./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/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 f304bbeec274f04c648f2bacc19ae28d00889b1b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 02:33:09,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:33:09,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:33:09,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:33:09,394 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:33:09,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:33:09,395 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:33:09,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:33:09,397 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:33:09,397 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:33:09,398 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:33:09,398 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:33:09,398 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:33:09,399 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:33:09,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:33:09,400 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:33:09,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:33:09,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:33:09,402 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:33:09,402 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:33:09,403 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:33:09,404 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:33:09,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:33:09,405 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:33:09,405 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:33:09,405 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:33:09,406 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:33:09,406 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:33:09,406 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:33:09,407 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:33:09,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:33:09,407 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:33:09,408 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:33:09,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:33:09,408 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:33:09,408 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:33:09,409 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 02:33:09,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:33:09,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:33:09,416 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:33:09,416 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:33:09,417 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 02:33:09,417 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:33:09,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:33:09,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:33:09,418 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:33:09,418 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:33:09,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:33:09,419 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 02:33:09,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:33:09,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 02:33:09,419 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_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/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 -> f304bbeec274f04c648f2bacc19ae28d00889b1b [2018-12-09 02:33:09,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:33:09,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:33:09,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:33:09,445 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:33:09,445 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:33:09,445 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_5-container_of_false-unreach-call.i [2018-12-09 02:33:09,480 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/data/66d27e238/e3a9bedbb2874327ba647066263e6bbb/FLAG600a75984 [2018-12-09 02:33:09,919 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:33:09,920 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/sv-benchmarks/c/ldv-races/race-2_5-container_of_false-unreach-call.i [2018-12-09 02:33:09,929 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/data/66d27e238/e3a9bedbb2874327ba647066263e6bbb/FLAG600a75984 [2018-12-09 02:33:09,940 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/data/66d27e238/e3a9bedbb2874327ba647066263e6bbb [2018-12-09 02:33:09,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:33:09,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:33:09,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:33:09,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:33:09,945 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:33:09,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:33:09" (1/1) ... [2018-12-09 02:33:09,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2c39d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:09, skipping insertion in model container [2018-12-09 02:33:09,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:33:09" (1/1) ... [2018-12-09 02:33:09,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:33:09,986 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:33:10,392 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:33:10,438 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:33:10,470 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:33:10,600 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:33:10,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10 WrapperNode [2018-12-09 02:33:10,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:33:10,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:33:10,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:33:10,601 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:33:10,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:33:10,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:33:10,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:33:10,637 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:33:10,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... [2018-12-09 02:33:10,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:33:10,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:33:10,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:33:10,660 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:33:10,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/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 [2018-12-09 02:33:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 02:33:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 02:33:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 02:33:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-09 02:33:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 02:33:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:33:10,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:33:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-12-09 02:33:10,694 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-12-09 02:33:10,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 02:33:10,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 02:33:10,695 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 02:33:11,058 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:33:11,059 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-09 02:33:11,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:33:11 