./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/lockfree-3.2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab 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/memsafety/lockfree-3.2.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 9281afa68f10f88b0abb59461461cab9597c1d50 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/memsafety/lockfree-3.2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 9281afa68f10f88b0abb59461461cab9597c1d50 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:34:30,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:34:30,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:34:30,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:34:30,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:34:30,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:34:30,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:34:30,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:34:30,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:34:30,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:34:30,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:34:30,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:34:30,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:34:30,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:34:30,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:34:30,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:34:30,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:34:30,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:34:30,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:34:30,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:34:30,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:34:30,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:34:30,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:34:30,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:34:30,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:34:30,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:34:30,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:34:30,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:34:30,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:34:30,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:34:30,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:34:30,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:34:30,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:34:30,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:34:30,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:34:30,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:34:30,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:34:30,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:34:30,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:34:30,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:34:30,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:34:30,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:34:30,894 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:34:30,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:34:30,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:34:30,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:34:30,896 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:34:30,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:34:30,897 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:34:30,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:34:30,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:34:30,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:34:30,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:34:30,898 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:34:30,898 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:34:30,901 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:34:30,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:34:30,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:34:30,902 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:34:30,902 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:34:30,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:34:30,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:34:30,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:34:30,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:34:30,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:34:30,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:34:30,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:34:30,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:34:30,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:34:30,905 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 -> 9281afa68f10f88b0abb59461461cab9597c1d50 [2019-11-28 02:34:31,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:34:31,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:34:31,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:34:31,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:34:31,263 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:34:31,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 02:34:31,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f878dcf/24292462d650431695fed6cc5a8a7437/FLAG5381a9e3a [2019-11-28 02:34:31,828 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:34:31,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 02:34:31,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f878dcf/24292462d650431695fed6cc5a8a7437/FLAG5381a9e3a [2019-11-28 02:34:32,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f878dcf/24292462d650431695fed6cc5a8a7437 [2019-11-28 02:34:32,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:34:32,179 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:34:32,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:34:32,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:34:32,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:34:32,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b36a554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32, skipping insertion in model container [2019-11-28 02:34:32,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:34:32,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:34:32,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:34:32,764 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:34:32,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:34:32,873 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:34:32,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32 WrapperNode [2019-11-28 02:34:32,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:34:32,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:34:32,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:34:32,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:34:32,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (1/1) ... [2019-11-28 02:34:32,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:34:32,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:34:32,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:34:32,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:34:32,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (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 02:34:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:34:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:34:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:34:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:34:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:34:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:34:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:34:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-11-28 02:34:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-11-28 02:34:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:34:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:34:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:34:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:34:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:34:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:34:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:34:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:34:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:34:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:34:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:34:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:34:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:34:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:34:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:34:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:34:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:34:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:34:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:34:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:34:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:34:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:34:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:34:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:34:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:34:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:34:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:34:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:34:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:34:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:34:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:34:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:34:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:34:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:34:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:34:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:34:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:34:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:34:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:34:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:34:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:34:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:34:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:34:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:34:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:34:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:34:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:34:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