./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-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_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/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 1f270b702de634d3ad2ee5a400388c6410a4cf10 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 10:07:28,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:28,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:28,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:28,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:28,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:28,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:28,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:28,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:28,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:28,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:28,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:28,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:28,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:28,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:28,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:28,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:28,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:28,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:28,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:28,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:28,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:28,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:28,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:28,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:28,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:28,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:28,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:28,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:28,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:28,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:28,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:28,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:28,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:28,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:28,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:28,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:28,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:28,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:28,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:28,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:28,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 10:07:28,747 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:28,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:28,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:28,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:28,748 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:28,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:28,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:28,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:28,749 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:07:28,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:28,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:28,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:28,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:28,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:28,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:28,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:28,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:28,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:28,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:28,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:07:28,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:28,751 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_9632e9ca-4688-43b2-9a47-14624d58b9f5/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 -> 1f270b702de634d3ad2ee5a400388c6410a4cf10 [2019-12-07 10:07:28,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:28,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:28,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:28,859 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:28,859 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:28,860 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2019-12-07 10:07:28,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/data/b788ba14f/986d3b4a652440ba8633430be8e38415/FLAGa735237ca [2019-12-07 10:07:29,316 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:29,316 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2019-12-07 10:07:29,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/data/b788ba14f/986d3b4a652440ba8633430be8e38415/FLAGa735237ca [2019-12-07 10:07:29,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/data/b788ba14f/986d3b4a652440ba8633430be8e38415 [2019-12-07 10:07:29,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:29,689 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 10:07:29,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:29,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:29,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:29,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@189ca1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 10:07:29,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:29,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:29,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:29,976 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:30,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:30,042 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:30,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30 WrapperNode [2019-12-07 10:07:30,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:30,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:30,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:30,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:30,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:30,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:30,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:30,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:30,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/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 10:07:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 10:07:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 10:07:30,125 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 10:07:30,125 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 10:07:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 10:07:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 10:07:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 10:07:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 10:07:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 10:07:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 10:07:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 10:07:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:07:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 10:07:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:07:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:07:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 10:07:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:30,492 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:30,492 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 10:07:30,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:30 BoogieIcfgContainer [2019-12-07 10:07:30,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:30,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:30,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:30,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:30,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:29" (1/3) ... [2019-12-07 10:07:30,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f35e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:30, skipping insertion in model container [2019-12-07 10:07:30,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (2/3) ... [2019-12-07 10:07:30,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f35e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:30, skipping insertion in model container [2019-12-07 10:07:30,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:30" (3/3) ... [2019-12-07 10:07:30,498 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2019-12-07 10:07:30,504 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:30,509 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 65 error locations. [2019-12-07 10:07:30,516 INFO L249 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2019-12-07 10:07:30,528 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:30,528 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 10:07:30,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:30,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:30,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:30,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:30,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:30,529 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-12-07 10:07:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:07:30,547 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:30,548 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:30,548 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:30,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1311984285, now seen corresponding path program 1 times [2019-12-07 10:07:30,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:30,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700489029] [2019-12-07 10:07:30,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:30,675 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 10:07:30,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700489029] [2019-12-07 