./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/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer --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 [2019-12-07 18:49:34,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:49:34,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:49:34,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:49:34,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:49:34,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:49:34,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:49:34,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:49:34,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:49:34,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:49:34,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:49:34,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:49:34,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:49:34,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:49:34,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:49:34,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:49:34,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:49:34,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:49:34,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:49:34,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:49:34,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:49:34,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:49:34,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:49:34,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:49:34,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:49:34,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:49:34,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:49:34,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:49:34,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:49:34,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:49:34,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:49:34,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:49:34,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:49:34,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:49:34,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:49:34,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:49:34,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:49:34,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:49:34,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:49:34,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:49:34,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:49:34,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-12-07 18:49:34,098 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:49:34,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:49:34,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:49:34,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:49:34,099 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:49:34,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:49:34,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 18:49:34,101 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:49:34,101 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:49:34,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:49:34,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:49:34,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:49:34,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:49:34,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:49:34,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:49:34,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:49:34,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:49:34,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:49:34,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:49:34,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 [2019-12-07 18:49:34,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:49:34,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:49:34,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:49:34,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:49:34,218 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:49:34,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-optional-2.i [2019-12-07 18:49:34,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/data/894f1c394/bd933d08ecc34f5eae1acb72ffd6ce66/FLAG84209dfa7 [2019-12-07 18:49:34,713 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:49:34,714 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/sv-benchmarks/c/forester-heap/sll-optional-2.i [2019-12-07 18:49:34,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/data/894f1c394/bd933d08ecc34f5eae1acb72ffd6ce66/FLAG84209dfa7 [2019-12-07 18:49:34,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/data/894f1c394/bd933d08ecc34f5eae1acb72ffd6ce66 [2019-12-07 18:49:34,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:49:34,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 18:49:34,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:49:34,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:49:34,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:49:34,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:49:34" (1/1) ... [2019-12-07 18:49:34,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf817c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:34, skipping insertion in model container [2019-12-07 18:49:34,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:49:34" (1/1) ... [2019-12-07 18:49:34,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:49:34,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:49:34,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:49:34,967 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:49:34,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:49:35,024 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:49:35,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35 WrapperNode [2019-12-07 18:49:35,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:49:35,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:49:35,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:49:35,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:49:35,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:49:35,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:49:35,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:49:35,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:49:35,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:49:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 18:49:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:49:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 18:49:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 18:49:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 18:49:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 18:49:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 18:49:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 18:49:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 18:49:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 18:49:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 18:49:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 18:49:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:49:35,463 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:49:35,463 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 18:49:35,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:49:35 BoogieIcfgContainer [2019-12-07 18:49:35,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:49:35,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:49:35,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:49:35,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:49:35,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:49:34" (1/3) ... [2019-12-07 18:49:35,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367d74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:49:35, skipping insertion in model container [2019-12-07 18:49:35,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (2/3) ... [2019-12-07 18:49:35,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367d74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:49:35, skipping insertion in model container [2019-12-07 18:49:35,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:49:35" (3/3) ... [2019-12-07 18:49:35,469 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i [2019-12-07 18:49:35,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:49:35,480 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 60 error locations. [2019-12-07 18:49:35,487 INFO L249 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2019-12-07 18:49:35,499 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:49:35,499 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 18:49:35,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:49:35,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:49:35,500 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:49:35,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:49:35,500 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:49:35,500 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:49:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2019-12-07 18:49:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:49:35,519 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:35,519 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:35,520 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]=== [2019-12-07 18:49:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:35,523 INFO L82 PathProgramCache]: Analyzing trace with hash 637094669, now seen corresponding path program 1 times [2019-12-07 18:49:35,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:35,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668169004] [2019-12-07 18:49:35,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:35,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668169004] [2019-12-07 18:49:35,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:35,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:49:35,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311203069] [2019-12-07 18:49:35,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:49:35,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:35,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:49:35,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:49:35,659 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 4 states. [2019-12-07 18:49:35,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:35,897 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2019-12-07 18:49:35,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:49:35,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 18:49:35,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:35,906 INFO L225 Difference]: With dead ends: 131 [2019-12-07 18:49:35,906 INFO L226 Difference]: Without dead ends: 127 [2019-12-07 18:49:35,907 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 [2019-12-07 18:49:35,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-12-07 18:49:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2019-12-07 18:49:35,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 18:49:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-12-07 