:34:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:34:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:34:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:34:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:34:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:34:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:34:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:34:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:34:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:34:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:34:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:34:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:34:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:34:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:34:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:34:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:34:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:34:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:34:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:34:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:34:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:34:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:34:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:34:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:34:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:34:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:34:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:34:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:34:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:34:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:34:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:34:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:34:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:34:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:34:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:34:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:34:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:34:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:34:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:34:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:34:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:34:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:34:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:34:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:34:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:34:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:34:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:34:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:34:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:34:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:34:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:34:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:34:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:34:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:34:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:34:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:34:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:34:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:34:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:34:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:34:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:34:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:34:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-11-28 02:34:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:34:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:34:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:34:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-11-28 02:34:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:34:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:34:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:34:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:34:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:34:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:34:33,719 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:34:33,720 INFO L297 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 02:34:33,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:33 BoogieIcfgContainer [2019-11-28 02:34:33,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:34:33,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:34:33,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:34:33,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:34:33,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:34:32" (1/3) ... [2019-11-28 02:34:33,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cab3491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:34:33, skipping insertion in model container [2019-11-28 02:34:33,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:32" (2/3) ... [2019-11-28 02:34:33,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cab3491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:34:33, skipping insertion in model container [2019-11-28 02:34:33,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:33" (3/3) ... [2019-11-28 02:34:33,735 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-11-28 02:34:33,745 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:34:33,757 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-28 02:34:33,778 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-28 02:34:33,794 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:34:33,794 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:34:33,794 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:34:33,794 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:34:33,795 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:34:33,795 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:34:33,795 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:34:33,795 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:34:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-11-28 02:34:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:34:33,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:33,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:33,821 INFO L410 AbstractCegarLoop]: === Iteration 1 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:33,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:33,827 INFO L82 PathProgramCache]: Analyzing trace with hash 406886108, now seen corresponding path program 1 times [2019-11-28 02:34:33,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:33,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221341802] [2019-11-28 02:34:33,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:34,113 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 02:34:34,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221341802] [2019-11-28 02:34:34,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:34,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:34,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738792450] [2019-11-28 02:34:34,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:34:34,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:34,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:34:34,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:34,134 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-11-28 02:34:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:34,446 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2019-11-28 02:34:34,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:34:34,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 02:34:34,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:34,460 INFO L225 Difference]: With dead ends: 92 [2019-11-28 02:34:34,460 INFO L226 Difference]: Without dead ends: 89 [2019-11-28 02:34:34,462 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-28 02:34:34,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2019-11-28 02:34:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-28 02:34:34,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2019-11-28 02:34:34,506 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2019-11-28 02:34:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:34,507 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2019-11-28 02:34:34,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:34:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2019-11-28 02:34:34,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:34:34,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:34,508 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:34,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:34,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:34,509 INFO L82 PathProgramCache]: Analyzing trace with hash 155309773, now seen corresponding path program 1 times [2019-11-28 02:34:34,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:34,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843369914] [2019-11-28 02:34:34,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:34,667 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 02:34:34,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843369914] [2019-11-28 02:34:34,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:34,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:34:34,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839093019] [2019-11-28 02:34:34,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:34,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:34,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:34,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:34,675 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2019-11-28 02:34:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:35,042 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2019-11-28 02:34:35,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:35,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 02:34:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:35,047 INFO L225 Difference]: With dead ends: 91 [2019-11-28 02:34:35,048 INFO L226 Difference]: Without dead ends: 91 [2019-11-28 02:34:35,048 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-28 02:34:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2019-11-28 02:34:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-28 