10:07:30,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:30,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:30,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436872926] [2019-12-07 10:07:30,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:30,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:30,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:30,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:30,696 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 4 states. [2019-12-07 10:07:30,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:30,928 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2019-12-07 10:07:30,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:07:30,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:07:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:30,937 INFO L225 Difference]: With dead ends: 141 [2019-12-07 10:07:30,938 INFO L226 Difference]: Without dead ends: 137 [2019-12-07 10:07:30,939 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 10:07:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-12-07 10:07:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2019-12-07 10:07:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-12-07 10:07:30,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 140 transitions. [2019-12-07 10:07:30,972 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 140 transitions. Word has length 7 [2019-12-07 10:07:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:30,973 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 140 transitions. [2019-12-07 10:07:30,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:30,973 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 140 transitions. [2019-12-07 10:07:30,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:07:30,973 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:30,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:30,973 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:30,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:30,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1311984284, now seen corresponding path program 1 times [2019-12-07 10:07:30,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:30,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781746821] [2019-12-07 10:07:30,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,022 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 10:07:31,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781746821] [2019-12-07 10:07:31,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:31,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:31,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113116608] [2019-12-07 10:07:31,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:31,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:31,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:31,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:31,024 INFO L87 Difference]: Start difference. First operand 133 states and 140 transitions. Second operand 4 states. [2019-12-07 10:07:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:31,198 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2019-12-07 10:07:31,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:31,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:07:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:31,199 INFO L225 Difference]: With dead ends: 150 [2019-12-07 10:07:31,199 INFO L226 Difference]: Without dead ends: 150 [2019-12-07 10:07:31,200 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 10:07:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-12-07 10:07:31,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 137. [2019-12-07 10:07:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-12-07 10:07:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2019-12-07 10:07:31,208 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 7 [2019-12-07 10:07:31,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:31,208 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2019-12-07 10:07:31,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2019-12-07 10:07:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 10:07:31,209 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:31,209 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:31,210 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:31,210 INFO L82 PathProgramCache]: Analyzing trace with hash 999637548, now seen corresponding path program 1 times [2019-12-07 10:07:31,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:31,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282079925] [2019-12-07 10:07:31,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,269 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 10:07:31,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282079925] [2019-12-07 10:07:31,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:31,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:07:31,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387133856] [2019-12-07 10:07:31,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:07:31,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:31,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:07:31,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:31,271 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand 5 states. [2019-12-07 10:07:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:31,460 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2019-12-07 10:07:31,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:07:31,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-07 10:07:31,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:31,462 INFO L225 Difference]: With dead ends: 142 [2019-12-07 10:07:31,462 INFO L226 Difference]: Without dead ends: 142 [2019-12-07 10:07:31,462 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 10:07:31,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-07 10:07:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 127. [2019-12-07 10:07:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-12-07 10:07:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 137 transitions. [2019-12-07 10:07:31,469 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 137 transitions. Word has length 13 [2019-12-07 10:07:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:31,469 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 137 transitions. [2019-12-07 10:07:31,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:07:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 137 transitions. [2019-12-07 10:07:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 10:07:31,470 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:31,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:31,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:31,471 INFO L82 PathProgramCache]: Analyzing trace with hash 999637549, now seen corresponding path program 1 times [2019-12-07 10:07:31,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:31,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991109714] [2019-12-07 10:07:31,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,524 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 10:07:31,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991109714] [2019-12-07 10:07:31,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:31,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:07:31,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763715686] [2019-12-07 10:07:31,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:07:31,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:31,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:07:31,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:31,526 INFO L87 Difference]: Start difference. First operand 127 states and 137 transitions. Second operand 5 states. [2019-12-07 10:07:31,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:31,737 INFO L93 Difference]: Finished difference Result 170 states and 181 transitions. [2019-12-07 10:07:31,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:07:31,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-07 10:07:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:31,738 INFO L225 Difference]: With dead ends: 170 [2019-12-07 10:07:31,738 INFO L226 Difference]: Without dead ends: 170 [2019-12-07 10:07:31,739 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 10:07:31,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-12-07 10:07:31,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 139. [2019-12-07 10:07:31,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-12-07 10:07:31,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2019-12-07 10:07:31,746 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 13 [2019-12-07 10:07:31,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:31,746 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2019-12-07 10:07:31,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:07:31,746 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2019-12-07 10:07:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 10:07:31,747 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:31,747 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:31,748 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:31,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:31,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1420996668, now seen corresponding path program 1 times [2019-12-07 10:07:31,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:31,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744327958] [2019-12-07 10:07:31,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,786 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 10:07:31,786 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744327958] [2019-12-07 10:07:31,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:31,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:07:31,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366650234] [2019-12-07 