./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/sll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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/forester-heap/sll-optional-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9782fe34c3bae6ab09bbe7588de1b0d436c1fccc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:20:20,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:20:20,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:20:20,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:20:20,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:20:20,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:20:20,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:20:20,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:20:20,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:20:20,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:20:20,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:20:20,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:20:20,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:20:20,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:20:20,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:20:20,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:20:20,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:20:20,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:20:20,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:20:20,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:20:20,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:20:20,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:20:20,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:20:20,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:20:20,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:20:20,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:20:20,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:20:20,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:20:20,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:20:20,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:20:20,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:20:20,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:20:20,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:20:20,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:20:20,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:20:20,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:20:20,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:20:20,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:20:20,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:20:20,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:20:20,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:20:20,769 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 20:20:20,801 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:20:20,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:20:20,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:20:20,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:20:20,808 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:20:20,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:20:20,808 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:20:20,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:20:20,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:20:20,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:20:20,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:20:20,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:20:20,812 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:20:20,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:20:20,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:20:20,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:20:20,814 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:20:20,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:20:20,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:20:20,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:20:20,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:20:20,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:20:20,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:20:20,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:20:20,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:20:20,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:20:20,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:20:20,817 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-memcleanup) ) 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 -> 9782fe34c3bae6ab09bbe7588de1b0d436c1fccc [2019-11-28 20:20:21,172 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:20:21,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:20:21,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:20:21,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:20:21,203 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:20:21,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-optional-2.i [2019-11-28 20:20:21,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf44b7709/517d49e0cf9b40c3a987264fb4d0c218/FLAG4c9844b61 [2019-11-28 20:20:21,898 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:20:21,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-optional-2.i [2019-11-28 20:20:21,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf44b7709/517d49e0cf9b40c3a987264fb4d0c218/FLAG4c9844b61 [2019-11-28 20:20:22,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf44b7709/517d49e0cf9b40c3a987264fb4d0c218 [2019-11-28 20:20:22,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:20:22,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:20:22,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:22,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:20:22,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:20:22,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a89df04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22, skipping insertion in model container [2019-11-28 20:20:22,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:20:22,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:20:22,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:22,654 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:20:22,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:22,779 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:20:22,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22 WrapperNode [2019-11-28 20:20:22,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:22,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:20:22,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:20:22,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:20:22,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (1/1) ... [2019-11-28 20:20:22,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:20:22,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:20:22,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:20:22,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:20:22,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (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 20:20:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:20:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:20:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:20:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:20:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:20:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:20:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:20:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:20:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:20:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:20:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:20:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:20:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:20:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:20:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:20:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:20:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:20:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:20:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:20:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:20:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:20:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:20:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:20:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:20:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:20:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:20:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:20:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:20:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:20:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:20:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:20:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:20:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:20:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:20:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:20:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:20:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:20:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:20:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:20:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:20:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:20:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:20:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:20:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:20:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:20:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-28 