02:34:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2019-11-28 02:34:35,072 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2019-11-28 02:34:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:35,072 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2019-11-28 02:34:35,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2019-11-28 02:34:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:34:35,074 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:35,075 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:35,076 INFO L410 AbstractCegarLoop]: === Iteration 3 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:35,077 INFO L82 PathProgramCache]: Analyzing trace with hash 155369355, now seen corresponding path program 1 times [2019-11-28 02:34:35,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:35,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951536487] [2019-11-28 02:34:35,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:35,259 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 02:34:35,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951536487] [2019-11-28 02:34:35,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:35,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:35,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480253354] [2019-11-28 02:34:35,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:35,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:35,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:35,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:35,267 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2019-11-28 02:34:35,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:35,564 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2019-11-28 02:34:35,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:35,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 02:34:35,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:35,567 INFO L225 Difference]: With dead ends: 135 [2019-11-28 02:34:35,567 INFO L226 Difference]: Without dead ends: 135 [2019-11-28 02:34:35,568 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-28 02:34:35,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2019-11-28 02:34:35,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 02:34:35,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2019-11-28 02:34:35,580 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2019-11-28 02:34:35,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:35,581 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-11-28 02:34:35,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2019-11-28 02:34:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:34:35,582 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:35,582 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:35,582 INFO L410 AbstractCegarLoop]: === Iteration 4 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:35,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:35,583 INFO L82 PathProgramCache]: Analyzing trace with hash 521481310, now seen corresponding path program 1 times [2019-11-28 02:34:35,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:35,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279402799] [2019-11-28 02:34:35,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:35,682 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 02:34:35,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279402799] [2019-11-28 02:34:35,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:35,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:35,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155080582] [2019-11-28 02:34:35,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:35,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:35,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:35,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:35,684 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2019-11-28 02:34:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:35,915 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2019-11-28 02:34:35,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:34:35,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 02:34:35,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:35,920 INFO L225 Difference]: With dead ends: 149 [2019-11-28 02:34:35,920 INFO L226 Difference]: Without dead ends: 144 [2019-11-28 02:34:35,921 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:35,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-28 02:34:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2019-11-28 02:34:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-28 02:34:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2019-11-28 02:34:35,937 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2019-11-28 02:34:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:35,937 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2019-11-28 02:34:35,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2019-11-28 02:34:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 02:34:35,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:35,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:35,939 INFO L410 AbstractCegarLoop]: === Iteration 5 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:35,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:35,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811089, now seen corresponding path program 1 times [2019-11-28 02:34:35,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:35,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424395495] [2019-11-28 02:34:35,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:36,028 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 02:34:36,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424395495] [2019-11-28 02:34:36,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:36,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:36,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092781071] [2019-11-28 02:34:36,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:36,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:36,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:36,032 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2019-11-28 02:34:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:36,407 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2019-11-28 02:34:36,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:36,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 02:34:36,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:36,412 INFO L225 Difference]: With dead ends: 220 [2019-11-28 02:34:36,412 INFO L226 Difference]: Without dead ends: 220 [2019-11-28 02:34:36,412 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-28 02:34:36,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2019-11-28 02:34:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-28 02:34:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2019-11-28 02:34:36,430 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2019-11-28 02:34:36,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:36,431 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2019-11-28 02:34:36,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2019-11-28 02:34:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 02:34:36,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:36,432 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:36,432 INFO L410 AbstractCegarLoop]: === Iteration 6 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:36,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:36,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811090, now seen corresponding path program 1 times [2019-11-28 02:34:36,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:36,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231319976] [2019-11-28 02:34:36,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:36,518 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 02:34:36,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231319976] [2019-11-28 02:34:36,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:36,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:36,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676579419] [2019-11-28 02:34:36,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:36,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:36,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:36,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:36,520 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2019-11-28 02:34:36,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:36,876 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2019-11-28 02:34:36,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:36,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 02:34:36,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:36,879 INFO L225 Difference]: With dead ends: 271 [2019-11-28 02:34:36,879 INFO L226 Difference]: Without dead ends: 271 [2019-11-28 02:34:36,880 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-11-28 02:34:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2019-11-28 02:34:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-11-28 02:34:36,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2019-11-28 02:34:36,903 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2019-11-28 02:34:36,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:36,903 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2019-11-28 02:34:36,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2019-11-28 02:34:36,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:34:36,904 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:36,905 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:36,905 INFO L410 AbstractCegarLoop]: === Iteration 7 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:36,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:36,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1553554911, now seen corresponding path program 1 times [2019-11-28 02:34:36,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:36,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675909290] [2019-11-28 02:34:36,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:37,047 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 02:34:37,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675909290] [2019-11-28 