./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3aee1e8d9b723b18f218b6c1185554e637930c5d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:11:14,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:11:14,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:11:14,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:11:14,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:11:14,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:11:14,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:11:14,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:11:14,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:11:14,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:11:14,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:11:14,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:11:14,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:11:14,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:11:14,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:11:14,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:11:14,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:11:14,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:11:14,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:11:14,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:11:14,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:11:14,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:11:14,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:11:14,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:11:14,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:11:14,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:11:14,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:11:14,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:11:14,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:11:14,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:11:14,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:11:14,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:11:14,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:11:14,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:11:14,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:11:14,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:11:14,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:11:14,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:11:14,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:11:14,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:11:14,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:11:14,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 18:11:14,060 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:11:14,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:11:14,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:11:14,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:11:14,061 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:11:14,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:11:14,061 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:11:14,062 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 18:11:14,063 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:11:14,063 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:11:14,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:11:14,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:11:14,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:11:14,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:11:14,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:11:14,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:11:14,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:11:14,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:11:14,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:11:14,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:11:14,064 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_976cccb2-ed0d-446b-a585-809055167619/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aee1e8d9b723b18f218b6c1185554e637930c5d [2019-12-07 18:11:14,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:11:14,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:11:14,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:11:14,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:11:14,182 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:11:14,182 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2019-12-07 18:11:14,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/data/b8fe64456/b2f309ee58014667a72aa8401c9b073d/FLAGfa12ef338 [2019-12-07 18:11:14,659 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:11:14,660 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2019-12-07 18:11:14,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/data/b8fe64456/b2f309ee58014667a72aa8401c9b073d/FLAGfa12ef338 [2019-12-07 18:11:15,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/data/b8fe64456/b2f309ee58014667a72aa8401c9b073d [2019-12-07 18:11:15,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:11:15,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 18:11:15,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:15,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:11:15,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:11:15,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a891328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15, skipping insertion in model container [2019-12-07 18:11:15,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:11:15,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:11:15,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:15,251 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:11:15,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:15,309 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:11:15,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15 WrapperNode [2019-12-07 18:11:15,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:15,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:11:15,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:11:15,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:11:15,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... [2019-12-07 18:11:15,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:11:15,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:11:15,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:11:15,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:11:15,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/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 18:11:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 18:11:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:11:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 18:11:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 18:11:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 18:11:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 18:11:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 18:11:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 18:11:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 18:11:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 18:11:15,395 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 18:11:15,396 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 18:11:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 18:11:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 18:11:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:11:15,726 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:11:15,726 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 18:11:15,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:15 BoogieIcfgContainer [2019-12-07 18:11:15,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:11:15,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:11:15,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:11:15,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:11:15,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:11:15" (1/3) ... [2019-12-07 18:11:15,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d1f52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:15, skipping insertion in model container [2019-12-07 18:11:15,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:15" (2/3) ... [2019-12-07 18:11:15,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d1f52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:15, skipping insertion in model container [2019-12-07 18:11:15,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:15" (3/3) ... [2019-12-07 18:11:15,732 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-2.i [2019-12-07 18:11:15,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:11:15,743 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2019-12-07 18:11:15,750 INFO L249 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2019-12-07 