./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 f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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 0.1.25-f470102 [2019-11-28 20:07:11,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:07:11,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:07:11,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:07:11,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:07:11,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:07:11,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:07:11,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:07:11,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:07:11,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:07:11,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:07:11,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:07:11,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:07:11,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:07:11,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:07:11,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:07:11,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:07:11,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:07:11,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:07:11,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:07:11,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:07:11,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:07:11,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:07:11,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:07:11,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:07:11,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:07:11,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:07:11,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:07:11,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:07:11,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:07:11,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:07:11,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:07:11,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:07:11,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:07:11,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:07:11,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:07:11,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:07:11,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:07:11,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:07:11,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:07:11,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:07:11,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:07:11,755 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:07:11,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:07:11,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:07:11,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:07:11,757 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:07:11,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:07:11,758 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:07:11,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:07:11,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:07:11,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:07:11,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:07:11,760 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:07:11,761 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:07:11,761 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:07:11,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:07:11,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:07:11,762 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:07:11,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:07:11,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:07:11,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:07:11,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:07:11,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:07:11,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:07:11,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:07:11,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:07:11,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:07:11,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:07:11,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:07:11,765 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 20:07:12,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:07:12,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:07:12,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:07:12,080 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:07:12,081 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:07:12,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 20:07:12,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376b741d5/2042f100601f47bf9bea2c8f44dd13db/FLAGa92b42094 [2019-11-28 20:07:12,643 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:07:12,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 20:07:12,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376b741d5/2042f100601f47bf9bea2c8f44dd13db/FLAGa92b42094 [2019-11-28 20:07:12,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376b741d5/2042f100601f47bf9bea2c8f44dd13db [2019-11-28 20:07:12,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:07:12,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:07:12,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:07:12,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:07:12,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:07:12,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:07:12" (1/1) ... [2019-11-28 20:07:12,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4551df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:12, skipping insertion in model container [2019-11-28 20:07:12,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:07:12" (1/1) ... [2019-11-28 20:07:12,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:07:13,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:07:13,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:07:13,436 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:07:13,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:07:13,564 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:07:13,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13 WrapperNode [2019-11-28 20:07:13,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:07:13,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:07:13,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:07:13,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:07:13,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... [2019-11-28 20:07:13,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:07:13,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:07:13,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:07:13,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:07:13,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:07:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:07:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:07:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:07:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:07:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:07:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:07:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:07:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-11-28 20:07:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-11-28 20:07:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:07:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:07:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:07:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:07:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:07:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:07:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:07:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:07:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:07:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:07:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:07:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:07:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:07:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:07:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:07:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:07:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:07:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:07:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:07:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:07:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:07:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:07:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:07:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:07:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:07:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:07:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:07:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:07:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:07:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:07:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:07:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:07:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:07:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:07:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:07:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:07:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:07:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:07:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:07:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:07:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:07:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:07:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:07:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:07:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:07:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:07:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:07:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:07:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:07:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:07:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:07:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:07:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:07:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:07:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:07:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:07:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:07:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:07:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:07:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:07:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:07:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:07:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:07:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:07:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:07:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:07:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:07:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:07:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:07:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:07:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:07:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:07:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:07:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:07:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:07:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:07:