02:34:37,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:37,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:34:37,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630686116] [2019-11-28 02:34:37,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:34:37,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:37,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:34:37,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:34:37,054 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2019-11-28 02:34:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:37,334 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2019-11-28 02:34:37,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:34:37,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 02:34:37,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:37,340 INFO L225 Difference]: With dead ends: 473 [2019-11-28 02:34:37,341 INFO L226 Difference]: Without dead ends: 473 [2019-11-28 02:34:37,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:34:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-11-28 02:34:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2019-11-28 02:34:37,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-11-28 02:34:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2019-11-28 02:34:37,381 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2019-11-28 02:34:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:37,382 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2019-11-28 02:34:37,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:34:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2019-11-28 02:34:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 02:34:37,384 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:37,385 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:37,385 INFO L410 AbstractCegarLoop]: === Iteration 8 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:37,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:37,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1849836300, now seen corresponding path program 1 times [2019-11-28 02:34:37,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:37,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673031469] [2019-11-28 02:34:37,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:37,521 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 02:34:37,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673031469] [2019-11-28 02:34:37,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:37,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:34:37,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962694590] [2019-11-28 02:34:37,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:34:37,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:37,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:34:37,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:34:37,523 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 6 states. [2019-11-28 02:34:37,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:37,787 INFO L93 Difference]: Finished difference Result 825 states and 1195 transitions. [2019-11-28 02:34:37,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:34:37,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 02:34:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:37,794 INFO L225 Difference]: With dead ends: 825 [2019-11-28 02:34:37,795 INFO L226 Difference]: Without dead ends: 825 [2019-11-28 02:34:37,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:34:37,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-11-28 02:34:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 787. [2019-11-28 02:34:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-11-28 02:34:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1155 transitions. [2019-11-28 02:34:37,828 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1155 transitions. Word has length 15 [2019-11-28 02:34:37,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:37,829 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1155 transitions. [2019-11-28 02:34:37,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:34:37,829 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1155 transitions. [2019-11-28 02:34:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 02:34:37,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:37,830 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:37,830 INFO L410 AbstractCegarLoop]: === Iteration 9 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:37,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1460861468, now seen corresponding path program 1 times [2019-11-28 02:34:37,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:37,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520142263] [2019-11-28 02:34:37,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:38,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520142263] [2019-11-28 02:34:38,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010699674] [2019-11-28 02:34:38,011 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 02:34:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:38,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 02:34:38,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:38,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:34:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:38,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:34:38,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-11-28 02:34:38,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770303766] [2019-11-28 02:34:38,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 02:34:38,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:38,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 02:34:38,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-28 02:34:38,279 INFO L87 Difference]: Start difference. First operand 787 states and 1155 transitions. Second operand 12 states. [2019-11-28 02:34:38,692 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-11-28 02:34:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:39,813 INFO L93 Difference]: Finished difference Result 2623 states and 3920 transitions. [2019-11-28 02:34:39,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-28 02:34:39,814 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-11-28 02:34:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:39,834 INFO L225 Difference]: With dead ends: 2623 [2019-11-28 02:34:39,834 INFO L226 Difference]: Without dead ends: 2623 [2019-11-28 02:34:39,835 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2019-11-28 02:34:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2019-11-28 02:34:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2455. [2019-11-28 02:34:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2455 states. [2019-11-28 02:34:39,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3589 transitions. [2019-11-28 02:34:39,978 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3589 transitions. Word has length 22 [2019-11-28 02:34:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:39,979 INFO L462 AbstractCegarLoop]: Abstraction has 2455 states and 3589 transitions. [2019-11-28 02:34:39,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 02:34:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3589 transitions. [2019-11-28 02:34:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 02:34:39,985 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:39,986 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:40,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:34:40,190 INFO L410 AbstractCegarLoop]: === Iteration 10 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:40,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1813037474, now seen corresponding path program 1 times [2019-11-28 02:34:40,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:40,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467063284] [2019-11-28 02:34:40,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:34:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:34:40,262 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:34:40,262 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:34:40,315 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 02:34:40,345 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-11-28 02:34:40,348 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-11-28 02:34:40,349 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-11-28 02:34:40,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:34:40 BoogieIcfgContainer [2019-11-28 02:34:40,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:34:40,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:34:40,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:34:40,369 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:34:40,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:33" (3/4) ... [2019-11-28 02:34:40,373 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:34:40,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:34:40,374 INFO L168 Benchmark]: Toolchain (without parser) took 8195.85 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.5 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -82.8 MB). Peak memory consumption was 230.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:40,375 INFO L168 Benchmark]: CDTParser took 0.60 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 02:34:40,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:40,377 INFO L168 Benchmark]: Boogie Preprocessor took 66.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:34:40,377 INFO L168 Benchmark]: RCFGBuilder took 780.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:40,378 INFO L168 Benchmark]: TraceAbstraction took 6643.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.2 MB). Peak memory consumption was 186.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:40,379 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:40,383 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 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 695.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 780.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6643.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.2 MB). Peak memory consumption was 186.