./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84f62959dc20df3dcecaea8b03619fc02cb1358b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:07:45,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:07:45,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:07:45,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:07:45,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:07:45,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:07:45,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:07:45,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:07:45,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:07:45,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:07:45,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:07:45,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:07:45,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:07:45,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:07:45,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:07:45,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:07:45,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:07:45,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:07:45,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:07:45,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:07:45,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:07:45,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:07:45,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:07:45,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:07:45,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:07:45,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:07:45,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:07:45,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:07:45,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:07:45,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:07:45,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:07:45,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:07:45,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:07:45,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:07:45,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:07:45,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:07:45,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:07:45,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:07:45,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:07:45,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:07:45,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:07:45,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:07:45,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:07:45,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:07:45,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:07:45,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:07:45,929 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:07:45,930 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:07:45,930 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:07:45,930 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:07:45,931 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:07:45,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:07:45,933 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:07:45,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:07:45,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:07:45,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:07:45,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:07:45,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:07:45,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:07:45,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:07:45,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:07:45,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:07:45,936 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:07:45,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:07:45,936 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:07:45,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:07:45,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:07:45,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:07:45,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:07:45,938 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:07:45,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:07:45,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:07:45,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:07:45,941 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:07:45,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:07:45,944 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-11-28 03:07:46,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:07:46,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:07:46,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:07:46,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:07:46,320 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:07:46,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-28 03:07:46,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/data/483a3da2d/9b7d2cde107640bc8700cc5dee5697bb/FLAG18c02c049 [2020-11-28 03:07:47,228 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:07:47,229 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-28 03:07:47,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/data/483a3da2d/9b7d2cde107640bc8700cc5dee5697bb/FLAG18c02c049 [2020-11-28 03:07:47,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/data/483a3da2d/9b7d2cde107640bc8700cc5dee5697bb [2020-11-28 03:07:47,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:07:47,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:07:47,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:47,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:07:47,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:07:47,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:47" (1/1) ... [2020-11-28 03:07:47,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302cb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:47, skipping insertion in model container [2020-11-28 03:07:47,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:47" (1/1) ... [2020-11-28 03:07:47,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:07:47,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:07:48,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:48,222 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:07:48,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:48,430 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:07:48,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48 WrapperNode [2020-11-28 03:07:48,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:48,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:07:48,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:07:48,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:07:48,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:07:48,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:07:48,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:07:48,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:07:48,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2020-11-28 03:07:48,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:07:48,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:07:48,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:07:48,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:07:48,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57770c06-95c6-4e58-8717-8ae285efb7af/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:07:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:07:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:07:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:07:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:07:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:07:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 