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:07:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:07:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:07:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:07:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:07:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:07:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:07:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:07:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:07:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:07:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:07:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:07:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:07:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:07:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:07:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:07:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:07:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:07:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:07:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:07:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:07:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:07:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:07:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:07:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:07:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:07:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:07:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:07:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:07:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:07:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:07:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:07:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:07:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:07:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-11-28 20:07:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:07:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:07:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:07:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-11-28 20:07:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:07:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:07:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:07:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:07:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:07:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:07:14,331 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:07:14,331 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 20:07:14,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:07:14 BoogieIcfgContainer [2019-11-28 20:07:14,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:07:14,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:07:14,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:07:14,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:07:14,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:07:12" (1/3) ... [2019-11-28 20:07:14,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c967f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:07:14, skipping insertion in model container [2019-11-28 20:07:14,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:13" (2/3) ... [2019-11-28 20:07:14,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c967f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:07:14, skipping insertion in model container [2019-11-28 20:07:14,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:07:14" (3/3) ... [2019-11-28 20:07:14,340 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-11-28 20:07:14,349 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:07:14,356 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-28 20:07:14,369 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-28 20:07:14,388 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:07:14,388 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:07:14,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:07:14,389 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:07:14,389 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:07:14,389 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:07:14,389 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:07:14,390 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:07:14,406 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-11-28 20:07:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 20:07:14,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:14,416 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:14,416 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 20:07:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:14,422 INFO L82 PathProgramCache]: Analyzing trace with hash 406886108, now seen corresponding path program 1 times [2019-11-28 20:07:14,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:14,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825822327] [2019-11-28 20:07:14,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:14,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825822327] [2019-11-28 20:07:14,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:14,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:07:14,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897918883] [2019-11-28 20:07:14,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:07:14,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:14,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:07:14,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:07:14,785 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-11-28 20:07:15,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:15,087 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2019-11-28 20:07:15,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:07:15,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 20:07:15,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:15,111 INFO L225 Difference]: With dead ends: 92 [2019-11-28 20:07:15,111 INFO L226 Difference]: Without dead ends: 89 [2019-11-28 20:07:15,117 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 20:07:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-28 20:07:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2019-11-28 20:07:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-28 20:07:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2019-11-28 20:07:15,182 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2019-11-28 20:07:15,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:15,183 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2019-11-28 20:07:15,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:07:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2019-11-28 20:07:15,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:07:15,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:15,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:15,185 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 20:07:15,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:15,185 INFO L82 PathProgramCache]: Analyzing trace with hash 155309773, now seen corresponding path program 1 times [2019-11-28 20:07:15,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:15,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67857169] [2019-11-28 20:07:15,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:15,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:15,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67857169] [2019-11-28 20:07:15,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:15,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:07:15,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632626193] [2019-11-28 20:07:15,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:15,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:15,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:15,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:15,385 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2019-11-28 20:07:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:15,715 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2019-11-28 20:07:15,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:07:15,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 20:07:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:15,721 INFO L225 Difference]: With dead ends: 91 [2019-11-28 20:07:15,722 INFO L226 Difference]: Without dead ends: 91 [2019-11-28 20:07:15,723 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 20:07:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-28 20:07:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2019-11-28 20:07:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-28 20:07:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2019-11-28 20:07:15,747 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2019-11-28 20:07:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:15,747 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2019-11-28 20:07:15,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2019-11-28 20:07:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:07:15,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:15,749 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:15,749 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 20:07:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:15,750 INFO L82 PathProgramCache]: Analyzing trace with hash 155369355, now seen corresponding path program 1 times [2019-11-28 20:07:15,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:15,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588631060] [2019-11-28 20:07:15,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:15,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588631060] [2019-11-28 20:07:15,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:15,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:07:15,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061580141] [2019-11-28 20:07:15,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:15,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:15,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:15,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:15,951 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2019-11-28 20:07:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:16,296 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2019-11-28 20:07:16,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:07:16,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 20:07:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:16,299 INFO L225 Difference]: With dead ends: 135 [2019-11-28 20:07:16,299 INFO L226 Difference]: Without dead ends: 135 [2019-11-28 20:07:16,299 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 20:07:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-28 20:07:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2019-11-28 20:07:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 20:07:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2019-11-28 20:07:16,312 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2019-11-28 20:07:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:16,312 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-11-28 20:07:16,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2019-11-28 20:07:16,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:07:16,313 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:16,314 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:16,314 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 20:07:16,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:16,315 INFO L82 PathProgramCache]: Analyzing trace with hash 521481310, now seen corresponding path