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.14 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 581]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 581. Possible FailurePath: [L517] struct cell *S; [L518] int pc1 = 1; [L519] int pc4 = 1; [L520] static struct cell *t1 = ((void *)0); [L521] static struct cell *x1 = ((void *)0); [L550] struct cell* garbage; [L551] static struct cell *t4 = ((void *)0); [L552] static struct cell *x4 = ((void *)0); [L555] static int res4; VAL [\old(garbage)=21, \old(garbage)=18, \old(pc1)=13, \old(pc4)=22, \old(res4)=14, \old(S)=10, \old(S)=15, \old(t1)=20, \old(t1)=27, \old(t4)=11, \old(t4)=16, \old(x1)=23, \old(x1)=19, \old(x4)=26, \old(x4)=25, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L583] S || 1 != pc4 || __VERIFIER_nondet_int() [L583] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=1, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=1, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L583] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L584] COND TRUE __VERIFIER_nondet_int() [L585] CALL push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L524] pc1++ [L525] case 1: [L526] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L527] x1->data = 0 VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L528] x1->next = ((void *)0) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L585] RET push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L583] S || 1 != pc4 || __VERIFIER_nondet_int() [L583] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=0, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L583] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L589] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L594] S = ((void *)0) [L595] t1 = ((void *)0) [L596] x1 = ((void *)0) [L597] t4 = ((void *)0) [L598] x4 = ((void *)0) [L599] return !!garbage; VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 89 locations, 20 error locations. Result: UNSAFE, OverallTime: 6.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 1018 SDslu, 960 SDs, 0 SdLazy, 1533 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2455occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 12263 SizeOfPredicates, 8 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2/6 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:34:42,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:34:42,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:34:42,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:34:42,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:34:42,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:34:42,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:34:42,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:34:42,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:34:42,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:34:42,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:34:42,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:34:42,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:34:42,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:34:42,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:34:42,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:34:42,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:34:42,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:34:42,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:34:42,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:34:42,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:34:42,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:34:42,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:34:42,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:34:42,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:34:42,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:34:42,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:34:42,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:34:42,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:34:42,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:34:42,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:34:42,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:34:42,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:34:42,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:34:42,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:34:42,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:34:42,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:34:42,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:34:42,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:34:42,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:34:42,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:34:42,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 02:34:42,339 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:34:42,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:34:42,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:34:42,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:34:42,341 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:34:42,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:34:42,342 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:34:42,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:34:42,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:34:42,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:34:42,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:34:42,343 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:34:42,344 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:34:42,344 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:34:42,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:34:42,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:34:42,345 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:34:42,345 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:34:42,345 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:34:42,346 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:34:42,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:34:42,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:34:42,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:34:42,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:34:42,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:34:42,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:34:42,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:34:42,348 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:34:42,348 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:34:42,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:34:42,349 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 9281afa68f10f88b0abb59461461cab9597c1d50 [2019-11-28 02:34:42,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:34:42,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:34:42,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:34:42,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:34:42,652 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:34:42,653 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 02:34:42,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c9de313/66c442aa19d54e07a1f3cc42ce88529f/FLAG5598a0d5c [2019-11-28 02:34:43,181 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:34:43,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 02:34:43,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c9de313/66c442aa19d54e07a1f3cc42ce88529f/FLAG5598a0d5c [2019-11-28 02:34:43,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c9de313/66c442aa19d54e07a1f3cc42ce88529f [2019-11-28 02:34:43,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:34:43,537 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:34:43,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:34:43,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:34:43,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:34:43,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:43" (1/1) ... [2019-11-28 02:34:43,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0fd5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:43, skipping insertion in model container [2019-11-28 02:34:43,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:43" (1/1) ... [2019-11-28 02:34:43,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:34:43,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:34:43,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:34:44,014 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:34:44,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:34:44,161 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:34:44,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44 WrapperNode [2019-11-28 02:34:44,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:34:44,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:34:44,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:34:44,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:34:44,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (1/1) ... [2019-11-28 02:34:44,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:34:44,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:34:44,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:34:44,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:34:44,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (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 02:34:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:34:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:34:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:34:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:34:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:34:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:34:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:34:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:34:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-11-28 02:34:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-11-28 