03:07:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:07:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:07:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:07:50,079 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:07:50,081 INFO L298 CfgBuilder]: Removed 92 assume(true) statements. [2020-11-28 03:07:50,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:50 BoogieIcfgContainer [2020-11-28 03:07:50,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:07:50,087 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:07:50,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:07:50,092 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:07:50,093 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:07:50,094 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:07:47" (1/3) ... [2020-11-28 03:07:50,095 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a628de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:07:50, skipping insertion in model container [2020-11-28 03:07:50,095 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:07:50,095 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (2/3) ... [2020-11-28 03:07:50,096 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a628de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:07:50, skipping insertion in model container [2020-11-28 03:07:50,096 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:07:50,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:50" (3/3) ... [2020-11-28 03:07:50,098 INFO L373 chiAutomizerObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-11-28 03:07:50,170 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:07:50,170 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:07:50,171 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:07:50,171 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:07:50,171 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:07:50,171 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:07:50,172 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:07:50,172 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:07:50,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states. [2020-11-28 03:07:50,241 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 28 [2020-11-28 03:07:50,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:07:50,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:07:50,250 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:50,250 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:07:50,250 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:07:50,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states. [2020-11-28 03:07:50,259 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 28 [2020-11-28 03:07:50,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:07:50,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:07:50,263 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:50,265 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:07:50,276 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string2.base, #t~string2.offset, 1);call write~init~int(0, #t~string2.base, 1 + #t~string2.offset, 1);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(12);call ~#mutexes~0.base, ~#mutexes~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, ~#mutexes~0.offset, 4);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, 4 + ~#mutexes~0.offset, 4); 10#L-1true havoc main_#res;havoc foo_#t~ret32.base, foo_#t~ret32.offset, foo_#t~ret33.base, foo_#t~ret33.offset, foo_~m1~0.base, foo_~m1~0.offset, foo_~m2~0.base, foo_~m2~0.offset; 44#L666true ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 79#L565true assume !(0 == assume_abort_if_not_~cond); 38#L564true ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 30#L578true foo_#t~ret32.base, foo_#t~ret32.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m1~0.base, foo_~m1~0.offset := foo_#t~ret32.base, foo_#t~ret32.offset;havoc foo_#t~ret32.base, foo_#t~ret32.offset;ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 56#L565-2true assume !(0 == assume_abort_if_not_~cond); 40#L564-1true ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 32#L578-1true foo_#t~ret33.base, foo_#t~ret33.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m2~0.base, foo_~m2~0.offset := foo_#t~ret33.base, foo_#t~ret33.offset;havoc foo_#t~ret33.base, foo_#t~ret33.offset;mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 31#L655-3true [2020-11-28 03:07:50,277 INFO L796 eck$LassoCheckResult]: Loop: 31#L655-3true assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 65#L656true assume !(ldv_is_in_set_#t~mem27.base == ldv_is_in_set_~e.base && ldv_is_in_set_#t~mem27.offset == ldv_is_in_set_~e.offset);havoc ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset; 29#L655-2true call ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, 4 + ldv_is_in_set_~m~1.offset, 4);ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset := ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;havoc ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset - 4; 31#L655-3true [2020-11-28 03:07:50,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:50,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1482586390, now seen corresponding path program 1 times [2020-11-28 03:07:50,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:50,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222804163] [2020-11-28 03:07:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:50,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:50,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:50,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash 59743, now seen corresponding path program 1 times [2020-11-28 03:07:50,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:50,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412730621] [2020-11-28 03:07:50,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:50,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:50,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:50,714 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:50,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1712557526, now seen corresponding path program 1 times [2020-11-28 03:07:50,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:50,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632956508] [2020-11-28 03:07:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:50,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:50,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632956508] [2020-11-28 03:07:50,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:50,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:07:50,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972227047] [2020-11-28 03:07:51,304 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-28 03:07:51,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:51,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:07:51,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:07:51,434 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-11-28 03:07:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:51,894 INFO L93 Difference]: Finished difference Result 144 states and 164 transitions. [2020-11-28 03:07:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:51,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 164 transitions. [2020-11-28 03:07:51,907 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 38 [2020-11-28 03:07:51,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 110 states and 130 transitions. [2020-11-28 03:07:51,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2020-11-28 