program 1 times [2019-11-28 20:07:16,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:16,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773948510] [2019-11-28 20:07:16,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:16,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773948510] [2019-11-28 20:07:16,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:16,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:07:16,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853338044] [2019-11-28 20:07:16,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:16,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:16,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:16,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:16,448 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2019-11-28 20:07:16,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:16,656 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2019-11-28 20:07:16,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:07:16,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 20:07:16,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:16,661 INFO L225 Difference]: With dead ends: 149 [2019-11-28 20:07:16,661 INFO L226 Difference]: Without dead ends: 144 [2019-11-28 20:07:16,661 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 20:07:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-28 20:07:16,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2019-11-28 20:07:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-28 20:07:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2019-11-28 20:07:16,680 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2019-11-28 20:07:16,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:16,680 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2019-11-28 20:07:16,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:16,681 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2019-11-28 20:07:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 20:07:16,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:16,681 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:16,684 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 20:07:16,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:16,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811089, now seen corresponding path program 1 times [2019-11-28 20:07:16,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:16,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189242999] [2019-11-28 20:07:16,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:16,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189242999] [2019-11-28 20:07:16,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:16,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:07:16,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444944745] [2019-11-28 20:07:16,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:16,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:16,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:16,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:16,799 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2019-11-28 20:07:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:17,213 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2019-11-28 20:07:17,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:07:17,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 20:07:17,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:17,217 INFO L225 Difference]: With dead ends: 220 [2019-11-28 20:07:17,217 INFO L226 Difference]: Without dead ends: 220 [2019-11-28 20:07:17,217 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 20:07:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-28 20:07:17,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2019-11-28 20:07:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-28 20:07:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2019-11-28 20:07:17,249 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2019-11-28 20:07:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:17,249 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2019-11-28 20:07:17,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2019-11-28 20:07:17,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 20:07:17,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:17,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:17,251 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 20:07:17,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:17,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811090, now seen corresponding path program 1 times [2019-11-28 20:07:17,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:17,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435072770] [2019-11-28 20:07:17,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:17,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435072770] [2019-11-28 20:07:17,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:17,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:07:17,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928188094] [2019-11-28 20:07:17,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:17,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:17,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:17,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:17,351 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2019-11-28 20:07:17,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:17,730 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2019-11-28 20:07:17,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:07:17,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 20:07:17,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:17,734 INFO L225 Difference]: With dead ends: 271 [2019-11-28 20:07:17,734 INFO L226 Difference]: Without dead ends: 271 [2019-11-28 20:07:17,735 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 20:07:17,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-11-28 20:07:17,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2019-11-28 20:07:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-11-28 20:07:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2019-11-28 20:07:17,749 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2019-11-28 20:07:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:17,749 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2019-11-28 20:07:17,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2019-11-28 20:07:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:07:17,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:17,750 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:17,750 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 20:07:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:17,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1553554911, now seen corresponding path program 1 times [2019-11-28 20:07:17,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:17,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687642103] [2019-11-28 20:07:17,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:17,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687642103] [2019-11-28 20:07:17,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:17,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:07:17,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135753003] [2019-11-28 20:07:17,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:07:17,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:17,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:07:17,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:07:17,866 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2019-11-28 20:07:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:18,161 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2019-11-28 20:07:18,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:07:18,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 20:07:18,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:18,171 INFO L225 Difference]: With dead ends: 473 [2019-11-28 20:07:18,171 INFO L226 Difference]: Without dead ends: 473 [2019-11-28 20:07:18,172 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 20:07:18,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-11-28 20:07:18,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2019-11-28 20:07:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-11-28 20:07:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2019-11-28 20:07:18,215 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2019-11-28 20:07:18,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:18,216 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2019-11-28 20:07:18,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:07:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2019-11-28 20:07:18,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:07:18,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:18,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:18,218 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 20:07:18,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:18,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1849836300, now seen corresponding path program 1 times [2019-11-28 20:07:18,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:18,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328046096] [2019-11-28 20:07:18,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:18,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328046096] [2019-11-28 20:07:18,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:18,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:07:18,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577617956] [2019-11-28 20:07:18,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:07:18,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:18,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:07:18,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:07:18,336 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 6 states. [2019-11-28 20:07:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:18,603 INFO L93 Difference]: Finished difference Result 825 states and 1195 transitions. [2019-11-28 20:07:18,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:07:18,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 20:07:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:18,612 INFO L225 Difference]: With dead ends: 825 [2019-11-28 20:07:18,612 INFO L226 Difference]: Without dead ends: 825 [2019-11-28 20:07:18,612 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 20:07:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-11-28 20:07:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 787. [2019-11-28 20:07:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-11-28 20:07:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1155 transitions. [2019-11-28 20:07:18,643 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1155 transitions. Word has length 15 [2019-11-28 20:07:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:18,643 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1155 transitions. [2019-11-28 20:07:18,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:07:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1155 transitions. [2019-11-28 20:07:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 20:07:18,645 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:18,645 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 20:07:18,645 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 20:07:18,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:18,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1460861468, now seen corresponding path program 1 times [2019-11-28 20:07:18,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:18,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36590181] [2019-11-28 