02:34:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:34:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:34:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:34:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:34:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:34:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:34:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:34:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:34:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:34:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:34:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:34:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:34:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:34:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:34:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:34:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:34:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:34:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:34:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:34:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:34:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:34:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:34:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:34:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:34:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:34:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:34:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:34:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:34:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:34:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:34:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:34:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:34:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:34:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:34:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:34:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:34:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:34:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:34:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:34:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:34:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:34:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:34:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:34:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:34:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:34:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:34:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:34:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:34:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:34:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:34:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:34:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:34:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:34:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:34:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:34:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:34:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:34:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:34:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:34:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:34:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:34:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:34:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:34:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:34:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:34:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:34:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:34:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:34:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:34:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:34:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:34:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:34:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:34:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:34:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:34:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:34:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:34:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:34:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:34:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:34:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:34:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:34:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:34:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:34:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:34:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:34:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:34:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:34:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:34:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:34:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:34:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:34:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:34:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:34:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:34:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:34:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:34:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:34:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:34:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:34:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:34:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:34:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:34:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:34:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:34:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:34:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:34:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:34:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:34:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:34:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-11-28 02:34:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:34:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:34:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:34:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-11-28 02:34:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:34:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:34:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:34:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:34:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:34:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:34:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:34:45,288 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:34:45,289 INFO L297 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 02:34:45,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:45 BoogieIcfgContainer [2019-11-28 02:34:45,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:34:45,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:34:45,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:34:45,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:34:45,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:34:43" (1/3) ... [2019-11-28 02:34:45,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b354cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:34:45, skipping insertion in model container [2019-11-28 02:34:45,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:44" (2/3) ... [2019-11-28 02:34:45,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b354cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:34:45, skipping insertion in model container [2019-11-28 02:34:45,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:45" (3/3) ... [2019-11-28 02:34:45,300 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-11-28 02:34:45,310 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:34:45,318 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-28 02:34:45,331 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-28 02:34:45,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:34:45,353 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:34:45,353 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:34:45,353 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:34:45,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:34:45,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:34:45,354 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:34:45,354 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:34:45,372 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-11-28 02:34:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:34:45,383 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:45,385 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:45,385 INFO L410 AbstractCegarLoop]: === Iteration 1 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:45,392 INFO L82 PathProgramCache]: Analyzing trace with hash -526373776, now seen corresponding path program 1 times [2019-11-28 02:34:45,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:45,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586161239] [2019-11-28 02:34:45,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:45,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:34:45,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:45,822 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 02:34:45,822 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:34:45,872 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 02:34:45,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586161239] [2019-11-28 02:34:45,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:45,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 02:34:45,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274520141] [2019-11-28 02:34:45,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:34:45,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:34:45,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:34:45,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:45,899 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-11-28 02:34:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:45,997 INFO L93 Difference]: Finished difference Result 123 states and 156 transitions. [2019-11-28 02:34:45,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:34:46,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 02:34:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:46,015 INFO L225 Difference]: With dead ends: 123 [2019-11-28 02:34:46,015 INFO L226 Difference]: Without dead ends: 120 [2019-11-28 02:34:46,017 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:46,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-28 02:34:46,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2019-11-28 02:34:46,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-28 