03:07:51,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2020-11-28 03:07:51,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 130 transitions. [2020-11-28 03:07:51,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:07:51,929 INFO L691 BuchiCegarLoop]: Abstraction has 110 states and 130 transitions. [2020-11-28 03:07:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 130 transitions. [2020-11-28 03:07:51,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-11-28 03:07:51,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-28 03:07:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2020-11-28 03:07:51,963 INFO L714 BuchiCegarLoop]: Abstraction has 87 states and 103 transitions. [2020-11-28 03:07:51,964 INFO L594 BuchiCegarLoop]: Abstraction has 87 states and 103 transitions. [2020-11-28 03:07:51,964 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:07:51,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 103 transitions. [2020-11-28 03:07:51,967 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 25 [2020-11-28 03:07:51,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:07:51,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:07:51,969 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:51,969 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:07:51,970 INFO L794 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string2.base, #t~string2.offset, 1);call write~init~int(0, #t~string2.base, 1 + #t~string2.offset, 1);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(12);call ~#mutexes~0.base, ~#mutexes~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, ~#mutexes~0.offset, 4);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, 4 + ~#mutexes~0.offset, 4); 256#L-1 havoc main_#res;havoc foo_#t~ret32.base, foo_#t~ret32.offset, foo_#t~ret33.base, foo_#t~ret33.offset, foo_~m1~0.base, foo_~m1~0.offset, foo_~m2~0.base, foo_~m2~0.offset; 257#L666 ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 300#L565 assume !(0 == assume_abort_if_not_~cond); 295#L564 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 284#L578 foo_#t~ret32.base, foo_#t~ret32.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m1~0.base, foo_~m1~0.offset := foo_#t~ret32.base, foo_#t~ret32.offset;havoc foo_#t~ret32.base, foo_#t~ret32.offset;ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 285#L565-2 assume !(0 == assume_abort_if_not_~cond); 297#L564-1 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 288#L578-1 foo_#t~ret33.base, foo_#t~ret33.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m2~0.base, foo_~m2~0.offset := foo_#t~ret33.base, foo_#t~ret33.offset;havoc foo_#t~ret33.base, foo_#t~ret33.offset;mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 286#L655-3 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 287#L655-4 ldv_is_in_set_#res := 0; 291#L660 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 260#L669 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 261#L669-2 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 262#L655-8 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 263#L655-9 ldv_is_in_set_#res := 0; 271#L660-1 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 267#L636 assume 0 == ldv_set_add_#t~ret19;havoc ldv_set_add_#t~ret19;havoc ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset;ldv_successful_malloc_#in~size := 12;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 268#L565-4 assume !(0 == assume_abort_if_not_~cond); 298#L564-2 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 292#L578-2 ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset := ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset;havoc ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset;call write~$Pointer$(ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, 4);ldv_list_add_#in~new.base, ldv_list_add_#in~new.offset, ldv_list_add_#in~head.base, ldv_list_add_#in~head.offset := ldv_set_add_~le~0.base, 4 + ldv_set_add_~le~0.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset, ldv_list_add_~new.base, ldv_list_add_~new.offset, ldv_list_add_~head.base, ldv_list_add_~head.offset;ldv_list_add_~new.base, ldv_list_add_~new.offset := ldv_list_add_#in~new.base, ldv_list_add_#in~new.offset;ldv_list_add_~head.base, ldv_list_add_~head.offset := ldv_list_add_#in~head.base, ldv_list_add_#in~head.offset;call ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset := read~$Pointer$(ldv_list_add_~head.base, ldv_list_add_~head.offset, 4);__ldv_list_add_#in~new.base, __ldv_list_add_#in~new.offset, __ldv_list_add_#in~prev.base, __ldv_list_add_#in~prev.offset, __ldv_list_add_#in~next.base, __ldv_list_add_#in~next.offset := ldv_list_add_~new.base, ldv_list_add_~new.offset, ldv_list_add_~head.base, ldv_list_add_~head.offset, ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset;havoc __ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, __ldv_list_add_~next.base, __ldv_list_add_~next.offset;__ldv_list_add_~new.base, __ldv_list_add_~new.offset := __ldv_list_add_#in~new.base, __ldv_list_add_#in~new.offset;__ldv_list_add_~prev.base, __ldv_list_add_~prev.offset := __ldv_list_add_#in~prev.base, __ldv_list_add_#in~prev.offset;__ldv_list_add_~next.base, __ldv_list_add_~next.offset := __ldv_list_add_#in~next.base, __ldv_list_add_#in~next.offset;call write~$Pointer$(__ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~next.base, 4 + __ldv_list_add_~next.offset, 4);call write~$Pointer$(__ldv_list_add_~next.base, __ldv_list_add_~next.offset, __ldv_list_add_~new.base, __ldv_list_add_~new.offset, 4);call write~$Pointer$(__ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, __ldv_list_add_~new.base, 4 + __ldv_list_add_~new.offset, 4);call write~$Pointer$(__ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, 4); 276#L592 havoc ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset; 277#L635 mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 247#L655-13 [2020-11-28 03:07:51,971 INFO L796 eck$LassoCheckResult]: Loop: 247#L655-13 assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 301#L656-2 assume !(ldv_is_in_set_#t~mem27.base == ldv_is_in_set_~e.base && ldv_is_in_set_#t~mem27.offset == ldv_is_in_set_~e.offset);havoc ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset; 246#L655-12 call ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, 4 + ldv_is_in_set_~m~1.offset, 4);ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset := ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;havoc ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset - 4; 247#L655-13 [2020-11-28 03:07:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:51,972 INFO L82 PathProgramCache]: Analyzing trace with hash -896263496, now seen corresponding path program 1 times [2020-11-28 03:07:51,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:51,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753749892] [2020-11-28 03:07:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:52,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:52,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:52,230 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:52,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:52,231 INFO L82 PathProgramCache]: Analyzing trace with hash 135211, now seen corresponding path program 1 times [2020-11-28 03:07:52,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:52,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284804688] [2020-11-28 03:07:52,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:52,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:52,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:52,256 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:52,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1225975316, now seen corresponding