20:07:18,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:18,816 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 20:07:18,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36590181] [2019-11-28 20:07:18,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895367289] [2019-11-28 20:07:18,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:07:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:18,976 INFO L264 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 20:07:18,985 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:19,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:07:19,106 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 20:07:19,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:07:19,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-11-28 20:07:19,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573807624] [2019-11-28 20:07:19,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 20:07:19,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:07:19,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 20:07:19,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:07:19,109 INFO L87 Difference]: Start difference. First operand 787 states and 1155 transitions. Second operand 12 states. [2019-11-28 20:07:19,392 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-28 20:07:19,542 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-11-28 20:07:20,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:20,663 INFO L93 Difference]: Finished difference Result 2623 states and 3920 transitions. [2019-11-28 20:07:20,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-28 20:07:20,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-11-28 20:07:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:20,680 INFO L225 Difference]: With dead ends: 2623 [2019-11-28 20:07:20,680 INFO L226 Difference]: Without dead ends: 2623 [2019-11-28 20:07:20,681 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2019-11-28 20:07:20,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2019-11-28 20:07:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2455. [2019-11-28 20:07:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2455 states. [2019-11-28 20:07:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3589 transitions. [2019-11-28 20:07:20,788 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3589 transitions. Word has length 22 [2019-11-28 20:07:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:20,789 INFO L462 AbstractCegarLoop]: Abstraction has 2455 states and 3589 transitions. [2019-11-28 20:07:20,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 20:07:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3589 transitions. [2019-11-28 20:07:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 20:07:20,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:20,796 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 20:07:21,003 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:07:21,004 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 20:07:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1813037474, now seen corresponding path program 1 times [2019-11-28 20:07:21,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:07:21,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105058880] [2019-11-28 20:07:21,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:07:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:07:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:07:21,072 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:07:21,073 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:07:21,101 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 20:07:21,112 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 20:07:21,114 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 20:07:21,116 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 20:07:21,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:07:21 BoogieIcfgContainer [2019-11-28 20:07:21,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:07:21,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:07:21,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:07:21,131 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:07:21,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:07:14" (3/4) ... [2019-11-28 20:07:21,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:07:21,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:07:21,138 INFO L168 Benchmark]: Toolchain (without parser) took 8169.77 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.0 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -71.9 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:21,139 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:07:21,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:21,140 INFO L168 Benchmark]: Boogie Preprocessor took 65.79 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:21,141 INFO L168 Benchmark]: RCFGBuilder took 701.44 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: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:21,142 INFO L168 Benchmark]: TraceAbstraction took 6796.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 154.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.1 MB). Peak memory consumption was 208.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:21,143 INFO L168 Benchmark]: Witness Printer took 5.27 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:07:21,146 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 596.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.79 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 701.44 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: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6796.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 154.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.1 MB). Peak memory consumption was 208.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.27 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 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: 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)=18, \old(garbage)=21, \old(pc1)=13, \old(pc4)=22, \old(res4)=14, \old(S)=15, \old(S)=10, \old(t1)=20, \old(t1)=27, \old(t4)=16, \old(t4)=11, \old(x1)=19, \old(x1)=23, \old(x4)=25, \old(x4)=26, 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: 6.6s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 1018 SDslu, 960 SDs, 0 SdLazy, 1533 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.8s 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, 0.2s SatisfiabilityAnalysisTime, 1.2s 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 0.1.25-f470102 [2019-11-28 20:07:23,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:07:23,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:07:23,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:07:23,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:07:23,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:07:23,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:07:23,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:07:23,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:07:23,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:07:23,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:07:23,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:07:23,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:07:23,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:07:23,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:07:23,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:07:23,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:07:23,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:07:23,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:07:23,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:07:23,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:07:23,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:07:23,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:07:23,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:07:23,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:07:23,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:07:23,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:07:23,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:07:23,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:07:23,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:07:23,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:07:23,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:07:23,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:07:23,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:07:23,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:07:23,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:07:23,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:07:23,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:07:23,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:07:23,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:07:23,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:07:23,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 20:07:23,116 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:07:23,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:07:23,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:07:23,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:07:23,119 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:07:23,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:07:23,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:07:23,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:07:23,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:07:23,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:07:23,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:07:23,121 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:07:23,121 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:07:23,122 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:07:23,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:07:23,122 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:07:23,122 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 20:07:23,123 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 20:07:23,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:07:23,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:07:23,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:07:23,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:07:23,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:07:23,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:07:23,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:07:23,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:07:23,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:07:23,125 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 20:07:23,125 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 20:07:23,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:07:23,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 20:07:23,126 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 20:07:23,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:07:23,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:07:23,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:07:23,435 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:07:23,436 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:07:23,437 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 20:07:23,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/065f3a545/e8372d2484e44877aa71df9c3767c500/FLAGc3a43b56d [2019-11-28 20:07:23,998 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:07:23,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-11-28 