20:20:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:20:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:20:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:20:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:20:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:20:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:20:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:20:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:20:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:20:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:20:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:20:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:20:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:20:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:20:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:20:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:20:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:20:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:20:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:20:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:20:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:20:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:20:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:20:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:20:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:20:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:20:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:20:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:20:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:20:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:20:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:20:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:20:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:20:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:20:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:20:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:20:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:20:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:20:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:20:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:20:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:20:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:20:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:20:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:20:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:20:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:20:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:20:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:20:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:20:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:20:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:20:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:20:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:20:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:20:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:20:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:20:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:20:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:20:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:20:23,780 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:20:23,780 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:20:23,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:23 BoogieIcfgContainer [2019-11-28 20:20:23,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:20:23,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:20:23,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:20:23,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:20:23,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:22" (1/3) ... [2019-11-28 20:20:23,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc7734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:23, skipping insertion in model container [2019-11-28 20:20:23,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:22" (2/3) ... [2019-11-28 20:20:23,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc7734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:23, skipping insertion in model container [2019-11-28 20:20:23,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:23" (3/3) ... [2019-11-28 20:20:23,790 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i [2019-11-28 20:20:23,799 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:20:23,807 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 60 error locations. [2019-11-28 20:20:23,821 INFO L249 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2019-11-28 20:20:23,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:20:23,844 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:20:23,844 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:20:23,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:20:23,844 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:20:23,844 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:20:23,845 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:20:23,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:20:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2019-11-28 20:20:23,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:20:23,875 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:23,876 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:23,876 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:23,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:23,883 INFO L82 PathProgramCache]: Analyzing trace with hash 637094669, now seen corresponding path program 1 times [2019-11-28 20:20:23,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:23,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876064677] [2019-11-28 20:20:23,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:24,105 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 20:20:24,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876064677] [2019-11-28 20:20:24,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:24,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:24,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392238381] [2019-11-28 20:20:24,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:20:24,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:24,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:20:24,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:24,137 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 4 states. [2019-11-28 20:20:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:24,655 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2019-11-28 20:20:24,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:24,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:20:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:24,674 INFO L225 Difference]: With dead ends: 131 [2019-11-28 20:20:24,674 INFO L226 Difference]: Without dead ends: 127 [2019-11-28 20:20:24,676 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:20:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-11-28 20:20:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2019-11-28 20:20:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-28 20:20:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-11-28 20:20:24,732 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 7 [2019-11-28 20:20:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:24,733 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-11-28 20:20:24,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:20:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-11-28 20:20:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:20:24,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:24,735 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:24,735 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:24,736 INFO L82 PathProgramCache]: Analyzing trace with hash 637094670, now seen corresponding path program 1 times [2019-11-28 20:20:24,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:24,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079077992] [2019-11-28 20:20:24,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:24,820 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 20:20:24,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079077992] [2019-11-28 20:20:24,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:24,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:24,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603200691] [2019-11-28 20:20:24,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:20:24,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:24,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:20:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:24,825 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 4 states. [2019-11-28 20:20:25,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:25,158 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2019-11-28 20:20:25,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:20:25,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:20:25,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:25,162 INFO L225 Difference]: With dead ends: 117 [2019-11-28 20:20:25,162 INFO L226 Difference]: Without dead ends: 117 [2019-11-28 20:20:25,165 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:25,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-11-28 20:20:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2019-11-28 20:20:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-28 20:20:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2019-11-28 20:20:25,188 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 7 [2019-11-28 20:20:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:25,189 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2019-11-28 20:20:25,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:20:25,189 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2019-11-28 20:20:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:20:25,191 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:25,191 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:25,192 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash 65960736, now seen corresponding