path program 1 times [2020-11-28 03:07:52,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:52,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086980532] [2020-11-28 03:07:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:52,707 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2020-11-28 03:07:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:53,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086980532] [2020-11-28 03:07:53,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:53,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:07:53,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578097024] [2020-11-28 03:07:53,200 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-28 03:07:53,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:53,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:07:53,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:07:53,245 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. cyclomatic complexity: 23 Second operand 10 states. [2020-11-28 03:07:53,683 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-11-28 03:07:54,341 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-11-28 03:07:54,492 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-11-28 03:07:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:54,971 INFO L93 Difference]: Finished difference Result 113 states and 132 transitions. [2020-11-28 03:07:54,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:07:54,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 132 transitions. [2020-11-28 03:07:54,975 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 28 [2020-11-28 03:07:54,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 113 states and 132 transitions. [2020-11-28 03:07:54,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2020-11-28 03:07:54,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 113 [2020-11-28 03:07:54,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 132 transitions. [2020-11-28 03:07:54,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:07:54,980 INFO L691 BuchiCegarLoop]: Abstraction has 113 states and 132 transitions. [2020-11-28 03:07:54,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 132 transitions. [2020-11-28 03:07:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 91. [2020-11-28 03:07:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-28 03:07:54,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 108 transitions. [2020-11-28 03:07:54,988 INFO L714 BuchiCegarLoop]: Abstraction has 91 states and 108 transitions. [2020-11-28 03:07:54,988 INFO L594 BuchiCegarLoop]: Abstraction has 91 states and 108 transitions. [2020-11-28 03:07:54,989 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:07:54,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 108 transitions. [2020-11-28 03:07:54,990 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 22 [2020-11-28 03:07:54,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:07:54,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:07:54,992 INFO L852 BuchiCegarLoop]: Counterexample stem 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:54,992 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:07:54,993 INFO L794 eck$LassoCheckResult]: Stem: 529#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string2.base, #t~string2.offset, 1);call write~init~int(0, #t~string2.base, 1 + #t~string2.offset, 1);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(12);call ~#mutexes~0.base, ~#mutexes~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, ~#mutexes~0.offset, 4);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, 4 + ~#mutexes~0.offset, 4); 488#L-1 havoc main_#res;havoc foo_#t~ret32.base, foo_#t~ret32.offset, foo_#t~ret33.base, foo_#t~ret33.offset, foo_~m1~0.base, foo_~m1~0.offset, foo_~m2~0.base, foo_~m2~0.offset; 489#L666 ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 533#L565 assume !(0 == assume_abort_if_not_~cond); 528#L564 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 517#L578 foo_#t~ret32.base, foo_#t~ret32.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m1~0.base, foo_~m1~0.offset := foo_#t~ret32.base, foo_#t~ret32.offset;havoc foo_#t~ret32.base, foo_#t~ret32.offset;ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 518#L565-2 assume !(0 == assume_abort_if_not_~cond); 530#L564-1 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 521#L578-1 foo_#t~ret33.base, foo_#t~ret33.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m2~0.base, foo_~m2~0.offset := foo_#t~ret33.base, foo_#t~ret33.offset;havoc foo_#t~ret33.base, foo_#t~ret33.offset;mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 519#L655-3 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 520#L655-4 ldv_is_in_set_#res := 0; 524#L660 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 492#L669 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 493#L669-2 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 494#L655-8 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 495#L655-9 ldv_is_in_set_#res := 0; 503#L660-1 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 499#L636 assume 0 == ldv_set_add_#t~ret19;havoc ldv_set_add_#t~ret19;havoc ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset;ldv_successful_malloc_#in~size := 12;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 500#L565-4 assume !(0 == assume_abort_if_not_~cond); 531#L564-2 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 525#L578-2 ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset := ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset;havoc ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset;call write~$Pointer$(ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, 4);ldv_list_add_#in~new.base, ldv_list_add_#in~new.offset, ldv_list_add_#in~head.base, ldv_list_add_#in~head.offset := ldv_set_add_~le~0.base, 4 + ldv_set_add_~le~0.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset, ldv_list_add_~new.base, ldv_list_add_~new.offset, ldv_list_add_~head.base, ldv_list_add_~head.offset;ldv_list_add_~new.base, ldv_list_add_~new.offset := ldv_list_add_#in~new.base, ldv_list_add_#in~new.offset;ldv_list_add_~head.base, ldv_list_add_~head.offset := ldv_list_add_#in~head.base, ldv_list_add_#in~head.offset;call ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset := read~$Pointer$(ldv_list_add_~head.base, ldv_list_add_~head.offset, 4);__ldv_list_add_#in~new.base, __ldv_list_add_#in~new.offset, __ldv_list_add_#in~prev.base, __ldv_list_add_#in~prev.offset, __ldv_list_add_#in~next.base, __ldv_list_add_#in~next.offset := ldv_list_add_~new.base, ldv_list_add_~new.offset, ldv_list_add_~head.base, ldv_list_add_~head.offset, ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset;havoc __ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, __ldv_list_add_~next.base, __ldv_list_add_~next.offset;__ldv_list_add_~new.base, __ldv_list_add_~new.offset := __ldv_list_add_#in~new.base, __ldv_list_add_#in~new.offset;__ldv_list_add_~prev.base, __ldv_list_add_~prev.offset := __ldv_list_add_#in~prev.base, __ldv_list_add_#in~prev.offset;__ldv_list_add_~next.base, __ldv_list_add_~next.offset := __ldv_list_add_#in~next.base, __ldv_list_add_#in~next.offset;call write~$Pointer$(__ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~next.base, 4 + __ldv_list_add_~next.offset, 4);call write~$Pointer$(__ldv_list_add_~next.base, __ldv_list_add_~next.offset, __ldv_list_add_~new.base, __ldv_list_add_~new.offset, 4);call write~$Pointer$(__ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, __ldv_list_add_~new.base, 4 + __ldv_list_add_~new.offset, 4);call write~$Pointer$(__ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, 4); 509#L592 havoc ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset; 510#L635 mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 557#L655-13 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 558#L655-14 ldv_is_in_set_#res := 0; 535#L660-2 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 561#L669-3 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 560#L669-5 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 559#L655-18 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 555#L655-19 ldv_is_in_set_#res := 0; 537#L660-3 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 506#L636-1 assume !