18:49:35,938 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 7 [2019-12-07 18:49:35,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:35,939 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-12-07 18:49:35,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:49:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-12-07 18:49:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:49:35,939 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:35,939 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:35,939 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]=== [2019-12-07 18:49:35,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:35,940 INFO L82 PathProgramCache]: Analyzing trace with hash 637094670, now seen corresponding path program 1 times [2019-12-07 18:49:35,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:35,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821208413] [2019-12-07 18:49:35,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:35,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821208413] [2019-12-07 18:49:35,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:35,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:49:35,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966578295] [2019-12-07 18:49:35,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:49:35,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:35,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:49:35,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:49:35,981 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 4 states. [2019-12-07 18:49:36,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,126 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2019-12-07 18:49:36,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:49:36,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 18:49:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,128 INFO L225 Difference]: With dead ends: 117 [2019-12-07 18:49:36,128 INFO L226 Difference]: Without dead ends: 117 [2019-12-07 18:49:36,129 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 [2019-12-07 18:49:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-12-07 18:49:36,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2019-12-07 18:49:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-12-07 18:49:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2019-12-07 18:49:36,136 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 7 [2019-12-07 18:49:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,136 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2019-12-07 18:49:36,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:49:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2019-12-07 18:49:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:49:36,137 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,137 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:36,137 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]=== [2019-12-07 18:49:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,137 INFO L82 PathProgramCache]: Analyzing trace with hash 65960736, now seen corresponding path program 1 times [2019-12-07 18:49:36,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836412286] [2019-12-07 18:49:36,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:36,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836412286] [2019-12-07 18:49:36,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:49:36,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269471680] [2019-12-07 18:49:36,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:49:36,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:49:36,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:49:36,195 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 6 states. [2019-12-07 18:49:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,555 INFO L93 Difference]: Finished difference Result 228 states and 247 transitions. [2019-12-07 18:49:36,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:49:36,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 18:49:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,563 INFO L225 Difference]: With dead ends: 228 [2019-12-07 18:49:36,564 INFO L226 Difference]: Without dead ends: 228 [2019-12-07 18:49:36,564 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 [2019-12-07 18:49:36,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-12-07 18:49:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 112. [2019-12-07 18:49:36,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-12-07 18:49:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2019-12-07 18:49:36,574 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 14 [2019-12-07 18:49:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,574 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2019-12-07 18:49:36,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:49:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2019-12-07 18:49:36,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:49:36,575 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:36,576 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]=== [2019-12-07 18:49:36,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,577 INFO L82 PathProgramCache]: Analyzing trace with hash 65960737, now seen corresponding path program 1 times [2019-12-07 18:49:36,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539767025] [2019-12-07 18:49:36,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:36,650 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539767025] [2019-12-07 18:49:36,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:49:36,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614290928] [2019-12-07 18:49:36,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:49:36,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:49:36,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:49:36,651 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 6 states. [2019-12-07 18:49:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,991 INFO L93 Difference]: Finished difference Result 202 states and 220 transitions. [2019-12-07 18:49:36,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:49:36,991 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 18:49:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,992 INFO L225 Difference]: With dead ends: 202 [2019-12-07 18:49:36,993 INFO L226 Difference]: Without dead ends: 202 [2019-12-07 18:49:36,993 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 [2019-12-07 18:49:36,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-12-07 18:49:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 111. [2019-12-07 18:49:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-12-07 18:49:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2019-12-07 18:49:36,999 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 14 [2019-12-07 18:49:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,999 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2019-12-07 18:49:36,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:49:36,999 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2019-12-07 18:49:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:49:36,999 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:37,000 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:37,000 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]=== [2019-12-07 18:49:37,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:37,000 INFO L82 PathProgramCache]: Analyzing trace with hash -903844465, now seen corresponding path program 1 times [2019-12-07 18:49:37,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:37,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436687485] [2019-12-07 18:49:37,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:37,042 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436687485] [2019-12-07 18:49:37,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:37,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:49:37,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928847215] [2019-12-07 18:49:37,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:49:37,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:37,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:49:37,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:49:37,043 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 5 states. [2019-12-07 18:49:37,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:37,187 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2019-12-07 18:49:37,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:49:37,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-12-07 18:49:37,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:37,189 INFO L225 Difference]: With dead ends: 115 [2019-12-07 18:49:37,189 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 18:49:37,189 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 [2019-12-07 18:49:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 18:49:37,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 106. [2019-12-07 18:49:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-12-07 18:49:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2019-12-07 18:49:37,193 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 16 [2019-12-07 18:49:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:37,194 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2019-12-07 18:49:37,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:49:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2019-12-07 18:49:37,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:49:37,194 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:37,194 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:37,194 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]=== [2019-12-07 18:49:37,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:37,195 INFO L82 PathProgramCache]: Analyzing trace with hash -903844464, now seen corresponding path program 1 times [2019-12-07 18:49:37,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:37,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461374749] [2019-12-07 18:49:37,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:37,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461374749] [2019-12-07 18:49:37,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:37,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:49:37,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577683595] [2019-12-07 18:49:37,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:49:37,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:37,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:49:37,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:49:37,258 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 7 states. [2019-12-07 18:49:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:37,483 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2019-12-07 18:49:37,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:49:37,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-12-07 18:49:37,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:37,484 INFO L225 Difference]: With dead ends: 147 [2019-12-07 18:49:37,484 