./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7d18463df1ccecb78ef9c884b34855756d40cf97 ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 16:02:42,880 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 16:02:42,882 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 16:02:42,889 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 16:02:42,890 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 16:02:42,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 16:02:42,891 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 16:02:42,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 16:02:42,893 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 16:02:42,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 16:02:42,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 16:02:42,895 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 16:02:42,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 16:02:42,896 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 16:02:42,897 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 16:02:42,897 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 16:02:42,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 16:02:42,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 16:02:42,900 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 16:02:42,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 16:02:42,902 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 16:02:42,903 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 16:02:42,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 16:02:42,905 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 16:02:42,905 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 16:02:42,905 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 16:02:42,906 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 16:02:42,907 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 16:02:42,907 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 16:02:42,908 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 16:02:42,908 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 16:02:42,908 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 16:02:42,908 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 16:02:42,908 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 16:02:42,909 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 16:02:42,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 16:02:42,910 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 16:02:42,916 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 16:02:42,916 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 16:02:42,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 16:02:42,917 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 16:02:42,917 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 16:02:42,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 16:02:42,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 16:02:42,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 16:02:42,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 16:02:42,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 16:02:42,920 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) 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 -> 7d18463df1ccecb78ef9c884b34855756d40cf97 [2018-11-23 16:02:42,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 16:02:42,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 16:02:42,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 16:02:42,957 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 16:02:42,957 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 16:02:42,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i [2018-11-23 16:02:43,002 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/data/d8d1be345/614a10c630ae4cc7b40e72d112d1bdaf/FLAG1bbc87209 [2018-11-23 16:02:43,442 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 16:02:43,443 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i [2018-11-23 16:02:43,450 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/data/d8d1be345/614a10c630ae4cc7b40e72d112d1bdaf/FLAG1bbc87209 [2018-11-23 16:02:43,461 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/data/d8d1be345/614a10c630ae4cc7b40e72d112d1bdaf [2018-11-23 16:02:43,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 16:02:43,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 16:02:43,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 16:02:43,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 16:02:43,468 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 16:02:43,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2780dd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43, skipping insertion in model container [2018-11-23 16:02:43,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 16:02:43,509 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 16:02:43,713 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:02:43,719 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 16:02:43,791 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:02:43,833 INFO L195 MainTranslator]: Completed translation [2018-11-23 16:02:43,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43 WrapperNode [2018-11-23 16:02:43,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 16:02:43,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 16:02:43,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 16:02:43,834 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 16:02:43,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 16:02:43,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 16:02:43,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 16:02:43,868 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 16:02:43,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... [2018-11-23 16:02:43,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 16:02:43,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 16:02:43,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 16:02:43,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 16:02:43,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 16:02:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 16:02:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 16:02:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 16:02:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 16:02:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 16:02:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 16:02:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 16:02:43,941 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 16:02:44,207 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 16:02:44,208 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-11-23 16:02:44,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:44 BoogieIcfgContainer [2018-11-23 16:02:44,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 16:02:44,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 16:02:44,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 16:02:44,212 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 16:02:44,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:43" (1/3) ... [2018-11-23 16:02:44,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4921b62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:44, skipping insertion in model container [2018-11-23 16:02:44,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:43" (2/3) ... [2018-11-23 16:02:44,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4921b62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:44, skipping insertion in model container [2018-11-23 16:02:44,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:44" (3/3) ... [2018-11-23 16:02:44,215 INFO L112 eAbstractionObserver]: Analyzing ICFG 15_dekker_true-unreach-call.i [2018-11-23 16:02:44,239 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 16:02:44,240 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 16:02:44,240 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 16:02:44,240 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 16:02:44,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 16:02:44,241 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 16:02:44,244 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 16:02:44,244 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 16:02:44,250 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 16:02:44,261 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 16:02:44,277 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 16:02:44,277 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 16:02:44,278 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 16:02:44,278 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 16:02:44,278 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 16:02:44,278 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 16:02:44,278 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 16:02:44,278 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 16:02:44,278 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 16:02:44,285 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53places, 63 transitions [2018-11-23 16:02:44,306 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 427 states. [2018-11-23 16:02:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states. [2018-11-23 16:02:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 16:02:44,315 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:02:44,315 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:02:44,317 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:02:44,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:02:44,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1543566699, now seen corresponding path program 1 times [2018-11-23 16:02:44,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:02:44,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:02:44,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:02:44,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:02:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:02:44,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:02:44,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 16:02:44,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 16:02:44,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 16:02:44,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 16:02:44,431 INFO L87 Difference]: Start difference. First operand 427 states. Second operand 2 states. [2018-11-23 16:02:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:02:44,449 INFO L93 Difference]: Finished difference Result 427 states and 927 transitions. [2018-11-23 16:02:44,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 16:02:44,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-23 16:02:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:02:44,461 INFO L225 Difference]: With dead ends: 427 [2018-11-23 16:02:44,461 INFO L226 Difference]: Without dead ends: 372 [2018-11-23 16:02:44,462 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 16:02:44,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-11-23 16:02:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2018-11-23 16:02:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-11-23 16:02:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 817 transitions. [2018-11-23 16:02:44,507 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 817 transitions. Word has length 17 [2018-11-23 16:02:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:02:44,507 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 817 transitions. [2018-11-23 16:02:44,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 16:02:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 817 transitions. [2018-11-23 