(0 == ldv_set_add_#t~ret19);havoc ldv_set_add_#t~ret19; 507#L635-1 mutex_unlock_#in~m.base, mutex_unlock_#in~m.offset := foo_~m2~0.base, foo_~m2~0.offset;havoc mutex_unlock_#t~ret30, mutex_unlock_~m.base, mutex_unlock_~m.offset;mutex_unlock_~m.base, mutex_unlock_~m.offset := mutex_unlock_#in~m.base, mutex_unlock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_unlock_~m.base, mutex_unlock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 547#L655-23 [2020-11-28 03:07:54,994 INFO L796 eck$LassoCheckResult]: Loop: 547#L655-23 assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 538#L656-4 assume !(ldv_is_in_set_#t~mem27.base == ldv_is_in_set_~e.base && ldv_is_in_set_#t~mem27.offset == ldv_is_in_set_~e.offset);havoc ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset; 540#L655-22 call ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, 4 + ldv_is_in_set_~m~1.offset, 4);ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset := ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;havoc ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset - 4; 547#L655-23 [2020-11-28 03:07:54,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:54,995 INFO L82 PathProgramCache]: Analyzing trace with hash 664252476, now seen corresponding path program 1 times [2020-11-28 03:07:54,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:54,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36262815] [2020-11-28 03:07:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:55,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36262815] [2020-11-28 03:07:55,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:55,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:07:55,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830821689] [2020-11-28 03:07:55,219 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:07:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:55,220 INFO L82 PathProgramCache]: Analyzing trace with hash 210679, now seen corresponding path program 1 times [2020-11-28 03:07:55,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:55,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951017315] [2020-11-28 03:07:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:55,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:55,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:55,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:55,369 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-28 03:07:55,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:55,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:07:55,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:07:55,406 INFO L87 Difference]: Start difference. First operand 91 states and 108 transitions. cyclomatic complexity: 23 Second operand 8 states. [2020-11-28 03:07:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:56,462 INFO L93 Difference]: Finished difference Result 166 states and 195 transitions. [2020-11-28 03:07:56,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:07:56,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 195 transitions. [2020-11-28 03:07:56,466 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 60 [2020-11-28 03:07:56,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 195 transitions. [2020-11-28 03:07:56,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2020-11-28 03:07:56,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2020-11-28 03:07:56,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 195 transitions. [2020-11-28 03:07:56,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:07:56,484 INFO L691 BuchiCegarLoop]: Abstraction has 166 states and 195 transitions. [2020-11-28 03:07:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 195 transitions. [2020-11-28 03:07:56,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 90. [2020-11-28 03:07:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-28 03:07:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2020-11-28 03:07:56,496 INFO L714 BuchiCegarLoop]: Abstraction has 90 states and 104 transitions. [2020-11-28 03:07:56,497 INFO L594 BuchiCegarLoop]: Abstraction has 90 states and 104 transitions. [2020-11-28 03:07:56,497 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:07:56,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 104 transitions. [2020-11-28 03:07:56,498 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 22 [2020-11-28 03:07:56,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:07:56,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:07:56,499 INFO L852 BuchiCegarLoop]: Counterexample stem 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:56,500 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:07:56,500 INFO L794 eck$LassoCheckResult]: Stem: 816#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string2.base, #t~string2.offset, 1);call write~init~int(0, #t~string2.base, 1 + #t~string2.offset, 1);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(12);call ~#mutexes~0.base, ~#mutexes~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, ~#mutexes~0.offset, 4);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, 4 + ~#mutexes~0.offset, 4); 773#L-1 havoc main_#res;havoc foo_#t~ret32.base, foo_#t~ret32.offset, foo_#t~ret33.base, foo_#t~ret33.offset, foo_~m1~0.base, foo_~m1~0.offset, foo_~m2~0.base, foo_~m2~0.offset; 774#L666 ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 820#L565 assume !(0 == assume_abort_if_not_~cond); 815#L564 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 803#L578 foo_#t~ret32.base, foo_#t~ret32.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m1~0.base, foo_~m1~0.offset := foo_#t~ret32.base, foo_#t~ret32.offset;havoc foo_#t~ret32.base, foo_#t~ret32.offset;ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 804#L565-2 assume !(0 == assume_abort_if_not_~cond); 817#L564-1 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 807#L578-1 foo_#t~ret33.base, foo_#t~ret33.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m2~0.base, foo_~m2~0.offset := foo_#t~ret33.base, foo_#t~ret33.offset;havoc foo_#t~ret33.base, foo_#t~ret33.offset;mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 805#L655-3 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 806#L655-4 ldv_is_in_set_#res := 0; 810#L660 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 777#L669 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 778#L669-2 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 779#L655-8 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 780#L655-9 ldv_is_in_set_#res := 0; 788#L660-1 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 784#L636 assume 0 == ldv_set_add_#t~ret19;havoc ldv_set_add_#t~ret19;havoc ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset;ldv_successful_malloc_#in~size := 12;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 785#L565-4 assume !(0 == assume_abort_if_not_~cond); 818#L564-2 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 811#L578-2 ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset := ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset;havoc ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset;call write~$Pointer$(ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, 4);ldv_list_add_#in~new.base, ldv_list_add_#in~new.offset, ldv_list_add_#in~head.base, ldv_list_add_#in~head.offset := ldv_set_add_~le~0.base, 4 + ldv_set_add_~le~0.