BoogieIcfgContainer [2018-12-09 02:33:11,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:33:11,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:33:11,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:33:11,061 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:33:11,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:33:09" (1/3) ... [2018-12-09 02:33:11,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4317d540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:33:11, skipping insertion in model container [2018-12-09 02:33:11,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:33:10" (2/3) ... [2018-12-09 02:33:11,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4317d540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:33:11, skipping insertion in model container [2018-12-09 02:33:11,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:33:11" (3/3) ... [2018-12-09 02:33:11,063 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of_false-unreach-call.i [2018-12-09 02:33:11,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,084 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,084 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,084 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,085 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,086 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,087 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,088 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,089 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,090 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,091 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:33:11,106 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 02:33:11,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:33:11,111 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-09 02:33:11,121 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-09 02:33:11,136 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 02:33:11,136 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:33:11,136 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:33:11,136 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:33:11,136 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:33:11,137 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:33:11,137 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:33:11,137 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:33:11,137 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:33:11,144 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2018-12-09 02:33:11,319 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9148 states. [2018-12-09 02:33:11,321 INFO L276 IsEmpty]: Start isEmpty. Operand 9148 states. [2018-12-09 02:33:11,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 02:33:11,329 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:11,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:11,331 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:11,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:11,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1070418997, now seen corresponding path program 1 times [2018-12-09 02:33:11,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:11,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:11,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:11,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:11,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:11,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:11,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 02:33:11,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 02:33:11,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 02:33:11,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 02:33:11,628 INFO L87 Difference]: Start difference. First operand 9148 states. Second operand 6 states. [2018-12-09 02:33:12,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:12,139 INFO L93 Difference]: Finished difference Result 13043 states and 36091 transitions. [2018-12-09 02:33:12,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 02:33:12,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-12-09 02:33:12,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:12,176 INFO L225 Difference]: With dead ends: 13043 [2018-12-09 02:33:12,176 INFO L226 Difference]: Without dead ends: 10972 [2018-12-09 02:33:12,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-12-09 02:33:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10972 states. [2018-12-09 02:33:12,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10972 to 8396. [2018-12-09 02:33:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8396 states. [2018-12-09 02:33:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 22955 transitions. [2018-12-09 02:33:12,363 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 22955 transitions. Word has length 43 [2018-12-09 02:33:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:12,364 INFO L480 AbstractCegarLoop]: Abstraction has 8396 states and 22955 transitions. [2018-12-09 02:33:12,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 02:33:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 22955 transitions. [2018-12-09 02:33:12,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 02:33:12,366 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:12,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:12,367 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:12,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:12,367 INFO L82 PathProgramCache]: Analyzing trace with hash -31792251, now seen corresponding path program 1 times [2018-12-09 02:33:12,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:12,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:12,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:12,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:12,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:12,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:12,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 02:33:12,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 02:33:12,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 02:33:12,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 02:33:12,544 INFO L87 Difference]: Start difference. First operand 8396 states and 22955 transitions. Second operand 8 states. [2018-12-09 02:33:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:13,288 INFO L93 Difference]: Finished difference Result 11652 states and 31765 transitions. [2018-12-09 02:33:13,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 02:33:13,289 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-12-09 02:33:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:13,316 INFO L225 Difference]: With dead ends: 11652 [2018-12-09 02:33:13,316 INFO L226 Difference]: Without dead ends: 9858 [2018-12-09 02:33:13,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2018-12-09 02:33:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9858 states. [2018-12-09 02:33:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9858 to 9536. [2018-12-09 02:33:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9536 states. [2018-12-09 02:33:13,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9536 states to 9536 states and 26143 transitions. [2018-12-09 02:33:13,448 INFO L78 Accepts]: Start accepts. Automaton has 9536 states and 26143 transitions. Word has length 49 [2018-12-09 02:33:13,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:13,448 INFO L480 AbstractCegarLoop]: Abstraction has 9536 states and 26143 transitions. [2018-12-09 02:33:13,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 02:33:13,448 INFO L276 IsEmpty]: Start isEmpty. Operand 9536 states and 26143 transitions. [2018-12-09 02:33:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 02:33:13,452 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:13,453 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, 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] [2018-12-09 02:33:13,453 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:13,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:13,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1087713938, now seen corresponding path program 1 times [2018-12-09 02:33:13,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:13,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:13,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:13,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:13,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:13,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:13,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 02:33:13,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 02:33:13,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 02:33:13,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 02:33:13,520 INFO L87 Difference]: Start difference. First operand 9536 states and 26143 transitions. Second operand 5 states. [2018-12-09 02:33:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:13,575 INFO L93 Difference]: Finished difference Result 3711 states and 9633 transitions. [2018-12-09 02:33:13,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 02:33:13,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-12-09 02:33:13,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:13,580 INFO L225 Difference]: With dead ends: 3711 [2018-12-09 02:33:13,580 INFO L226 Difference]: Without dead ends: 3711 [2018-12-09 02:33:13,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-09 02:33:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2018-12-09 02:33:13,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3711. [2018-12-09 02:33:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3711 states. [2018-12-09 02:33:13,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 9633 transitions. [2018-12-09 02:33:13,624 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 9633 transitions. Word has length 57 [2018-12-09 02:33:13,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:13,624 INFO L480 AbstractCegarLoop]: Abstraction has 3711 states and 9633 transitions. [2018-12-09 02:33:13,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 02:33:13,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 9633 transitions. [2018-12-09 02:33:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-09 02:33:13,628 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:13,629 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:13,629 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:13,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:13,629 INFO L82 PathProgramCache]: Analyzing trace with hash 527323425, now seen corresponding path program 1 times [2018-12-09 02:33:13,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:13,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:13,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:13,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:13,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:13,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:13,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 02:33:13,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 02:33:13,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 02:33:13,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 02:33:13,708 INFO L87 Difference]: Start difference. First operand 3711 states and 9633 transitions. Second operand 6 states. [2018-12-09 02:33:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:14,082 INFO L93 Difference]: Finished difference Result 4030 states and 10208 transitions. [2018-12-09 02:33:14,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 02:33:14,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2018-12-09 02:33:14,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:14,087 INFO L225 Difference]: With dead ends: 4030 [2018-12-09 02:33:14,087 INFO L226 Difference]: Without dead ends: 4030 [2018-12-09 02:33:14,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-12-09 02:33:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4030 states. [2018-12-09 02:33:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4030 to 3763. [2018-12-09 02:33:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3763 states. [2018-12-09 02:33:14,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3763 states to 3763 states and 9725 transitions. [2018-12-09 02:33:14,135 INFO L78 Accepts]: Start accepts. Automaton has 3763 states and 9725 transitions. Word has length 72 [2018-12-09 02:33:14,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:14,136 INFO L480 AbstractCegarLoop]: Abstraction has 3763 states and 9725 transitions. [2018-12-09 02:33:14,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 02:33:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3763 states and 9725 transitions. [2018-12-09 02:33:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 02:33:14,140 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:14,141 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:14,141 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:14,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:14,141 INFO L82 PathProgramCache]: Analyzing trace with hash -326132827, now seen corresponding path program 1 times [2018-12-09 02:33:14,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:14,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:14,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:14,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:14,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:14,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:14,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 02:33:14,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 02:33:14,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 02:33:14,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 02:33:14,327 INFO L87 Difference]: Start difference. First operand 3763 states and 9725 transitions. Second operand 8 states. [2018-12-09 02:33:15,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:15,029 INFO L93 Difference]: Finished difference Result 4117 states and 10347 transitions. [2018-12-09 02:33:15,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 02:33:15,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2018-12-09 02:33:15,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:15,034 INFO L225 Difference]: With dead ends: 4117 [2018-12-09 02:33:15,034 INFO L226 Difference]: Without dead ends: 4117 [2018-12-09 02:33:15,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-12-09 02:33:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2018-12-09 02:33:15,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3941. [2018-12-09 02:33:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3941 states. [2018-12-09 02:33:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 10065 transitions. [2018-12-09 02:33:15,077 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 10065 transitions. Word has length 78 [2018-12-09 02:33:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:15,077 INFO L480 