20:07:24,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/065f3a545/e8372d2484e44877aa71df9c3767c500/FLAGc3a43b56d [2019-11-28 20:07:24,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/065f3a545/e8372d2484e44877aa71df9c3767c500 [2019-11-28 20:07:24,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:07:24,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:07:24,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:07:24,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:07:24,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:07:24,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:24,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9dd1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24, skipping insertion in model container [2019-11-28 20:07:24,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:24,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:07:24,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:07:24,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:07:24,859 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:07:24,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:07:24,986 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:07:24,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24 WrapperNode [2019-11-28 20:07:24,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:07:24,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:07:24,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:07:24,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:07:25,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... [2019-11-28 20:07:25,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:07:25,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:07:25,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:07:25,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:07:25,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:07:25,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:07:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:07:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 20:07:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:07:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:07:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:07:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:07:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:07:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-11-28 20:07:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-11-28 20:07:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:07:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:07:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:07:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:07:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:07:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:07:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:07:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:07:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:07:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:07:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:07:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:07:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:07:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:07:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:07:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:07:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:07:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:07:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:07:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:07:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:07:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:07:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:07:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:07:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:07:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:07:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:07:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:07:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:07:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:07:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:07:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:07:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:07:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:07:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:07:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:07:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:07:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:07:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:07:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:07:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:07:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:07:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:07:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:07:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:07:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:07:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:07:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:07:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:07:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:07:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:07:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:07:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:07:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:07:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:07:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:07:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:07:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:07:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:07:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:07:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:07:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-11-28 20:07:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:07:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 20:07:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:07:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-11-28 20:07:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:07:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 20:07:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:07:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:07:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:07:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:07:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 20:07:25,946 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:07:25,946 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 20:07:25,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:07:25 BoogieIcfgContainer [2019-11-28 20:07:25,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:07:25,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:07:25,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:07:25,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:07:25,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:07:24" (1/3) ... [2019-11-28 20:07:25,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b37662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:07:25, skipping insertion in model container [2019-11-28 20:07:25,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:07:24" (2/3) ... [2019-11-28 20:07:25,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b37662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:07:25, skipping insertion in model container [2019-11-28 20:07:25,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:07:25" (3/3) ... [2019-11-28 20:07:25,954 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-11-28 20:07:25,961 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:07:25,968 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-28 20:07:25,979 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-28 20:07:25,997 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:07:25,998 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:07:25,998 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:07:25,998 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:07:25,998 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:07:25,998 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:07:25,998 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:07:25,999 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:07:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-11-28 20:07:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 20:07:26,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:26,024 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:26,025 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 20:07:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:26,031 INFO L82 PathProgramCache]: Analyzing trace with hash -526373776, now seen corresponding path program 1 times [2019-11-28 20:07:26,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:26,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786999300] [2019-11-28 20:07:26,044 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 20:07:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:26,253 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:07:26,258 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:26,299 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:07:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:26,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786999300] [2019-11-28 20:07:26,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:26,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 20:07:26,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379680848] [2019-11-28 20:07:26,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:07:26,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:07:26,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:07:26,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:07:26,370 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-11-28 20:07:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:26,467 INFO L93 Difference]: Finished difference Result 123 states and 156 transitions. [2019-11-28 20:07:26,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:07:26,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 20:07:26,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:26,487 INFO L225 Difference]: With dead ends: 123 [2019-11-28 20:07:26,488 INFO L226 Difference]: Without dead ends: 120 [2019-11-28 20:07:26,490 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 20:07:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-28 20:07:26,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2019-11-28 20:07:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-28 20:07:26,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2019-11-28 20:07:26,571 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2019-11-28 20:07:26,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:26,572 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2019-11-28 20:07:26,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:07:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2019-11-28 20:07:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 20:07:26,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:26,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:26,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 20:07:26,797 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 20:07:26,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:26,798 INFO L82 PathProgramCache]: Analyzing trace with hash 862280744, now seen corresponding path program 1 times [2019-11-28 20:07:26,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:26,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083023291] [2019-11-28 