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset, ldv_list_add_~new.base, ldv_list_add_~new.offset, ldv_list_add_~head.base, ldv_list_add_~head.offset;ldv_list_add_~new.base, ldv_list_add_~new.offset := ldv_list_add_#in~new.base, ldv_list_add_#in~new.offset;ldv_list_add_~head.base, ldv_list_add_~head.offset := ldv_list_add_#in~head.base, ldv_list_add_#in~head.offset;call ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset := read~$Pointer$(ldv_list_add_~head.base, ldv_list_add_~head.offset, 4);__ldv_list_add_#in~new.base, __ldv_list_add_#in~new.offset, __ldv_list_add_#in~prev.base, __ldv_list_add_#in~prev.offset, __ldv_list_add_#in~next.base, __ldv_list_add_#in~next.offset := ldv_list_add_~new.base, ldv_list_add_~new.offset, ldv_list_add_~head.base, ldv_list_add_~head.offset, ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset;havoc __ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, __ldv_list_add_~next.base, __ldv_list_add_~next.offset;__ldv_list_add_~new.base, __ldv_list_add_~new.offset := __ldv_list_add_#in~new.base, __ldv_list_add_#in~new.offset;__ldv_list_add_~prev.base, __ldv_list_add_~prev.offset := __ldv_list_add_#in~prev.base, __ldv_list_add_#in~prev.offset;__ldv_list_add_~next.base, __ldv_list_add_~next.offset := __ldv_list_add_#in~next.base, __ldv_list_add_#in~next.offset;call write~$Pointer$(__ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~next.base, 4 + __ldv_list_add_~next.offset, 4);call write~$Pointer$(__ldv_list_add_~next.base, __ldv_list_add_~next.offset, __ldv_list_add_~new.base, __ldv_list_add_~new.offset, 4);call write~$Pointer$(__ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, __ldv_list_add_~new.base, 4 + __ldv_list_add_~new.offset, 4);call write~$Pointer$(__ldv_list_add_~new.base, __ldv_list_add_~new.offset, __ldv_list_add_~prev.base, __ldv_list_add_~prev.offset, 4); 793#L592 havoc ldv_list_add_#t~mem8.base, ldv_list_add_#t~mem8.offset; 794#L635 mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 769#L655-13 assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 770#L656-2 assume ldv_is_in_set_#t~mem27.base == ldv_is_in_set_~e.base && ldv_is_in_set_#t~mem27.offset == ldv_is_in_set_~e.offset;havoc ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset;ldv_is_in_set_#res := 1; 821#L660-2 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 799#L669-3 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 800#L669-5 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 839#L655-18 assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 822#L656-3 assume ldv_is_in_set_#t~mem27.base == ldv_is_in_set_~e.base && ldv_is_in_set_#t~mem27.offset == ldv_is_in_set_~e.offset;havoc ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset;ldv_is_in_set_#res := 1; 823#L660-3 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 844#L636-1 assume !(0 == ldv_set_add_#t~ret19);havoc ldv_set_add_#t~ret19; 802#L635-1 mutex_unlock_#in~m.base, mutex_unlock_#in~m.offset := foo_~m2~0.base, foo_~m2~0.offset;havoc mutex_unlock_#t~ret30, mutex_unlock_~m.base, mutex_unlock_~m.offset;mutex_unlock_~m.base, mutex_unlock_~m.offset := mutex_unlock_#in~m.base, mutex_unlock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_unlock_~m.base, mutex_unlock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 843#L655-23 assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 824#L656-4 [2020-11-28 03:07:56,501 INFO L796 eck$LassoCheckResult]: Loop: 824#L656-4 assume !(ldv_is_in_set_#t~mem27.base == ldv_is_in_set_~e.base && ldv_is_in_set_#t~mem27.offset == ldv_is_in_set_~e.offset);havoc ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset; 826#L655-22 call ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, 4 + ldv_is_in_set_~m~1.offset, 4);ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset := ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;havoc ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset - 4; 834#L655-23 assume !!(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset);call ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset := read~$Pointer$(ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset, 4); 824#L656-4 [2020-11-28 03:07:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:56,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1440033210, now seen corresponding path program 1 times [2020-11-28 03:07:56,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:56,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690187337] [2020-11-28 03:07:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:56,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690187337] [2020-11-28 03:07:56,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:56,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:07:56,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652944204] [2020-11-28 03:07:56,582 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:07:56,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:56,583 INFO L82 PathProgramCache]: Analyzing trace with hash 215539, now seen corresponding path program 2 times [2020-11-28 03:07:56,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:56,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558408468] [2020-11-28 03:07:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:56,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:56,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:56,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:56,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:56,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:07:56,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:07:56,715 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. cyclomatic complexity: 20 Second operand 4 states. [2020-11-28 03:07:56,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:56,805 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2020-11-28 03:07:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:07:56,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 123 transitions. [2020-11-28 03:07:56,807 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 35 [2020-11-28 03:07:56,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 97 states and 114 transitions. [2020-11-28 03:07:56,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 97 [2020-11-28 03:07:56,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 97 [2020-11-28 03:07:56,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 114 transitions. [2020-11-28 03:07:56,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:07:56,809 INFO L691 BuchiCegarLoop]: Abstraction has 97 states and 114 transitions. [2020-11-28 03:07:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 114 transitions. [2020-11-28 03:07:56,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 76. [2020-11-28 03:07:56,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-28 03:07:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-11-28 03:07:56,824 INFO L714 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-11-28 03:07:56,824 INFO L594 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-11-28 03:07:56,825 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:07:56,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 88 transitions. [2020-11-28 03:07:56,825 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 22 [2020-11-28 03:07:56,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:07:56,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:07:56,827 INFO L852 BuchiCegarLoop]: Counterexample stem 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:56,828 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:07:56,835 INFO L794 eck$LassoCheckResult]: Stem: 1014#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string2.base, #t~string2.offset, 1);call write~init~int(0, #t~string2.base, 1 + #t~string2.offset, 1);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(12);call ~#mutexes~0.base, ~#mutexes~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, ~#mutexes~0.offset, 4);call write~init~$Pointer$(~#mutexes~0.base, ~#mutexes~0.offset, ~#mutexes~0.base, 4 + ~#mutexes~0.offset, 4); 977#L-1 havoc main_#res;havoc foo_#t~ret32.base, foo_#t~ret32.offset, foo_#t~ret33.base, foo_#t~ret33.offset, foo_~m1~0.base, foo_~m1~0.offset, foo_~m2~0.base, foo_~m2~0.offset; 978#L666 ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1017#L565 assume !