path program 1 times [2019-11-28 20:20:25,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:25,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777966270] [2019-11-28 20:20:25,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:25,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777966270] [2019-11-28 20:20:25,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:25,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:25,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143448133] [2019-11-28 20:20:25,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:25,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:25,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:25,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:25,331 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 6 states. [2019-11-28 20:20:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:26,012 INFO L93 Difference]: Finished difference Result 228 states and 247 transitions. [2019-11-28 20:20:26,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:20:26,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 20:20:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:26,016 INFO L225 Difference]: With dead ends: 228 [2019-11-28 20:20:26,016 INFO L226 Difference]: Without dead ends: 228 [2019-11-28 20:20:26,016 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-11-28 20:20:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 112. [2019-11-28 20:20:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-28 20:20:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2019-11-28 20:20:26,027 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 14 [2019-11-28 20:20:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:26,028 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2019-11-28 20:20:26,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2019-11-28 20:20:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:20:26,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:26,030 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:26,030 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:26,031 INFO L82 PathProgramCache]: Analyzing trace with hash 65960737, now seen corresponding path program 1 times [2019-11-28 20:20:26,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:26,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997315927] [2019-11-28 20:20:26,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:26,177 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 20:20:26,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997315927] [2019-11-28 20:20:26,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:26,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:26,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862333956] [2019-11-28 20:20:26,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:26,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:26,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:26,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:26,185 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 6 states. [2019-11-28 20:20:26,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:26,906 INFO L93 Difference]: Finished difference Result 202 states and 220 transitions. [2019-11-28 20:20:26,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:20:26,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 20:20:26,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:26,909 INFO L225 Difference]: With dead ends: 202 [2019-11-28 20:20:26,909 INFO L226 Difference]: Without dead ends: 202 [2019-11-28 20:20:26,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-11-28 20:20:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 111. [2019-11-28 20:20:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-28 20:20:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2019-11-28 20:20:26,919 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 14 [2019-11-28 20:20:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:26,919 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2019-11-28 20:20:26,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:26,920 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2019-11-28 20:20:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:20:26,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:26,921 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:26,921 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:26,922 INFO L82 PathProgramCache]: Analyzing trace with hash -903844465, now seen corresponding path program 1 times [2019-11-28 20:20:26,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:26,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174115999] [2019-11-28 20:20:26,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:27,005 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 20:20:27,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174115999] [2019-11-28 20:20:27,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:27,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:27,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551578916] [2019-11-28 20:20:27,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:27,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:27,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:27,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:27,008 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 5 states. [2019-11-28 20:20:27,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:27,274 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2019-11-28 20:20:27,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:20:27,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-28 20:20:27,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:27,276 INFO L225 Difference]: With dead ends: 115 [2019-11-28 20:20:27,276 INFO L226 Difference]: Without dead ends: 115 [2019-11-28 20:20:27,276 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-28 20:20:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 106. [2019-11-28 20:20:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-28 20:20:27,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2019-11-28 20:20:27,284 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 16 [2019-11-28 20:20:27,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:27,285 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2019-11-28 20:20:27,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:27,285 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2019-11-28 20:20:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:20:27,286 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:27,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:27,287 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:27,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:27,287 INFO L82 PathProgramCache]: Analyzing trace with hash -903844464, now seen corresponding path program 1 times [2019-11-28 20:20:27,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:27,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809271288] [2019-11-28 20:20:27,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:27,384 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 20:20:27,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809271288] [2019-11-28 20:20:27,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:27,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:20:27,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389179845] [2019-11-28 20:20:27,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:27,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:27,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:27,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:27,387 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 7 states. [2019-11-28 20:20:27,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:27,776 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2019-11-28 20:20:27,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:20:27,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-11-28 20:20:27,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:27,778 INFO L225 Difference]: With dead ends: 147 [2019-11-28 20:20:27,778 INFO L226 Difference]: Without dead ends: 147 [2019-11-28 20:20:27,779 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:20:27,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-28 20:20:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 124. [2019-11-28 20:20:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-28 20:20:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-11-28 20:20:27,785 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 16 [2019-11-28 20:20:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:27,786 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-11-28 20:20:27,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-11-28 20:20:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:20:27,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:27,787 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:27,788 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:27,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1280450289, now seen corresponding path program 1 times [2019-11-28 20:20:27,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:27,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444179540] [2019-11-28 20:20:27,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:27,931 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 20:20:27,932 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444179540] [2019-11-28 20:20:27,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:27,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:20:27,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535624008] [2019-11-28 20:20:27,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:27,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:27,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:27,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:27,937 