INFO L226 Difference]: Without dead ends: 147 [2019-12-07 18:49:37,484 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 [2019-12-07 18:49:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-12-07 18:49:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 124. [2019-12-07 18:49:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-12-07 18:49:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-12-07 18:49:37,489 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 16 [2019-12-07 18:49:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:37,489 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-12-07 18:49:37,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:49:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-12-07 18:49:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:49:37,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:37,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:37,490 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]=== [2019-12-07 18:49:37,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:37,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1280450289, now seen corresponding path program 1 times [2019-12-07 18:49:37,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:37,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145289493] [2019-12-07 18:49:37,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:37,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145289493] [2019-12-07 18:49:37,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:37,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:49:37,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80607937] [2019-12-07 18:49:37,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:49:37,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:37,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:49:37,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:49:37,540 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 7 states. [2019-12-07 18:49:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:37,842 INFO L93 Difference]: Finished difference Result 182 states and 214 transitions. [2019-12-07 18:49:37,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:49:37,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-12-07 18:49:37,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:37,843 INFO L225 Difference]: With dead ends: 182 [2019-12-07 18:49:37,843 INFO L226 Difference]: Without dead ends: 182 [2019-12-07 18:49:37,844 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:49:37,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-12-07 18:49:37,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 110. [2019-12-07 18:49:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-07 18:49:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2019-12-07 18:49:37,848 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 19 [2019-12-07 18:49:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:37,848 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2019-12-07 18:49:37,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:49:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2019-12-07 18:49:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:49:37,848 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:37,849 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:37,849 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]=== [2019-12-07 18:49:37,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:37,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1280450290, now seen corresponding path program 1 times [2019-12-07 18:49:37,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:37,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42789989] [2019-12-07 18:49:37,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:37,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42789989] [2019-12-07 18:49:37,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:37,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:49:37,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311041696] [2019-12-07 18:49:37,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:49:37,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:37,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:49:37,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:49:37,888 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 7 states. [2019-12-07 18:49:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:38,142 INFO L93 Difference]: Finished difference Result 158 states and 183 transitions. [2019-12-07 18:49:38,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:49:38,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-12-07 18:49:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:38,143 INFO L225 Difference]: With dead ends: 158 [2019-12-07 18:49:38,144 INFO L226 Difference]: Without dead ends: 158 [2019-12-07 18:49:38,144 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 [2019-12-07 18:49:38,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-12-07 18:49:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 109. [2019-12-07 18:49:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 18:49:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2019-12-07 18:49:38,148 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 19 [2019-12-07 18:49:38,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:38,148 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2019-12-07 18:49:38,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:49:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2019-12-07 18:49:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 18:49:38,149 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:38,149 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] [2019-12-07 18:49:38,149 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]=== [2019-12-07 18:49:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:38,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1881660023, now seen corresponding path program 1 times [2019-12-07 18:49:38,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:38,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246040442] [2019-12-07 18:49:38,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:49:38,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246040442] [2019-12-07 18:49:38,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:38,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:49:38,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188669646] [2019-12-07 18:49:38,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:49:38,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:38,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:49:38,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:49:38,183 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 5 states. [2019-12-07 18:49:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:38,327 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2019-12-07 18:49:38,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:49:38,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-12-07 18:49:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:38,328 INFO L225 Difference]: With dead ends: 130 [2019-12-07 18:49:38,328 INFO L226 Difference]: Without dead ends: 130 [2019-12-07 18:49:38,329 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 [2019-12-07 18:49:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-12-07 18:49:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 109. [2019-12-07 18:49:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 18:49:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2019-12-07 18:49:38,333 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 21 [2019-12-07 18:49:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:38,333 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2019-12-07 18:49:38,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:49:38,333 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2019-12-07 18:49:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:49:38,334 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:38,334 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] [2019-12-07 18:49:38,334 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]=== [2019-12-07 18:49:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1775325807, now seen corresponding path program 1 times [2019-12-07 18:49:38,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:38,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508003040] [2019-12-07 18:49:38,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:49:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:49:38,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:49:38,377 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:49:38,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:49:38 BoogieIcfgContainer [2019-12-07 18:49:38,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:49:38,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:49:38,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:49:38,402 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:49:38,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:49:35" (3/4) ... [2019-12-07 18:49:38,404 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:49:38,441 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3b2d1950-1dc1-4f5f-9071-f79496b3fd3c/bin/uautomizer/witness.graphml [2019-12-07 18:49:38,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:49:38,442 INFO L168 Benchmark]: Toolchain (without parser) took 3709.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 932.7 MB in the beginning and 1.0 GB in the end (delta: -93.9 MB). Peak memory consumption was 55.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:38,443 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:49:38,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 932.7 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:38,444 INFO L168 Benchmark]: Boogie Preprocessor took 41.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:38,444 INFO L168 Benchmark]: RCFGBuilder took 397.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:38,445 INFO L168 Benchmark]: TraceAbstraction took 2936.92 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -17.9 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:38,445 INFO L168 Benchmark]: Witness Printer took 39.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:38,447 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 932.7 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 397.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2936.92 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -17.9 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * Witness Printer took 39.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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: 2.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 1074 SDslu, 1263 SDs, 0 SdLazy, 2846 SolverSat, 134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s 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: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 391 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s 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...