(0 == assume_abort_if_not_~cond); 1013#L564 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 1003#L578 foo_#t~ret32.base, foo_#t~ret32.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m1~0.base, foo_~m1~0.offset := foo_#t~ret32.base, foo_#t~ret32.offset;havoc foo_#t~ret32.base, foo_#t~ret32.offset;ldv_successful_malloc_#in~size := 8;havoc ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;havoc ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset, ldv_successful_malloc_~size, ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset;ldv_successful_malloc_~size := ldv_successful_malloc_#in~size;call ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset := #Ultimate.allocOnHeap(ldv_successful_malloc_~size);ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset := ldv_successful_malloc_#t~malloc7.base, ldv_successful_malloc_#t~malloc7.offset;assume_abort_if_not_#in~cond := (if ldv_successful_malloc_~ptr~0.base != 0 || ldv_successful_malloc_~ptr~0.offset != 0 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1004#L565-2 assume !(0 == assume_abort_if_not_~cond); 1015#L564-1 ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset := ldv_successful_malloc_~ptr~0.base, ldv_successful_malloc_~ptr~0.offset; 1007#L578-1 foo_#t~ret33.base, foo_#t~ret33.offset := ldv_successful_malloc_#res.base, ldv_successful_malloc_#res.offset;foo_~m2~0.base, foo_~m2~0.offset := foo_#t~ret33.base, foo_#t~ret33.offset;havoc foo_#t~ret33.base, foo_#t~ret33.offset;mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 1005#L655-3 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 1006#L655-4 ldv_is_in_set_#res := 0; 1010#L660 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 981#L669 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 982#L669-2 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 983#L655-8 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 984#L655-9 ldv_is_in_set_#res := 0; 991#L660-1 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 988#L636 assume !(0 == ldv_set_add_#t~ret19);havoc ldv_set_add_#t~ret19; 989#L635 mutex_lock_#in~m.base, mutex_lock_#in~m.offset := foo_~m1~0.base, foo_~m1~0.offset;havoc mutex_lock_#t~ret29, mutex_lock_~m.base, mutex_lock_~m.offset;mutex_lock_~m.base, mutex_lock_~m.offset := mutex_lock_#in~m.base, mutex_lock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 974#L655-13 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 975#L655-14 ldv_is_in_set_#res := 0; 976#L660-2 mutex_lock_#t~ret29 := ldv_is_in_set_#res; 1000#L669-3 assume !(0 != mutex_lock_#t~ret29);havoc mutex_lock_#t~ret29; 972#L669-5 ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset, ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset := mutex_lock_~m.base, mutex_lock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_add_#t~ret19, ldv_set_add_#t~ret20.base, ldv_set_add_#t~ret20.offset, ldv_set_add_~le~0.base, ldv_set_add_~le~0.offset, ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;ldv_set_add_~new.base, ldv_set_add_~new.offset := ldv_set_add_#in~new.base, ldv_set_add_#in~new.offset;ldv_set_add_~s.base, ldv_set_add_~s.offset := ldv_set_add_#in~s.base, ldv_set_add_#in~s.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := ldv_set_add_~new.base, ldv_set_add_~new.offset, ldv_set_add_~s.base, ldv_set_add_~s.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 973#L655-18 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 1035#L655-19 ldv_is_in_set_#res := 0; 1027#L660-3 ldv_set_add_#t~ret19 := ldv_is_in_set_#res; 993#L636-1 assume !(0 == ldv_set_add_#t~ret19);havoc ldv_set_add_#t~ret19; 994#L635-1 mutex_unlock_#in~m.base, mutex_unlock_#in~m.offset := foo_~m2~0.base, foo_~m2~0.offset;havoc mutex_unlock_#t~ret30, mutex_unlock_~m.base, mutex_unlock_~m.offset;mutex_unlock_~m.base, mutex_unlock_~m.offset := mutex_unlock_#in~m.base, mutex_unlock_#in~m.offset;ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset, ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset := mutex_unlock_~m.base, mutex_unlock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_is_in_set_#res;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset, ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset, ldv_is_in_set_#t~mem27.base, ldv_is_in_set_#t~mem27.offset, ldv_is_in_set_#t~mem26.base, ldv_is_in_set_#t~mem26.offset, ldv_is_in_set_~__mptr~4.base, ldv_is_in_set_~__mptr~4.offset, ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset, ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;ldv_is_in_set_~e.base, ldv_is_in_set_~e.offset := ldv_is_in_set_#in~e.base, ldv_is_in_set_#in~e.offset;ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset := ldv_is_in_set_#in~s.base, ldv_is_in_set_#in~s.offset;havoc ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset;call ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset := read~$Pointer$(ldv_is_in_set_~s.base, ldv_is_in_set_~s.offset, 4);ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset := ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;havoc ldv_is_in_set_#t~mem25.base, ldv_is_in_set_#t~mem25.offset;ldv_is_in_set_~m~1.base, ldv_is_in_set_~m~1.offset := ldv_is_in_set_~__mptr~3.base, ldv_is_in_set_~__mptr~3.offset - 4; 1032#L655-23 assume !(ldv_is_in_set_~m~1.base != ldv_is_in_set_~s.base || 4 + ldv_is_in_set_~m~1.offset != ldv_is_in_set_~s.offset); 1033#L655-24 ldv_is_in_set_#res := 0; 1044#L660-4 mutex_unlock_#t~ret30 := ldv_is_in_set_#res; 1043#L673 assume !(0 == mutex_unlock_#t~ret30);havoc mutex_unlock_#t~ret30; 1041#L673-2 ldv_set_del_#in~e.base, ldv_set_del_#in~e.offset, ldv_set_del_#in~s.base, ldv_set_del_#in~s.offset := mutex_unlock_~m.base, mutex_unlock_~m.offset, ~#mutexes~0.base, ~#mutexes~0.offset;havoc ldv_set_del_#t~mem21.base, ldv_set_del_#t~mem21.offset, ldv_set_del_~__mptr~0.base, ldv_set_del_~__mptr~0.offset, ldv_set_del_#t~mem22.base, ldv_set_del_#t~mem22.offset, ldv_set_del_~__mptr~1.base, ldv_set_del_~__mptr~1.offset, ldv_set_del_#t~mem24.base, ldv_set_del_#t~mem24.offset, ldv_set_del_#t~mem23.base, ldv_set_del_#t~mem23.offset, ldv_set_del_~__mptr~2.base, ldv_set_del_~__mptr~2.offset, ldv_set_del_~e.base, ldv_set_del_~e.offset, ldv_set_del_~s.base, ldv_set_del_~s.offset, ldv_set_del_~m~0.base, ldv_set_del_~m~0.offset, ldv_set_del_~n~0.base, ldv_set_del_~n~0.offset;ldv_set_del_~e.base, ldv_set_del_~e.offset := ldv_set_del_#in~e.base, ldv_set_del_#in~e.offset;ldv_set_del_~s.base, ldv_set_del_~s.offset := ldv_set_del_#in~s.base, ldv_set_del_#in~s.offset;havoc ldv_set_del_~m~0.base, ldv_set_del_~m~0.offset;havoc ldv_set_del_~n~0.base, ldv_set_del_~n~0.offset;call ldv_set_del_#t~mem21.base, ldv_set_del_#t~mem21.offset := read~$Pointer$(ldv_set_del_~s.base, ldv_set_del_~s.offset, 4);ldv_set_del_~__mptr~0.base, ldv_set_del_~__mptr~0.offset := ldv_set_del_#t~mem21.base, ldv_set_del_#t~mem21.offset;havoc ldv_set_del_#t~mem21.base, ldv_set_del_#t~mem21.offset;ldv_set_del_~m~0.base, ldv_set_del_~m~0.offset := ldv_set_del_~__mptr~0.base, ldv_set_del_~__mptr~0.offset - 4;call ldv_set_del_#t~mem22.base, ldv_set_del_#t~mem22.offset := read~$Pointer$(ldv_set_del_~m~0.base, 4 + ldv_set_del_~m~0.offset, 4);ldv_set_del_~__mptr~1.base, ldv_set_del_~__mptr~1.offset := ldv_set_del_#t~mem22.base, ldv_set_del_#t~mem22.offset;havoc ldv_set_del_#t~mem22.base, ldv_set_del_#t~mem22.offset;ldv_set_del_~n~0.base, ldv_set_del_~n~0.offset := ldv_set_del_~__mptr~1.base, ldv_set_del_~__mptr~1.offset - 4; 1039#L646-3 [2020-11-28 03:07:56,836 INFO L796 eck$LassoCheckResult]: Loop: 1039#L646-3 assume !!