16:02:44,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 16:02:44,509 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:02:44,509 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:02:44,509 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:02:44,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:02:44,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1543596490, now seen corresponding path program 1 times [2018-11-23 16:02:44,510 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:02:44,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:02:44,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:02:44,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:02:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:02:44,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:02:44,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 16:02:44,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 16:02:44,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 16:02:44,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,557 INFO L87 Difference]: Start difference. First operand 372 states and 817 transitions. Second operand 3 states. [2018-11-23 16:02:44,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:02:44,591 INFO L93 Difference]: Finished difference Result 377 states and 800 transitions. [2018-11-23 16:02:44,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 16:02:44,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-23 16:02:44,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:02:44,593 INFO L225 Difference]: With dead ends: 377 [2018-11-23 16:02:44,593 INFO L226 Difference]: Without dead ends: 278 [2018-11-23 16:02:44,594 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-11-23 16:02:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 263. [2018-11-23 16:02:44,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-11-23 16:02:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 559 transitions. [2018-11-23 16:02:44,605 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 559 transitions. Word has length 17 [2018-11-23 16:02:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:02:44,605 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 559 transitions. [2018-11-23 16:02:44,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 16:02:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 559 transitions. [2018-11-23 16:02:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 16:02:44,607 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:02:44,607 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:02:44,607 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:02:44,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:02:44,607 INFO L82 PathProgramCache]: Analyzing trace with hash 995652780, now seen corresponding path program 1 times [2018-11-23 16:02:44,607 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:02:44,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:02:44,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:02:44,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:02:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:02:44,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:02:44,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 16:02:44,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 16:02:44,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 16:02:44,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,635 INFO L87 Difference]: Start difference. First operand 263 states and 559 transitions. Second operand 3 states. [2018-11-23 16:02:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:02:44,666 INFO L93 Difference]: Finished difference Result 246 states and 512 transitions. [2018-11-23 16:02:44,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 16:02:44,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-23 16:02:44,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:02:44,668 INFO L225 Difference]: With dead ends: 246 [2018-11-23 16:02:44,668 INFO L226 Difference]: Without dead ends: 181 [2018-11-23 16:02:44,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-23 16:02:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-11-23 16:02:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-23 16:02:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 373 transitions. [2018-11-23 16:02:44,674 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 373 transitions. Word has length 21 [2018-11-23 16:02:44,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:02:44,674 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 373 transitions. [2018-11-23 16:02:44,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 16:02:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 373 transitions. [2018-11-23 16:02:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 16:02:44,675 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:02:44,676 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:02:44,676 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:02:44,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:02:44,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1294877620, now seen corresponding path program 1 times [2018-11-23 16:02:44,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:02:44,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:02:44,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:02:44,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:02:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:02:44,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:02:44,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 16:02:44,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 16:02:44,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 16:02:44,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,715 INFO L87 Difference]: Start difference. First operand 181 states and 373 transitions. Second operand 3 states. [2018-11-23 16:02:44,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:02:44,737 INFO L93 Difference]: Finished difference Result 181 states and 368 transitions. [2018-11-23 16:02:44,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 16:02:44,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 16:02:44,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:02:44,738 INFO L225 Difference]: With dead ends: 181 [2018-11-23 16:02:44,738 INFO L226 Difference]: Without dead ends: 159 [2018-11-23 16:02:44,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-23 16:02:44,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-11-23 16:02:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-11-23 16:02:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 320 transitions. [2018-11-23 16:02:44,743 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 320 transitions. Word has length 25 [2018-11-23 16:02:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:02:44,743 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 320 transitions. [2018-11-23 16:02:44,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 16:02:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 320 transitions. [2018-11-23 16:02:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 16:02:44,744 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:02:44,745 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:02:44,745 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:02:44,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:02:44,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1814740049, now seen corresponding path program 1 times [2018-11-23 16:02:44,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:02:44,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:02:44,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:02:44,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:02:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:02:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:02:44,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:02:44,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 16:02:44,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 16:02:44,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 16:02:44,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,780 INFO L87 Difference]: Start difference. First operand 159 states and 320 transitions. Second operand 3 states. [2018-11-23 16:02:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:02:44,789 INFO L93 Difference]: Finished difference Result 102 states and 230 transitions. [2018-11-23 16:02:44,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 16:02:44,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 16:02:44,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:02:44,790 INFO L225 Difference]: With dead ends: 102 [2018-11-23 16:02:44,790 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 16:02:44,791 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 16:02:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 16:02:44,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 16:02:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 16:02:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 16:02:44,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-23 16:02:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:02:44,791 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 16:02:44,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 16:02:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 16:02:44,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 16:02:44,794 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 16:02:44,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:02:44 BasicIcfg [2018-11-23 16:02:44,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 16:02:44,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 16:02:44,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 16:02:44,796 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 16:02:44,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:44" (3/4) ... [2018-11-23 16:02:44,799 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 16:02:44,804 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-23 16:02:44,807 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 16:02:44,807 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 16:02:44,835 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e1a281c4-d69f-45df-8a7c-5188af05f88d/bin-2019/uautomizer/witness.graphml [2018-11-23 16:02:44,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 16:02:44,836 INFO L168 Benchmark]: Toolchain (without parser) took 1372.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 957.1 MB in the beginning and 999.9 MB in the end (delta: -42.8 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2018-11-23 16:02:44,837 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:02:44,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:02:44,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 16:02:44,838 INFO L168 Benchmark]: Boogie Preprocessor took 20.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:02:44,838 INFO L168 Benchmark]: RCFGBuilder took 319.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-11-23 16:02:44,838 INFO L168 Benchmark]: TraceAbstraction took 586.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:02:44,839 INFO L168 Benchmark]: Witness Printer took 40.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 16:02:44,841 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 319.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 586.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * Witness Printer took 40.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 663]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 3 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 307 SDtfs, 114 SDslu, 125 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...