02:34:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2019-11-28 02:34:46,081 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2019-11-28 02:34:46,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:46,082 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2019-11-28 02:34:46,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:34:46,082 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2019-11-28 02:34:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:34:46,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:46,085 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:46,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:34:46,301 INFO L410 AbstractCegarLoop]: === Iteration 2 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:46,302 INFO L82 PathProgramCache]: Analyzing trace with hash 862280744, now seen corresponding path program 1 times [2019-11-28 02:34:46,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:46,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344897043] [2019-11-28 02:34:46,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:46,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:34:46,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:46,483 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 02:34:46,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:34:46,490 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 02:34:46,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344897043] [2019-11-28 02:34:46,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:46,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:34:46,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587272747] [2019-11-28 02:34:46,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:34:46,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:34:46,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:34:46,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:46,493 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2019-11-28 02:34:46,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:46,665 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2019-11-28 02:34:46,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:34:46,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 02:34:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:46,669 INFO L225 Difference]: With dead ends: 128 [2019-11-28 02:34:46,669 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 02:34:46,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 02:34:46,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2019-11-28 02:34:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-28 02:34:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-11-28 02:34:46,691 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2019-11-28 02:34:46,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:46,691 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-11-28 02:34:46,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:34:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-11-28 02:34:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:34:46,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:46,693 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:46,894 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:34:46,895 INFO L410 AbstractCegarLoop]: === Iteration 3 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:46,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:46,896 INFO L82 PathProgramCache]: Analyzing trace with hash -232399835, now seen corresponding path program 1 times [2019-11-28 02:34:46,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:46,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638339567] [2019-11-28 02:34:46,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:47,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:34:47,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:47,128 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 02:34:47,129 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:34:47,137 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:34:47,138 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:34:47,138 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:34:47,151 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 02:34:47,151 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:34:47,207 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 02:34:47,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638339567] [2019-11-28 02:34:47,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:47,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-28 02:34:47,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231220051] [2019-11-28 02:34:47,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:47,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:34:47,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:47,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:47,209 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-11-28 02:34:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:47,727 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2019-11-28 02:34:47,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:34:47,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 02:34:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:47,733 INFO L225 Difference]: With dead ends: 275 [2019-11-28 02:34:47,733 INFO L226 Difference]: Without dead ends: 275 [2019-11-28 02:34:47,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-28 02:34:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 233. [2019-11-28 02:34:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-11-28 02:34:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 370 transitions. [2019-11-28 02:34:47,778 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 370 transitions. Word has length 11 [2019-11-28 02:34:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:47,779 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 370 transitions. [2019-11-28 02:34:47,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 370 transitions. [2019-11-28 02:34:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:34:47,780 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:47,780 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:47,991 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:34:47,995 INFO L410 AbstractCegarLoop]: === Iteration 4 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:47,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:47,995 INFO L82 PathProgramCache]: Analyzing trace with hash -232399836, now seen corresponding path program 1 times [2019-11-28 02:34:47,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:47,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567718499] [2019-11-28 02:34:47,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:48,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:34:48,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:48,137 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 02:34:48,138 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:34:48,140 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:34:48,140 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:34:48,140 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:34:48,145 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 02:34:48,145 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:34:48,153 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 02:34:48,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567718499] [2019-11-28 02:34:48,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:48,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:34:48,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792288229] [2019-11-28 02:34:48,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:34:48,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:34:48,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:34:48,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:48,155 INFO L87 Difference]: Start difference. First operand 233 states and 370 transitions. Second operand 3 states. [2019-11-28 02:34:48,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:48,294 INFO L93 Difference]: Finished difference Result 316 states and 486 transitions. [2019-11-28 02:34:48,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:34:48,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 02:34:48,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:48,305 INFO L225 Difference]: With dead ends: 316 [2019-11-28 02:34:48,305 INFO L226 Difference]: Without dead ends: 316 [2019-11-28 02:34:48,306 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:34:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-11-28 02:34:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 295. [2019-11-28 02:34:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2019-11-28 02:34:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2019-11-28 02:34:48,347 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2019-11-28 02:34:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:48,347 INFO L462 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2019-11-28 02:34:48,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:34:48,347 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2019-11-28 02:34:48,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:34:48,348 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:48,348 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:48,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 02:34:48,549 INFO L410 AbstractCegarLoop]: === Iteration 5 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:48,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:48,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1385546692, now seen corresponding path program 1 times [2019-11-28 02:34:48,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:48,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359857916] [2019-11-28 02:34:48,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:48,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 02:34:48,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:48,720 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 02:34:48,720 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:34:48,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:34:48,741 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 