20:07:26,800 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 20:07:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:26,956 INFO L264 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:07:26,957 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:26,968 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:07:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:26,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083023291] [2019-11-28 20:07:26,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:26,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 20:07:26,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353431291] [2019-11-28 20:07:26,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:07:26,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:07:26,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:07:26,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:07:26,978 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2019-11-28 20:07:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:27,126 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2019-11-28 20:07:27,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:07:27,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 20:07:27,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:27,129 INFO L225 Difference]: With dead ends: 128 [2019-11-28 20:07:27,129 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 20:07:27,130 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 20:07:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 20:07:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2019-11-28 20:07:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-28 20:07:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-11-28 20:07:27,149 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2019-11-28 20:07:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:27,150 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-11-28 20:07:27,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:07:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-11-28 20:07:27,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:07:27,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:27,151 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:27,365 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 20:07:27,366 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 20:07:27,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:27,367 INFO L82 PathProgramCache]: Analyzing trace with hash -232399835, now seen corresponding path program 1 times [2019-11-28 20:07:27,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:27,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625525231] [2019-11-28 20:07:27,369 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 20:07:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:27,543 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:07:27,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:27,596 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:07:27,597 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:07:27,605 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:07:27,606 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:07:27,606 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 20:07:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:27,618 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:07:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:27,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625525231] [2019-11-28 20:07:27,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:27,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-28 20:07:27,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888740919] [2019-11-28 20:07:27,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:27,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:07:27,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:27,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:27,675 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-11-28 20:07:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:28,065 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2019-11-28 20:07:28,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:07:28,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 20:07:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:28,070 INFO L225 Difference]: With dead ends: 275 [2019-11-28 20:07:28,070 INFO L226 Difference]: Without dead ends: 275 [2019-11-28 20:07:28,071 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 20:07:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-28 20:07:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 233. [2019-11-28 20:07:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-11-28 20:07:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 370 transitions. [2019-11-28 20:07:28,096 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 370 transitions. Word has length 11 [2019-11-28 20:07:28,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:28,097 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 370 transitions. [2019-11-28 20:07:28,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 370 transitions. [2019-11-28 20:07:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:07:28,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:28,098 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:28,309 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 20:07:28,310 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 20:07:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash -232399836, now seen corresponding path program 1 times [2019-11-28 20:07:28,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:28,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207097132] [2019-11-28 20:07:28,313 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 20:07:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:28,437 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:07:28,439 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:28,446 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:07:28,446 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:07:28,449 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:07:28,449 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:07:28,450 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 20:07:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:28,455 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:07:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:28,464 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207097132] [2019-11-28 20:07:28,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:28,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 20:07:28,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286440498] [2019-11-28 20:07:28,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:07:28,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:07:28,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:07:28,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:07:28,466 INFO L87 Difference]: Start difference. First operand 233 states and 370 transitions. Second operand 3 states. [2019-11-28 20:07:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:28,624 INFO L93 Difference]: Finished difference Result 316 states and 486 transitions. [2019-11-28 20:07:28,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:07:28,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 20:07:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:28,628 INFO L225 Difference]: With dead ends: 316 [2019-11-28 20:07:28,628 INFO L226 Difference]: Without dead ends: 316 [2019-11-28 20:07:28,629 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 20:07:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-11-28 20:07:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 295. [2019-11-28 20:07:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2019-11-28 20:07:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2019-11-28 20:07:28,665 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2019-11-28 20:07:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:28,665 INFO L462 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2019-11-28 20:07:28,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:07:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2019-11-28 20:07:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 20:07:28,666 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:28,666 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:28,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 20:07:28,878 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 20:07:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:28,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1385546692, now seen corresponding path program 1 times [2019-11-28 20:07:28,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:28,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742853045] [2019-11-28 20:07:28,880 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 20:07:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:29,032 INFO L264 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:07:29,035 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:29,060 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:07:29,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:07:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:29,092 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742853045] [2019-11-28 20:07:29,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:29,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 20:07:29,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534046063] [2019-11-28 20:07:29,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:29,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:07:29,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:29,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:29,094 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2019-11-28 20:07:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:29,143 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2019-11-28 20:07:29,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:07:29,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-28 20:07:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:29,145 INFO L225 Difference]: With dead ends: 212 [2019-11-28 20:07:29,146 INFO L226 Difference]: Without dead ends: 212 [2019-11-28 20:07:29,146 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 20:07:29,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-11-28 20:07:29,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2019-11-28 20:07:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-28 20:07:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2019-11-28 20:07:29,164 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2019-11-28 20:07:29,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:29,164 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2019-11-28 20:07:29,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2019-11-28 20:07:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 20:07:29,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:29,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:07:29,377 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 20:07:29,378 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 20:07:29,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:29,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1527294497, now seen corresponding path program 1 times [2019-11-28 20:07:29,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:29,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479664806] [2019-11-28 20:07:29,380 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 