10:07:31,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:07:31,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:31,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:07:31,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:31,787 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand 5 states. [2019-12-07 10:07:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:31,928 INFO L93 Difference]: Finished difference Result 155 states and 164 transitions. [2019-12-07 10:07:31,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:07:31,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-12-07 10:07:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:31,929 INFO L225 Difference]: With dead ends: 155 [2019-12-07 10:07:31,929 INFO L226 Difference]: Without dead ends: 155 [2019-12-07 10:07:31,929 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 10:07:31,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-12-07 10:07:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 137. [2019-12-07 10:07:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-12-07 10:07:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2019-12-07 10:07:31,934 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 15 [2019-12-07 10:07:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:31,934 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2019-12-07 10:07:31,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:07:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2019-12-07 10:07:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 10:07:31,935 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:31,935 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:31,935 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:31,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:31,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1420990801, now seen corresponding path program 1 times [2019-12-07 10:07:31,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:31,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511688342] [2019-12-07 10:07:31,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,972 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 10:07:31,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511688342] [2019-12-07 10:07:31,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:31,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:07:31,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202499740] [2019-12-07 10:07:31,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:07:31,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:31,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:07:31,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:31,973 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand 6 states. [2019-12-07 10:07:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:32,212 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2019-12-07 10:07:32,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:07:32,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 10:07:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:32,214 INFO L225 Difference]: With dead ends: 190 [2019-12-07 10:07:32,214 INFO L226 Difference]: Without dead ends: 190 [2019-12-07 10:07:32,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:07:32,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-12-07 10:07:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 136. [2019-12-07 10:07:32,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-07 10:07:32,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2019-12-07 10:07:32,219 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 15 [2019-12-07 10:07:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:32,219 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2019-12-07 10:07:32,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:07:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2019-12-07 10:07:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 10:07:32,220 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:32,220 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:32,220 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:32,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:32,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1420990800, now seen corresponding path program 1 times [2019-12-07 10:07:32,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:32,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511908089] [2019-12-07 10:07:32,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,268 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 10:07:32,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511908089] [2019-12-07 10:07:32,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:32,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:07:32,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161734989] [2019-12-07 10:07:32,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:07:32,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:32,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:07:32,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:32,269 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand 6 states. [2019-12-07 10:07:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:32,605 INFO L93 Difference]: Finished difference Result 216 states and 233 transitions. [2019-12-07 10:07:32,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:07:32,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 10:07:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:32,606 INFO L225 Difference]: With dead ends: 216 [2019-12-07 10:07:32,606 INFO L226 Difference]: Without dead ends: 216 [2019-12-07 10:07:32,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:07:32,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-12-07 10:07:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 135. [2019-12-07 10:07:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-12-07 10:07:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2019-12-07 10:07:32,612 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 15 [2019-12-07 10:07:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:32,612 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2019-12-07 10:07:32,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:07:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2019-12-07 10:07:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 10:07:32,613 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:32,613 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:32,614 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:32,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:32,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1710066916, now seen corresponding path program 1 times [2019-12-07 10:07:32,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:32,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769710036] [2019-12-07 10:07:32,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,678 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 10:07:32,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769710036] [2019-12-07 10:07:32,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:32,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 10:07:32,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303643051] [2019-12-07 10:07:32,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 10:07:32,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:32,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 10:07:32,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:07:32,680 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand 7 states. [2019-12-07 10:07:32,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:32,898 INFO L93 Difference]: Finished difference Result 195 states and 210 transitions. [2019-12-07 10:07:32,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 10:07:32,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-07 10:07:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:32,899 INFO L225 Difference]: With dead ends: 195 [2019-12-07 10:07:32,899 INFO L226 Difference]: Without dead ends: 195 [2019-12-07 10:07:32,900 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 10:07:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-12-07 10:07:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 140. [2019-12-07 10:07:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 10:07:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2019-12-07 10:07:32,903 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 18 [2019-12-07 10:07:32,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:32,903 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2019-12-07 10:07:32,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 10:07:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2019-12-07 10:07:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 10:07:32,904 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:32,904 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:32,904 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:32,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:32,904 INFO L82 PathProgramCache]: Analyzing trace with hash -473076751, now seen corresponding path program 1 times [2019-12-07 10:07:32,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:32,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748398759] [2019-12-07 10:07:32,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,980 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 10:07:32,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748398759] [2019-12-07 10:07:32,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:32,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 10:07:32,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732961364] [2019-12-07 10:07:32,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 10:07:32,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:32,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 10:07:32,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-12-07 10:07:32,982 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 10 states. [2019-12-07 