:05:00,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:05:00,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:05:00,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:05:00,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:05:00,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:05:00,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:05:00,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:05:00,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:05:00,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:05:00,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:05:00,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:05:00,810 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:05:00,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:05:00,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:05:00,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:05:00,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:05:00,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:05:00,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:05:00,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:05:00,812 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:05:00,812 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:05:00,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:05:00,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:05:00,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:05:00,813 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:05:00,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:05:00,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:05:00,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:05:00,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:05:00,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:05:00,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:05:00,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:05:00,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:05:00,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:05:00,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:05:00,816 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 10bdb405bd6bca2bddb8b686c44dad291e109402 [2019-11-28 20:05:01,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:05:01,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:05:01,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:05:01,154 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:05:01,155 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:05:01,156 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-11-28 20:05:01,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd2dc81a/9dd7e60122d94c619f5d4fd3cea0b04e/FLAG8bc3c5611 [2019-11-28 20:05:01,813 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:05:01,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-11-28 20:05:01,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd2dc81a/9dd7e60122d94c619f5d4fd3cea0b04e/FLAG8bc3c5611 [2019-11-28 20:05:02,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd2dc81a/9dd7e60122d94c619f5d4fd3cea0b04e [2019-11-28 20:05:02,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:05:02,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:05:02,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:05:02,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:05:02,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:05:02,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d50e01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02, skipping insertion in model container [2019-11-28 20:05:02,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:05:02,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:05:02,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:05:02,575 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:05:02,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:05:02,708 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:05:02,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02 WrapperNode [2019-11-28 20:05:02,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:05:02,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:05:02,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:05:02,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:05:02,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... [2019-11-28 20:05:02,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:05:02,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:05:02,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:05:02,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:05:02,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:05:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:05:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:05:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:05:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:05:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:05:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:05:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:05:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2019-11-28 20:05:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:05:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:05:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:05:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:05:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:05:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:05:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:05:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:05:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:05:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:05:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:05:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:05:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:05:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:05:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:05:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:05:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:05:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:05:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:05:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:05:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:05:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:05:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:05:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:05:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:05:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:05:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:05:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:05:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:05:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:05:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:05:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:05:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:05:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:05:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:05:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:05:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:05:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:05:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:05:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:05:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:05:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:05:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:05:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:05:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:05:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:05:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:05:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:05:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:05:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:05:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:05:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:05:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:05:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:05:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:05:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:05:03,331 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:05:03,332 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 20:05:03,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:05:03 BoogieIcfgContainer [2019-11-28 20:05:03,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:05:03,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:05:03,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:05:03,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:05:03,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:05:02" (1/3) ... [2019-11-28 20:05:03,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a61116c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:05:03, skipping insertion in model container [2019-11-28 20:05:03,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:05:02" (2/3) ... [2019-11-28 20:05:03,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a61116c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:05:03, skipping insertion in model container [2019-11-28 20:05:03,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:05:03" (3/3) ... [2019-11-28 20:05:03,341 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2019-11-28 20:05:03,351 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:05:03,359 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 20:05:03,373 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 20:05:03,394 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:05:03,394 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:05:03,395 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:05:03,395 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:05:03,396 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:05:03,396 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:05:03,396 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:05:03,396 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:05:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 20:05:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:05:03,423 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:03,424 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:03,424 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:03,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2019-11-28 20:05:03,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:03,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139025122] [2019-11-28 20:05:03,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:03,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139025122] [2019-11-28 20:05:03,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:05:03,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 20:05:03,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514846771] [2019-11-28 20:05:03,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 20:05:03,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:03,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 20:05:03,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:05:03,806 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 9 states. [2019-11-28 20:05:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:04,149 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-11-28 20:05:04,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 20:05:04,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-28 20:05:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:04,160 INFO L225 Difference]: With dead ends: 32 [2019-11-28 20:05:04,160 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 20:05:04,163 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2019-11-28 20:05:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 20:05:04,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-28 20:05:04,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 20:05:04,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-11-28 20:05:04,203 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2019-11-28 20:05:04,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:04,203 