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 7 states. [2019-11-28 20:20:28,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:28,497 INFO L93 Difference]: Finished difference Result 182 states and 214 transitions. [2019-11-28 20:20:28,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 20:20:28,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-28 20:20:28,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:28,499 INFO L225 Difference]: With dead ends: 182 [2019-11-28 20:20:28,499 INFO L226 Difference]: Without dead ends: 182 [2019-11-28 20:20:28,500 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:20:28,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-28 20:20:28,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 110. [2019-11-28 20:20:28,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-28 20:20:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2019-11-28 20:20:28,507 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 19 [2019-11-28 20:20:28,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:28,508 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2019-11-28 20:20:28,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2019-11-28 20:20:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:20:28,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:28,509 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:28,510 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:28,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1280450290, now seen corresponding path program 1 times [2019-11-28 20:20:28,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:28,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567382901] [2019-11-28 20:20:28,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:28,567 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 20:20:28,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567382901] [2019-11-28 20:20:28,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:28,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:20:28,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263628216] [2019-11-28 20:20:28,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:28,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:28,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:28,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:28,570 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 7 states. [2019-11-28 20:20:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:28,970 INFO L93 Difference]: Finished difference Result 158 states and 183 transitions. [2019-11-28 20:20:28,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:20:28,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-28 20:20:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:28,972 INFO L225 Difference]: With dead ends: 158 [2019-11-28 20:20:28,972 INFO L226 Difference]: Without dead ends: 158 [2019-11-28 20:20:28,972 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:20:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-28 20:20:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 109. [2019-11-28 20:20:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-28 20:20:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2019-11-28 20:20:28,978 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 19 [2019-11-28 20:20:28,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:28,979 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2019-11-28 20:20:28,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2019-11-28 20:20:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 20:20:28,980 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:28,981 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:28,981 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:28,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1881660023, now seen corresponding path program 1 times [2019-11-28 20:20:28,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:28,982 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182405496] [2019-11-28 20:20:28,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:29,027 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 20:20:29,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182405496] [2019-11-28 20:20:29,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:29,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:29,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706014485] [2019-11-28 20:20:29,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:29,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:29,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:29,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:29,030 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 5 states. [2019-11-28 20:20:29,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:29,263 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2019-11-28 20:20:29,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:29,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-28 20:20:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:29,266 INFO L225 Difference]: With dead ends: 130 [2019-11-28 20:20:29,266 INFO L226 Difference]: Without dead ends: 130 [2019-11-28 20:20:29,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-28 20:20:29,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 109. [2019-11-28 20:20:29,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-28 20:20:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2019-11-28 20:20:29,274 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 21 [2019-11-28 20:20:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:29,274 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2019-11-28 20:20:29,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2019-11-28 20:20:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 20:20:29,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:29,276 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:29,277 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr59ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1775325807, now seen corresponding path program 1 times [2019-11-28 20:20:29,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:29,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239597708] [2019-11-28 20:20:29,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:29,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:20:29,355 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:20:29,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:29 BoogieIcfgContainer [2019-11-28 20:20:29,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:20:29,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:20:29,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:20:29,422 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:20:29,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:23" (3/4) ... [2019-11-28 20:20:29,426 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:20:29,555 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:20:29,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:20:29,559 INFO L168 Benchmark]: Toolchain (without parser) took 7362.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 959.0 MB in the beginning and 887.0 MB in the end (delta: 72.0 MB). Peak memory consumption was 291.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:29,560 INFO L168 Benchmark]: CDTParser took 1.36 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 20:20:29,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:29,565 INFO L168 Benchmark]: Boogie Preprocessor took 97.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:29,571 INFO L168 Benchmark]: RCFGBuilder took 903.08 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: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:29,572 INFO L168 Benchmark]: TraceAbstraction took 5637.49 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 887.0 MB in the end (delta: 167.0 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:29,573 INFO L168 Benchmark]: Witness Printer took 134.19 ms. Allocated memory is still 1.2 GB. Free memory is still 887.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:20:29,585 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36 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 584.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 97.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 903.08 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: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5637.49 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 887.0 MB in the end (delta: 167.0 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. * Witness Printer took 134.19 ms. Allocated memory is still 1.2 GB. Free memory is still 887.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L985] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L986] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L987] COND FALSE !(__VERIFIER_nondet_int()) [L987] COND FALSE !(__VERIFIER_nondet_int()) [L987] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L987] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L988] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L990] COND FALSE !(__VERIFIER_nondet_int()) [L993] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L994] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L996] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L996] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0, x->data == 2 && x->opt == x=0] [L996] COND TRUE !(x->data == 2 && x->opt == x) [L996] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 130 locations, 60 error locations. Result: UNSAFE, OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 1074 SDslu, 1263 SDs, 0 SdLazy, 2846 SolverSat, 134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, 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, 9 MinimizatonAttempts, 391 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 7878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 proved your program to be incorrect! Received shutdown request...