18:11:15,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:11:15,762 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 18:11:15,762 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:11:15,762 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:11:15,762 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:11:15,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:11:15,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:11:15,763 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:11:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-12-07 18:11:15,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:11:15,781 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:15,782 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:15,782 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:15,786 INFO L82 PathProgramCache]: Analyzing trace with hash 779799538, now seen corresponding path program 1 times [2019-12-07 18:11:15,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:15,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427995493] [2019-12-07 18:11:15,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:15,909 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 18:11:15,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427995493] [2019-12-07 18:11:15,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:15,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:11:15,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118803857] [2019-12-07 18:11:15,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:11:15,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:15,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:11:15,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:11:15,924 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 4 states. [2019-12-07 18:11:16,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:16,137 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2019-12-07 18:11:16,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:11:16,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 18:11:16,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:16,145 INFO L225 Difference]: With dead ends: 125 [2019-12-07 18:11:16,145 INFO L226 Difference]: Without dead ends: 121 [2019-12-07 18:11:16,146 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 18:11:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-12-07 18:11:16,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2019-12-07 18:11:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-12-07 18:11:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2019-12-07 18:11:16,176 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 7 [2019-12-07 18:11:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:16,177 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2019-12-07 18:11:16,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:11:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2019-12-07 18:11:16,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:11:16,177 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:16,177 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:16,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:16,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:16,178 INFO L82 PathProgramCache]: Analyzing trace with hash 779799539, now seen corresponding path program 1 times [2019-12-07 18:11:16,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:16,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944397986] [2019-12-07 18:11:16,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,217 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 18:11:16,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944397986] [2019-12-07 18:11:16,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:16,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:11:16,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348740632] [2019-12-07 18:11:16,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:11:16,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:16,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:11:16,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:11:16,220 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand 4 states. [2019-12-07 18:11:16,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:16,393 INFO L93 Difference]: Finished difference Result 135 states and 141 transitions. [2019-12-07 18:11:16,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:11:16,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 18:11:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:16,395 INFO L225 Difference]: With dead ends: 135 [2019-12-07 18:11:16,395 INFO L226 Difference]: Without dead ends: 135 [2019-12-07 18:11:16,396 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 18:11:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-12-07 18:11:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2019-12-07 18:11:16,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-07 18:11:16,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2019-12-07 18:11:16,407 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 7 [2019-12-07 18:11:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:16,407 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2019-12-07 18:11:16,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:11:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2019-12-07 18:11:16,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:11:16,408 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:16,408 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:16,409 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:16,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:16,409 INFO L82 PathProgramCache]: Analyzing trace with hash -786113028, now seen corresponding path program 1 times [2019-12-07 18:11:16,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:16,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625731274] [2019-12-07 18:11:16,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,475 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 18:11:16,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625731274] [2019-12-07 18:11:16,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:16,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:11:16,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764899900] [2019-12-07 18:11:16,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:11:16,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:16,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:11:16,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:11:16,478 INFO L87 Difference]: Start difference. First operand 122 states and 129 transitions. Second operand 5 states. [2019-12-07 18:11:16,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:16,660 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2019-12-07 18:11:16,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:11:16,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 18:11:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:16,662 INFO L225 Difference]: With dead ends: 129 [2019-12-07 18:11:16,662 INFO L226 Difference]: Without dead ends: 129 [2019-12-07 18:11:16,662 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 18:11:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-12-07 18:11:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 114. [2019-12-07 18:11:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-12-07 18:11:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2019-12-07 18:11:16,668 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 12 [2019-12-07 18:11:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:16,668 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2019-12-07 18:11:16,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:11:16,668 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2019-12-07 18:11:16,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:11:16,669 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:16,669 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:16,669 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:16,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:16,670 INFO L82 PathProgramCache]: Analyzing trace with hash -786113027, now seen corresponding path program 1 times [2019-12-07 18:11:16,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:16,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637642157] [2019-12-07 18:11:16,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:16,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637642157] [2019-12-07 18:11:16,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:16,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:11:16,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814022122] [2019-12-07 