AbstractCegarLoop]: Abstraction has 3941 states and 10065 transitions. [2018-12-09 02:33:15,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 02:33:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 10065 transitions. [2018-12-09 02:33:15,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-09 02:33:15,080 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:15,080 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:15,081 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:15,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:15,081 INFO L82 PathProgramCache]: Analyzing trace with hash -9720480, now seen corresponding path program 1 times [2018-12-09 02:33:15,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:15,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:15,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:15,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:15,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:15,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:15,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-12-09 02:33:15,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 02:33:15,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 02:33:15,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2018-12-09 02:33:15,811 INFO L87 Difference]: Start difference. First operand 3941 states and 10065 transitions. Second operand 20 states. [2018-12-09 02:33:16,522 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2018-12-09 02:33:16,785 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-12-09 02:33:16,936 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2018-12-09 02:33:17,145 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2018-12-09 02:33:17,458 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-12-09 02:33:17,684 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-12-09 02:33:17,928 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2018-12-09 02:33:18,446 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2018-12-09 02:33:18,697 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2018-12-09 02:33:19,045 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-12-09 02:33:19,233 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-12-09 02:33:19,460 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-12-09 02:33:19,703 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-12-09 02:33:19,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:19,862 INFO L93 Difference]: Finished difference Result 18568 states and 46634 transitions. [2018-12-09 02:33:19,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-09 02:33:19,862 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 80 [2018-12-09 02:33:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:19,874 INFO L225 Difference]: With dead ends: 18568 [2018-12-09 02:33:19,874 INFO L226 Difference]: Without dead ends: 18568 [2018-12-09 02:33:19,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=534, Invalid=1272, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 02:33:19,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18568 states. [2018-12-09 02:33:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18568 to 4201. [2018-12-09 02:33:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4201 states. [2018-12-09 02:33:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 10747 transitions. [2018-12-09 02:33:19,963 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 10747 transitions. Word has length 80 [2018-12-09 02:33:19,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:19,963 INFO L480 AbstractCegarLoop]: Abstraction has 4201 states and 10747 transitions. [2018-12-09 02:33:19,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 02:33:19,963 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 10747 transitions. [2018-12-09 02:33:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-09 02:33:19,967 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:19,967 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:19,968 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:19,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:19,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1803702563, now seen corresponding path program 1 times [2018-12-09 02:33:19,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:19,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:19,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:19,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:19,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:20,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:20,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 02:33:20,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 02:33:20,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 02:33:20,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 02:33:20,116 INFO L87 Difference]: Start difference. First operand 4201 states and 10747 transitions. Second operand 8 states. [2018-12-09 02:33:20,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:20,369 INFO L93 Difference]: Finished difference Result 4400 states and 11124 transitions. [2018-12-09 02:33:20,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 02:33:20,369 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2018-12-09 02:33:20,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:20,373 INFO L225 Difference]: With dead ends: 4400 [2018-12-09 02:33:20,373 INFO L226 Difference]: Without dead ends: 4400 [2018-12-09 02:33:20,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-12-09 02:33:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2018-12-09 02:33:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 4370. [2018-12-09 02:33:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4370 states. [2018-12-09 02:33:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 11066 transitions. [2018-12-09 02:33:20,417 INFO L78 Accepts]: Start accepts. Automaton has 4370 states and 11066 transitions. Word has length 80 [2018-12-09 02:33:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:20,417 INFO L480 AbstractCegarLoop]: Abstraction has 4370 states and 11066 transitions. [2018-12-09 02:33:20,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 02:33:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4370 states and 11066 transitions. [2018-12-09 02:33:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-09 02:33:20,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:20,422 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:20,423 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:20,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:20,423 INFO L82 PathProgramCache]: Analyzing trace with hash 677598255, now seen corresponding path program 2 times [2018-12-09 02:33:20,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:20,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:20,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:20,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:33:20,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:20,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:20,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-12-09 02:33:20,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 02:33:20,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 02:33:20,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2018-12-09 02:33:20,833 INFO L87 Difference]: Start difference. First operand 4370 states and 11066 transitions. Second operand 17 states. [2018-12-09 02:33:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:22,141 INFO L93 