(ldv_set_del_~m~0.base != ldv_set_del_~s.base || 4 + ldv_set_del_~m~0.offset != ldv_set_del_~s.offset);call ldv_set_del_#t~mem24.base, ldv_set_del_#t~mem24.offset := read~$Pointer$(ldv_set_del_~m~0.base, ldv_set_del_~m~0.offset, 4); 1040#L647 assume !(ldv_set_del_#t~mem24.base == ldv_set_del_~e.base && ldv_set_del_#t~mem24.offset == ldv_set_del_~e.offset);havoc ldv_set_del_#t~mem24.base, ldv_set_del_#t~mem24.offset; 1042#L646-2 ldv_set_del_~m~0.base, ldv_set_del_~m~0.offset := ldv_set_del_~n~0.base, ldv_set_del_~n~0.offset;call ldv_set_del_#t~mem23.base, ldv_set_del_#t~mem23.offset := read~$Pointer$(ldv_set_del_~n~0.base, 4 + ldv_set_del_~n~0.offset, 4);ldv_set_del_~__mptr~2.base, ldv_set_del_~__mptr~2.offset := ldv_set_del_#t~mem23.base, ldv_set_del_#t~mem23.offset;havoc ldv_set_del_#t~mem23.base, ldv_set_del_#t~mem23.offset;ldv_set_del_~n~0.base, ldv_set_del_~n~0.offset := ldv_set_del_~__mptr~2.base, ldv_set_del_~__mptr~2.offset - 4; 1039#L646-3 [2020-11-28 03:07:56,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1021694202, now seen corresponding path program 1 times [2020-11-28 03:07:56,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:56,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622786830] [2020-11-28 03:07:56,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:56,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622786830] [2020-11-28 03:07:56,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:56,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:07:56,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091946656] [2020-11-28 03:07:56,900 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:07:56,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:56,900 INFO L82 PathProgramCache]: Analyzing trace with hash 245562, now seen corresponding path program 1 times [2020-11-28 03:07:56,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:56,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677779250] [2020-11-28 03:07:56,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:56,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:56,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:56,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:57,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:07:57,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:07:57,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:07:57,063 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand 4 states. [2020-11-28 03:07:57,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:57,091 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-28 03:07:57,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:07:57,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 17 transitions. [2020-11-28 03:07:57,092 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:07:57,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-11-28 03:07:57,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:07:57,093 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:07:57,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:07:57,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:07:57,093 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:07:57,093 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:07:57,093 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:07:57,093 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:07:57,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:07:57,094 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:07:57,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:07:57,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:07:57 BoogieIcfgContainer [2020-11-28 03:07:57,101 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:07:57,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:07:57,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:07:57,104 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:07:57,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:50" (3/4) ... [2020-11-28 03:07:57,109 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:07:57,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:07:57,113 INFO L168 Benchmark]: Toolchain (without parser) took 9659.03 ms. Allocated memory was 115.3 MB in the beginning and 207.6 MB in the end (delta: 92.3 MB). Free memory was 87.0 MB in the beginning and 119.8 MB in the end (delta: -32.8 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,115 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 115.3 MB. Free memory was 72.4 MB in the beginning and 72.4 MB in the end (delta: 52.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:07:57,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 973.64 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 86.6 MB in the beginning and 124.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.57 ms. Allocated memory is still 167.8 MB. Free memory was 124.1 MB in the beginning and 121.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,125 INFO L168 Benchmark]: Boogie Preprocessor took 123.05 ms. Allocated memory is still 167.8 MB. Free memory was 121.2 MB in the beginning and 117.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,126 INFO L168 Benchmark]: RCFGBuilder took 1400.11 ms. Allocated memory is still 167.8 MB. Free memory was 117.8 MB in the beginning and 61.8 MB in the end (delta: 56.0 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,128 INFO L168 Benchmark]: BuchiAutomizer took 7014.13 ms. Allocated memory was 167.8 MB in the beginning and 207.6 MB in the end (delta: 39.8 MB). Free memory was 61.8 MB in the beginning and 120.9 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:07:57,132 INFO L168 Benchmark]: Witness Printer took 6.61 ms. Allocated memory is still 207.6 MB. Free memory was 120.9 MB in the beginning and 119.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 115.3 MB. Free memory was 72.4 MB in the beginning and 72.4 MB in the end (delta: 52.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 973.64 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 86.6 MB in the beginning and 124.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.57 ms. Allocated memory is still 167.8 MB. Free memory was 124.1 MB in the beginning and 121.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.05 ms. Allocated memory is still 167.8 MB. Free memory was 121.2 MB in the beginning and 117.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1400.11 ms. Allocated memory is still 167.8 MB. Free memory was 117.8 MB in the beginning and 61.8 MB in the end (delta: 56.0 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7014.13 ms. Allocated memory was 167.8 MB in the beginning and 207.6 MB in the end (delta: 39.8 MB). Free memory was 61.8 MB in the beginning and 120.9 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.61 ms. Allocated memory is still 207.6 MB. Free memory was 120.9 MB in the beginning and 119.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic). 5 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 1.8s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 142 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 91 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 302 SDtfs, 757 SDslu, 788 SDs, 0 SdLazy, 671 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU3 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...