10:07:33,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:33,414 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2019-12-07 10:07:33,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 10:07:33,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-12-07 10:07:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:33,415 INFO L225 Difference]: With dead ends: 140 [2019-12-07 10:07:33,415 INFO L226 Difference]: Without dead ends: 140 [2019-12-07 10:07:33,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-12-07 10:07:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-12-07 10:07:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2019-12-07 10:07:33,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-12-07 10:07:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2019-12-07 10:07:33,419 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 19 [2019-12-07 10:07:33,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:33,419 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2019-12-07 10:07:33,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 10:07:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2019-12-07 10:07:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 10:07:33,420 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:33,420 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:33,420 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:33,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:33,420 INFO L82 PathProgramCache]: Analyzing trace with hash -473076750, now seen corresponding path program 1 times [2019-12-07 10:07:33,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:33,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749200704] [2019-12-07 10:07:33,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:33,530 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 10:07:33,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749200704] [2019-12-07 10:07:33,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:33,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-07 10:07:33,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653290517] [2019-12-07 10:07:33,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 10:07:33,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:33,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 10:07:33,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-12-07 10:07:33,531 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand 11 states. [2019-12-07 10:07:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:34,145 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2019-12-07 10:07:34,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 10:07:34,146 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-12-07 10:07:34,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:34,147 INFO L225 Difference]: With dead ends: 143 [2019-12-07 10:07:34,147 INFO L226 Difference]: Without dead ends: 143 [2019-12-07 10:07:34,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-12-07 10:07:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-12-07 10:07:34,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 135. [2019-12-07 10:07:34,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-12-07 10:07:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2019-12-07 10:07:34,150 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 19 [2019-12-07 10:07:34,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:34,150 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2019-12-07 10:07:34,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 10:07:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2019-12-07 10:07:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:07:34,151 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:34,151 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, 1] [2019-12-07 10:07:34,151 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:34,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:34,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1696797635, now seen corresponding path program 1 times [2019-12-07 10:07:34,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:34,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486246742] [2019-12-07 10:07:34,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:34,218 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 10:07:34,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486246742] [2019-12-07 10:07:34,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:34,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 10:07:34,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261917343] [2019-12-07 10:07:34,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:07:34,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:07:34,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:34,220 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand 6 states. [2019-12-07 10:07:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:34,406 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2019-12-07 10:07:34,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:07:34,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-12-07 10:07:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:34,407 INFO L225 Difference]: With dead ends: 140 [2019-12-07 10:07:34,407 INFO L226 Difference]: Without dead ends: 140 [2019-12-07 10:07:34,407 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 10:07:34,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-12-07 10:07:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2019-12-07 10:07:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-12-07 10:07:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2019-12-07 10:07:34,411 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 24 [2019-12-07 10:07:34,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:34,411 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2019-12-07 10:07:34,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:07:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2019-12-07 10:07:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:07:34,412 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:34,412 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, 1] [2019-12-07 10:07:34,412 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 10:07:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:34,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1697108517, now seen corresponding path program 1 times [2019-12-07 10:07:34,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:34,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029041551] [2019-12-07 10:07:34,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:34,447 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:34,447 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:07:34,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:34 BoogieIcfgContainer [2019-12-07 10:07:34,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:34,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:34,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:34,467 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:34,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:30" (3/4) ... [2019-12-07 10:07:34,469 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:07:34,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9632e9ca-4688-43b2-9a47-14624d58b9f5/bin/uautomizer/witness.graphml [2019-12-07 10:07:34,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:34,501 INFO L168 Benchmark]: Toolchain (without parser) took 4812.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -199.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:34,501 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:34,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -140.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:34,502 INFO L168 Benchmark]: Boogie Preprocessor took 43.18 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 10:07:34,503 INFO L168 Benchmark]: RCFGBuilder took 406.75 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: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:34,503 INFO L168 Benchmark]: TraceAbstraction took 3972.76 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -138.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:34,504 INFO L168 Benchmark]: Witness Printer took 33.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:34,506 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -140.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.18 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 406.75 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: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3972.76 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -138.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 33.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L994] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L995] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L996] list->prev = ((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()) [L1025] end = ((void*)0) [L1026] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1029] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1030] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1030] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE ((void*)0) != end VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1034] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR end->next VAL [end={-1:0}, end->next={0:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1040] COND TRUE !(end->next) [L1040] __VERIFIER_error() VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 141 locations, 65 error locations. Result: UNSAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 891 SDtfs, 1468 SDslu, 1462 SDs, 0 SdLazy, 3822 SolverSat, 156 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred 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, 11 MinimizatonAttempts, 286 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 12068 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...