02:34:48,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359857916] [2019-11-28 02:34:48,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:48,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 02:34:48,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784834488] [2019-11-28 02:34:48,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:48,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:34:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:48,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:48,743 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2019-11-28 02:34:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:48,787 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2019-11-28 02:34:48,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:48,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-28 02:34:48,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:48,789 INFO L225 Difference]: With dead ends: 212 [2019-11-28 02:34:48,789 INFO L226 Difference]: Without dead ends: 212 [2019-11-28 02:34:48,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:48,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-11-28 02:34:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2019-11-28 02:34:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-28 02:34:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2019-11-28 02:34:48,802 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2019-11-28 02:34:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:48,802 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2019-11-28 02:34:48,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2019-11-28 02:34:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 02:34:48,804 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:48,804 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:49,009 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 02:34:49,010 INFO L410 AbstractCegarLoop]: === Iteration 6 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:49,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:49,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1527294497, now seen corresponding path program 1 times [2019-11-28 02:34:49,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:49,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289655006] [2019-11-28 02:34:49,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:49,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 02:34:49,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:34:49,142 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 02:34:49,142 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:34:49,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 02:34:49,159 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 02:34:49,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289655006] [2019-11-28 02:34:49,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:49,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 02:34:49,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243708338] [2019-11-28 02:34:49,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:49,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:34:49,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:49,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:49,162 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2019-11-28 02:34:49,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:49,207 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2019-11-28 02:34:49,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:49,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 02:34:49,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:49,213 INFO L225 Difference]: With dead ends: 281 [2019-11-28 02:34:49,213 INFO L226 Difference]: Without dead ends: 281 [2019-11-28 02:34:49,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-28 02:34:49,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2019-11-28 02:34:49,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-11-28 02:34:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2019-11-28 02:34:49,234 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2019-11-28 02:34:49,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:49,235 INFO L462 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2019-11-28 02:34:49,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:49,235 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2019-11-28 02:34:49,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 02:34:49,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:49,237 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:49,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 02:34:49,449 INFO L410 AbstractCegarLoop]: === Iteration 7 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-11-28 02:34:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:49,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1430811419, now seen corresponding path program 1 times [2019-11-28 02:34:49,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:34:49,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568197954] [2019-11-28 02:34:49,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-11-28 02:34:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:34:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:34:49,706 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 02:34:49,707 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:34:49,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 02:34:49,938 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 02:34:49,945 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,945 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 15bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,946 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 20bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,946 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,946 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,947 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 16bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,950 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,952 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,962 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-11-28 02:34:49,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,969 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,969 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-11-28 02:34:49,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-11-28 02:34:49,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,983 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,983 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,986 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,986 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,986 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,986 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:49,993 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 02:34:50,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:34:50 BoogieIcfgContainer [2019-11-28 02:34:50,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:34:50,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:34:50,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:34:50,002 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:34:50,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:45" (3/4) ... [2019-11-28 02:34:50,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:34:50,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:34:50,009 INFO L168 Benchmark]: Toolchain (without parser) took 6472.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -99.7 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:50,009 INFO L168 Benchmark]: CDTParser took 0.58 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 02:34:50,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:50,011 INFO L168 Benchmark]: Boogie Preprocessor took 102.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:34:50,011 INFO L168 Benchmark]: RCFGBuilder took 1024.42 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: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:50,012 INFO L168 Benchmark]: TraceAbstraction took 4709.89 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:50,013 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:34:50,016 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 625.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1024.42 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: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4709.89 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 15bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 20bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 16bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 581]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 581. Possible FailurePath: [L517] struct cell *S; [L518] int pc1 = 1; [L519] int pc4 = 1; [L520] static struct cell *t1 = ((void *)0); [L521] static struct cell *x1 = ((void *)0); [L550] struct cell* garbage; [L551] static struct cell *t4 = ((void *)0); [L552] static struct cell *x4 = ((void *)0); [L555] static int res4; VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=17, \old(pc4)=14, \old(res4)=21, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L583] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L584] COND TRUE __VERIFIER_nondet_int() [L585] CALL push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L524] pc1++ [L525] case 1: [L526] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L527] x1->data = 0 VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L528] x1->next = ((void *)0) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L585] RET push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L583] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L589] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L594] S = ((void *)0) [L595] t1 = ((void *)0) [L596] x1 = ((void *)0) [L597] t4 = ((void *)0) [L598] x4 = ((void *)0) [L599] return !!garbage; VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 93 locations, 20 error locations. Result: UNSAFE, OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 633 SDtfs, 462 SDslu, 552 SDs, 0 SdLazy, 198 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 122 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 2688 SizeOfPredicates, 15 NumberOfNonLiveVariables, 800 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...