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-11-28 20:05:04,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 20:05:04,204 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-11-28 20:05:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:05:04,205 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:04,205 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:04,205 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:04,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2019-11-28 20:05:04,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:04,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159335685] [2019-11-28 20:05:04,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:04,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159335685] [2019-11-28 20:05:04,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:05:04,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:05:04,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134930950] [2019-11-28 20:05:04,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 20:05:04,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:04,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 20:05:04,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:05:04,337 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 8 states. [2019-11-28 20:05:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:04,584 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-11-28 20:05:04,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:05:04,584 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-28 20:05:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:04,588 INFO L225 Difference]: With dead ends: 29 [2019-11-28 20:05:04,588 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 20:05:04,589 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:05:04,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 20:05:04,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-11-28 20:05:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 20:05:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-11-28 20:05:04,599 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2019-11-28 20:05:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:04,599 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-11-28 20:05:04,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 20:05:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-11-28 20:05:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:05:04,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:04,601 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:04,602 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:04,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2019-11-28 20:05:04,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:04,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327829936] [2019-11-28 20:05:04,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:04,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327829936] [2019-11-28 20:05:04,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:05:04,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:05:04,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544864128] [2019-11-28 20:05:04,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:05:04,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:04,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:05:04,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:05:04,804 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 7 states. [2019-11-28 20:05:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:05,049 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-11-28 20:05:05,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-28 20:05:05,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-28 20:05:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:05,053 INFO L225 Difference]: With dead ends: 39 [2019-11-28 20:05:05,053 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 20:05:05,055 INFO L630 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 [2019-11-28 20:05:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 20:05:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2019-11-28 20:05:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 20:05:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-28 20:05:05,071 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2019-11-28 20:05:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:05,072 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-28 20:05:05,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:05:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-11-28 20:05:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:05:05,074 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:05,074 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:05,074 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:05,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:05,075 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2019-11-28 20:05:05,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:05,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488172604] [2019-11-28 20:05:05,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:05,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488172604] [2019-11-28 20:05:05,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:05:05,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 20:05:05,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113123743] [2019-11-28 20:05:05,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 20:05:05,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:05,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 20:05:05,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:05:05,238 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2019-11-28 20:05:05,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:05,488 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-11-28 20:05:05,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 20:05:05,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-28 20:05:05,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:05,491 INFO L225 Difference]: With dead ends: 33 [2019-11-28 20:05:05,492 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 20:05:05,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2019-11-28 20:05:05,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 20:05:05,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-11-28 20:05:05,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 20:05:05,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-11-28 20:05:05,500 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2019-11-28 20:05:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:05,501 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-11-28 20:05:05,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 20:05:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-11-28 20:05:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:05:05,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:05,502 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:05,503 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:05,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:05,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2019-11-28 20:05:05,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:05,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079582420] [2019-11-28 20:05:05,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:05,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079582420] [2019-11-28 20:05:05,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:05:05,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:05:05,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884777841] [2019-11-28 20:05:05,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:05:05,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:05,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:05:05,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:05:05,652 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2019-11-28 20:05:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:05,844 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-11-28 20:05:05,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:05:05,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-28 20:05:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:05,846 INFO L225 Difference]: With dead ends: 41 [2019-11-28 20:05:05,846 INFO L226 Difference]: Without dead ends: 41 [2019-11-28 20:05:05,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:05:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-28 20:05:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-11-28 20:05:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-28 20:05:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-11-28 20:05:05,853 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2019-11-28 20:05:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:05,853 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-11-28 20:05:05,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:05:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-11-28 20:05:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:05:05,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:05,855 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:05,855 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2019-11-28 20:05:05,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:05,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4094132] [2019-11-28 20:05:05,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:06,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4094132] [2019-11-28 20:05:06,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796626433] [2019-11-28 20:05:06,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:05:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:06,277 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-28 20:05:06,283 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:05:06,353 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:05:06,354 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:05:06,362 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:05:06,363 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:05:06,363 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 20:05:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:06,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:05:06,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2019-11-28 20:05:06,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779289506] [2019-11-28 20:05:06,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-28 20:05:06,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-28 20:05:06,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-11-28 20:05:06,653 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 22 states. [2019-11-28 20:05:07,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:07,420 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-28 20:05:07,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 20:05:07,420 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 19 [2019-11-28 20:05:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:07,421 INFO L225 Difference]: With dead ends: 44 [2019-11-28 20:05:07,421 INFO L226 Difference]: Without dead ends: 44 [2019-11-28 20:05:07,422 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-11-28 20:05:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-28 20:05:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-11-28 20:05:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-28 20:05:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-11-28 20:05:07,428 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2019-11-28 20:05:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:07,429 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-11-28 20:05:07,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-28 20:05:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-11-28 20:05:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 20:05:07,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:07,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:07,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:05:07,636 