18:11:16,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:11:16,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:16,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:11:16,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:11:16,721 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 5 states. [2019-12-07 18:11:16,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:16,910 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2019-12-07 18:11:16,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:11:16,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 18:11:16,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:16,912 INFO L225 Difference]: With dead ends: 152 [2019-12-07 18:11:16,912 INFO L226 Difference]: Without dead ends: 152 [2019-12-07 18:11:16,912 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 18:11:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-12-07 18:11:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2019-12-07 18:11:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 18:11:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 135 transitions. [2019-12-07 18:11:16,918 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 135 transitions. Word has length 12 [2019-12-07 18:11:16,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:16,919 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 135 transitions. [2019-12-07 18:11:16,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:11:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 135 transitions. [2019-12-07 18:11:16,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:11:16,919 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:16,919 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:16,919 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:16,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:16,920 INFO L82 PathProgramCache]: Analyzing trace with hash 459604198, now seen corresponding path program 1 times [2019-12-07 18:11:16,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:16,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085203565] [2019-12-07 18:11:16,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:16,951 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 18:11:16,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085203565] [2019-12-07 18:11:16,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:16,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:11:16,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649654309] [2019-12-07 18:11:16,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:11:16,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:16,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:11:16,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:11:16,952 INFO L87 Difference]: Start difference. First operand 123 states and 135 transitions. Second operand 5 states. [2019-12-07 18:11:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:17,081 INFO L93 Difference]: Finished difference Result 137 states and 146 transitions. [2019-12-07 18:11:17,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:11:17,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 18:11:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:17,082 INFO L225 Difference]: With dead ends: 137 [2019-12-07 18:11:17,082 INFO L226 Difference]: Without dead ends: 137 [2019-12-07 18:11:17,082 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 18:11:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-12-07 18:11:17,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 121. [2019-12-07 18:11:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 18:11:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-12-07 18:11:17,088 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 14 [2019-12-07 18:11:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:17,088 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-12-07 18:11:17,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:11:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-12-07 18:11:17,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:11:17,088 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:17,088 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:17,089 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:17,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:17,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1363441086, now seen corresponding path program 1 times [2019-12-07 18:11:17,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:17,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074413924] [2019-12-07 18:11:17,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:17,138 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 18:11:17,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074413924] [2019-12-07 18:11:17,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:17,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:11:17,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681781949] [2019-12-07 18:11:17,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:11:17,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:17,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:11:17,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:11:17,139 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 7 states. [2019-12-07 18:11:17,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:17,408 INFO L93 Difference]: Finished difference Result 176 states and 190 transitions. [2019-12-07 18:11:17,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:11:17,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-07 18:11:17,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:17,409 INFO L225 Difference]: With dead ends: 176 [2019-12-07 18:11:17,409 INFO L226 Difference]: Without dead ends: 176 [2019-12-07 18:11:17,409 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 18:11:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-12-07 18:11:17,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 120. [2019-12-07 18:11:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 18:11:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2019-12-07 18:11:17,414 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 15 [2019-12-07 18:11:17,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:17,414 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2019-12-07 18:11:17,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:11:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2019-12-07 18:11:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:11:17,414 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:17,415 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:17,415 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:17,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1363441087, now seen corresponding path program 1 times [2019-12-07 18:11:17,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:17,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763204061] [2019-12-07 18:11:17,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:17,467 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 18:11:17,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763204061] [2019-12-07 18:11:17,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:17,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:11:17,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190433889] [2019-12-07 18:11:17,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:11:17,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:17,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:11:17,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:11:17,468 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand 7 states. [2019-12-07 18:11:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:17,792 INFO L93 Difference]: Finished difference Result 202 states and 220 transitions. [2019-12-07 18:11:17,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:11:17,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-07 18:11:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:17,794 INFO L225 Difference]: With dead ends: 202 [2019-12-07 18:11:17,794 INFO L226 Difference]: Without dead ends: 202 [2019-12-07 18:11:17,794 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 18:11:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-12-07 18:11:17,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 115. [2019-12-07 18:11:17,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 18:11:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2019-12-07 18:11:17,798 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 15 [2019-12-07 18:11:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:17,798 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2019-12-07 18:11:17,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:11:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2019-12-07 