20:07:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:07:29,495 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:07:29,497 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:07:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:29,513 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:07:29,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:07:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:07:29,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479664806] [2019-11-28 20:07:29,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:07:29,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 20:07:29,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892276961] [2019-11-28 20:07:29,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:07:29,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:07:29,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:07:29,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:07:29,527 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2019-11-28 20:07:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:07:29,567 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2019-11-28 20:07:29,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:07:29,567 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 20:07:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:07:29,570 INFO L225 Difference]: With dead ends: 281 [2019-11-28 20:07:29,571 INFO L226 Difference]: Without dead ends: 281 [2019-11-28 20:07:29,572 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 20:07:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-28 20:07:29,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2019-11-28 20:07:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-11-28 20:07:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2019-11-28 20:07:29,594 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2019-11-28 20:07:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:07:29,594 INFO L462 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2019-11-28 20:07:29,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:07:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2019-11-28 20:07:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:07:29,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:07:29,596 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 20:07:29,807 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 20:07:29,808 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 20:07:29,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:07:29,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1430811419, now seen corresponding path program 1 times [2019-11-28 20:07:29,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:07:29,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117500968] [2019-11-28 20:07:29,809 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 20:07:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:07:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:07:30,089 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 20:07:30,089 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:07:30,290 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 20:07:30,322 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 20:07:30,337 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,337 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,337 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 20bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,338 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,338 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,338 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,339 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,339 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,340 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 16bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,340 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,340 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 15bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,340 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,342 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,343 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,344 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,344 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,344 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,344 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,345 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,345 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,345 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,346 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,346 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,346 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,347 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,348 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,348 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,349 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,349 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,349 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,349 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,350 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,350 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,350 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 20:07:30,358 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,358 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,358 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,359 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,360 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,360 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,361 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,361 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,361 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,362 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,362 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,362 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,362 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,363 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,363 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 20:07:30,363 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,364 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,364 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,365 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,365 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,365 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,366 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,366 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,366 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,367 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,367 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,367 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 20:07:30,368 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,368 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,368 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,368 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,369 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,369 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,371 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,371 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,371 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,371 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,372 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,372 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,372 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,373 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,374 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,374 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,374 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,374 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,375 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,375 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,375 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,375 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,375 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,376 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,376 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,378 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,379 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,379 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,379 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,380 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,380 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,380 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,380 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,380 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,380 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,381 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,381 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,382 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-11-28 20:07:30,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:07:30 BoogieIcfgContainer [2019-11-28 20:07:30,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:07:30,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:07:30,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:07:30,403 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:07:30,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:07:25" (3/4) ... [2019-11-28 20:07:30,407 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:07:30,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:07:30,409 INFO L168 Benchmark]: Toolchain (without parser) took 6041.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -101.4 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:30,410 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:07:30,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:30,411 INFO L168 Benchmark]: Boogie Preprocessor took 88.38 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 20:07:30,412 INFO L168 Benchmark]: RCFGBuilder took 871.21 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 20:07:30,413 INFO L168 Benchmark]: TraceAbstraction took 4453.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.4 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:07:30,413 INFO L168 Benchmark]: Witness Printer took 4.98 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 20:07:30,417 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 618.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.38 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 871.21 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 4453.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.4 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.98 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 6bv32 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 20bv32 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 12bv32 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 10bv32 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 16bv32 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 15bv32 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 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: 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: 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: 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 * 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: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 633 SDtfs, 462 SDslu, 552 SDs, 0 SdLazy, 198 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s 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, 0.3s 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...