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:07,636 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2019-11-28 20:05:07,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:07,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333169880] [2019-11-28 20:05:07,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:07,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333169880] [2019-11-28 20:05:07,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:05:07,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:05:07,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59755126] [2019-11-28 20:05:07,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:05:07,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:07,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:05:07,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:05:07,760 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2019-11-28 20:05:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:07,860 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-11-28 20:05:07,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:05:07,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-28 20:05:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:07,862 INFO L225 Difference]: With dead ends: 42 [2019-11-28 20:05:07,862 INFO L226 Difference]: Without dead ends: 25 [2019-11-28 20:05:07,863 INFO L630 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 [2019-11-28 20:05:07,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-28 20:05:07,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-28 20:05:07,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 20:05:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-28 20:05:07,867 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2019-11-28 20:05:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:07,868 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-28 20:05:07,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:05:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-28 20:05:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 20:05:07,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:07,869 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:07,869 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:07,869 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2019-11-28 20:05:07,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:07,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139514599] [2019-11-28 20:05:07,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:08,269 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:08,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139514599] [2019-11-28 20:05:08,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359352539] [2019-11-28 20:05:08,271 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:05:08,367 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 20:05:08,367 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:05:08,368 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2019-11-28 20:05:08,371 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:05:08,380 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:05:08,381 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:05:08,388 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:05:08,389 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:05:08,389 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 20:05:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:08,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:05:08,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 23 [2019-11-28 20:05:08,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200268655] [2019-11-28 20:05:08,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-28 20:05:08,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:08,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-28 20:05:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2019-11-28 20:05:08,726 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 24 states. [2019-11-28 20:05:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:10,264 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-11-28 20:05:10,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-28 20:05:10,264 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2019-11-28 20:05:10,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:10,266 INFO L225 Difference]: With dead ends: 36 [2019-11-28 20:05:10,266 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 20:05:10,267 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=194, Invalid=1446, Unknown=0, NotChecked=0, Total=1640 [2019-11-28 20:05:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 20:05:10,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-11-28 20:05:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 20:05:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-28 20:05:10,271 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2019-11-28 20:05:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:10,271 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-28 20:05:10,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-28 20:05:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-28 20:05:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 20:05:10,272 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:05:10,272 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:05:10,475 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:05:10,476 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-11-28 20:05:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:05:10,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2019-11-28 20:05:10,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:05:10,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103803540] [2019-11-28 20:05:10,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:05:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:05:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:10,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103803540] [2019-11-28 20:05:10,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554417369] [2019-11-28 20:05:10,884 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:05:10,996 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-28 20:05:10,996 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:05:10,998 INFO L264 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 71 conjunts are in the unsatisfiable core [2019-11-28 20:05:11,000 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:05:11,006 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:05:11,006 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:05:11,009 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:05:11,010 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:05:11,010 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 20:05:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:05:11,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:05:11,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 29 [2019-11-28 20:05:11,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510353468] [2019-11-28 20:05:11,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-28 20:05:11,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:05:11,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-28 20:05:11,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2019-11-28 20:05:11,477 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 30 states. [2019-11-28 20:05:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:05:12,974 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-28 20:05:12,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-28 20:05:12,974 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 34 [2019-11-28 20:05:12,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:05:12,975 INFO L225 Difference]: With dead ends: 40 [2019-11-28 20:05:12,975 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:05:12,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2019-11-28 20:05:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:05:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:05:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:05:12,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:05:12,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-28 20:05:12,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:05:12,979 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:05:12,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-28 20:05:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:05:12,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:05:13,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:05:13,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:05:13 BoogieIcfgContainer [2019-11-28 20:05:13,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:05:13,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:05:13,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:05:13,190 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:05:13,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:05:03" (3/4) ... [2019-11-28 20:05:13,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:05:13,201 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 20:05:13,201 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-28 20:05:13,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-28 20:05:13,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-28 20:05:13,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-28 20:05:13,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 20:05:13,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2019-11-28 20:05:13,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-28 20:05:13,207 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-28 20:05:13,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 20:05:13,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:05:13,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:05:13,264 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:05:13,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:05:13,266 INFO L168 Benchmark]: Toolchain (without parser) took 11192.37 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.6 MB). Free memory was 961.7 MB in the beginning and 833.0 MB in the end (delta: 128.7 MB). Peak memory consumption was 443.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:05:13,266 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:05:13,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:05:13,267 INFO L168 Benchmark]: Boogie Preprocessor took 85.38 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:05:13,268 INFO L168 Benchmark]: RCFGBuilder took 537.11 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:05:13,268 INFO L168 Benchmark]: TraceAbstraction took 9854.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 1.1 GB in the beginning and 842.4 MB in the end (delta: 225.1 MB). Peak memory consumption was 407.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:05:13,269 INFO L168 Benchmark]: Witness Printer took 74.66 ms. Allocated memory is still 1.3 GB. Free memory was 842.4 MB in the beginning and 833.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:05:13,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 635.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.38 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 537.11 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9854.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 1.1 GB in the beginning and 842.4 MB in the end (delta: 225.1 MB). Peak memory consumption was 407.5 MB. Max. memory is 11.5 GB. * Witness Printer took 74.66 ms. Allocated memory is still 1.3 GB. Free memory was 842.4 MB in the beginning and 833.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 3 error locations. Result: SAFE, OverallTime: 9.7s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 417 SDslu, 357 SDs, 0 SdLazy, 1594 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=6, 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, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 4 QuantifiedInterpolants, 56942 SizeOfPredicates, 35 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/100 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...