18:11:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:11:17,799 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:17,799 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:17,799 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:17,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:17,800 INFO L82 PathProgramCache]: Analyzing trace with hash -283093815, now seen corresponding path program 1 times [2019-12-07 18:11:17,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:17,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774008619] [2019-12-07 18:11:17,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:17,851 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 18:11:17,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774008619] [2019-12-07 18:11:17,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:17,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:11:17,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951455597] [2019-12-07 18:11:17,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:11:17,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:17,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:11:17,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:11:17,852 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand 7 states. [2019-12-07 18:11:18,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:18,038 INFO L93 Difference]: Finished difference Result 178 states and 194 transitions. [2019-12-07 18:11:18,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:11:18,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-12-07 18:11:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:18,040 INFO L225 Difference]: With dead ends: 178 [2019-12-07 18:11:18,040 INFO L226 Difference]: Without dead ends: 178 [2019-12-07 18:11:18,040 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:11:18,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-12-07 18:11:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 122. [2019-12-07 18:11:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-07 18:11:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2019-12-07 18:11:18,045 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 17 [2019-12-07 18:11:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:18,045 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2019-12-07 18:11:18,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:11:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2019-12-07 18:11:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 18:11:18,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:18,046 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, 1] [2019-12-07 18:11:18,047 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:18,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:18,047 INFO L82 PathProgramCache]: Analyzing trace with hash -132099760, now seen corresponding path program 1 times [2019-12-07 18:11:18,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:18,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127221096] [2019-12-07 18:11:18,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:18,121 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 18:11:18,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127221096] [2019-12-07 18:11:18,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:18,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:11:18,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81105992] [2019-12-07 18:11:18,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:11:18,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:18,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:11:18,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:11:18,123 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. Second operand 6 states. [2019-12-07 18:11:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:18,289 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2019-12-07 18:11:18,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:11:18,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2019-12-07 18:11:18,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:18,291 INFO L225 Difference]: With dead ends: 127 [2019-12-07 18:11:18,291 INFO L226 Difference]: Without dead ends: 127 [2019-12-07 18:11:18,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:11:18,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-12-07 18:11:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2019-12-07 18:11:18,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 18:11:18,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-12-07 18:11:18,295 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 23 [2019-12-07 18:11:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:18,296 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-12-07 18:11:18,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:11:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-12-07 18:11:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 18:11:18,296 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:18,297 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, 1] [2019-12-07 18:11:18,297 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr9REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_LEAK, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-12-07 18:11:18,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:18,297 INFO L82 PathProgramCache]: Analyzing trace with hash -131788878, now seen corresponding path program 1 times [2019-12-07 18:11:18,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:18,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12144540] [2019-12-07 18:11:18,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:18,340 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:18,340 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:11:18,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:11:18 BoogieIcfgContainer [2019-12-07 18:11:18,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:11:18,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:11:18,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:11:18,366 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:11:18,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:15" (3/4) ... [2019-12-07 18:11:18,369 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:11:18,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_976cccb2-ed0d-446b-a585-809055167619/bin/uautomizer/witness.graphml [2019-12-07 18:11:18,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:11:18,410 INFO L168 Benchmark]: Toolchain (without parser) took 3403.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -127.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:18,411 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:18,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:18,411 INFO L168 Benchmark]: Boogie Preprocessor took 41.15 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 18:11:18,412 INFO L168 Benchmark]: RCFGBuilder took 376.06 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:18,412 INFO L168 Benchmark]: TraceAbstraction took 2637.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -67.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:18,413 INFO L168 Benchmark]: Witness Printer took 42.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:18,415 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.15 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 376.06 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2637.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -67.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 42.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1038]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L995] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L996] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L997] list->colour = BLACK VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1027] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1028] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1028] COND FALSE !(!(BLACK == end->colour)) [L1030] COND TRUE ((void*)0) != end VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1032] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1032] COND FALSE !(RED == end->colour) [L1038] EXPR end->next VAL [end={-1:0}, end->next={0:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1038] COND TRUE !(end->next) [L1038] __VERIFIER_error() VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 124 locations, 55 error locations. Result: UNSAFE, OverallTime: 2.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 701 SDtfs, 1068 SDslu, 1030 SDs, 0 SdLazy, 2487 SolverSat, 110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 282 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 6561 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...