Difference]: Finished difference Result 4247 states and 10809 transitions. [2018-12-09 02:33:22,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-09 02:33:22,141 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 80 [2018-12-09 02:33:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:22,144 INFO L225 Difference]: With dead ends: 4247 [2018-12-09 02:33:22,144 INFO L226 Difference]: Without dead ends: 4247 [2018-12-09 02:33:22,144 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=356, Invalid=766, Unknown=0, NotChecked=0, Total=1122 [2018-12-09 02:33:22,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2018-12-09 02:33:22,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4104. [2018-12-09 02:33:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4104 states. [2018-12-09 02:33:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 10544 transitions. [2018-12-09 02:33:22,184 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 10544 transitions. Word has length 80 [2018-12-09 02:33:22,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:22,184 INFO L480 AbstractCegarLoop]: Abstraction has 4104 states and 10544 transitions. [2018-12-09 02:33:22,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 02:33:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 10544 transitions. [2018-12-09 02:33:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-09 02:33:22,188 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:22,188 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:22,188 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:22,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:22,189 INFO L82 PathProgramCache]: Analyzing trace with hash -885866804, now seen corresponding path program 2 times [2018-12-09 02:33:22,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:22,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:22,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:22,196 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 02:33:22,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:33:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:33:22,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:33:22,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-12-09 02:33:22,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 02:33:22,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 02:33:22,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2018-12-09 02:33:22,872 INFO L87 Difference]: Start difference. First operand 4104 states and 10544 transitions. Second operand 20 states. [2018-12-09 02:33:23,630 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-12-09 02:33:23,772 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2018-12-09 02:33:23,936 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2018-12-09 02:33:24,156 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-12-09 02:33:24,357 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2018-12-09 02:33:24,604 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-12-09 02:33:25,328 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-12-09 02:33:25,640 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-12-09 02:33:25,788 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-12-09 02:33:25,990 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-12-09 02:33:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:33:26,149 INFO L93 Difference]: Finished difference Result 17958 states and 44904 transitions. [2018-12-09 02:33:26,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-09 02:33:26,149 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 80 [2018-12-09 02:33:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:33:26,160 INFO L225 Difference]: With dead ends: 17958 [2018-12-09 02:33:26,161 INFO L226 Difference]: Without dead ends: 17958 [2018-12-09 02:33:26,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=538, Invalid=1268, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 02:33:26,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17958 states. [2018-12-09 02:33:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17958 to 4199. [2018-12-09 02:33:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4199 states. [2018-12-09 02:33:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4199 states to 4199 states and 10736 transitions. [2018-12-09 02:33:26,253 INFO L78 Accepts]: Start accepts. Automaton has 4199 states and 10736 transitions. Word has length 80 [2018-12-09 02:33:26,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:33:26,253 INFO L480 AbstractCegarLoop]: Abstraction has 4199 states and 10736 transitions. [2018-12-09 02:33:26,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 02:33:26,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4199 states and 10736 transitions. [2018-12-09 02:33:26,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-09 02:33:26,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:33:26,258 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:33:26,259 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:33:26,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:33:26,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1058734250, now seen corresponding path program 3 times [2018-12-09 02:33:26,259 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:33:26,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:33:26,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:26,266 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 02:33:26,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:33:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:33:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:33:26,310 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 02:33:26,351 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 02:33:26,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:33:26 BasicIcfg [2018-12-09 02:33:26,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 02:33:26,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:33:26,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:33:26,352 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:33:26,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:33:11" (3/4) ... [2018-12-09 02:33:26,354 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 02:33:26,400 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1e28eca0-0c5f-44aa-805c-2dfc4ef27014/bin-2019/uautomizer/witness.graphml [2018-12-09 02:33:26,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:33:26,401 INFO L168 Benchmark]: Toolchain (without parser) took 16459.05 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 427.3 MB). Free memory was 951.7 MB in the beginning and 916.4 MB in the end (delta: 35.3 MB). Peak memory consumption was 462.6 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,401 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:33:26,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 949.0 MB in the beginning and 976.8 MB in the end (delta: -27.8 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 1.1 GB. Free memory was 976.8 MB in the beginning and 974.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,402 INFO L168 Benchmark]: Boogie Preprocessor took 22.78 ms. Allocated memory is still 1.1 GB. Free memory was 974.1 MB in the beginning and 971.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,402 INFO L168 Benchmark]: RCFGBuilder took 399.27 ms. Allocated memory is still 1.1 GB. Free memory was 971.4 MB in the beginning and 915.7 MB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,403 INFO L168 Benchmark]: TraceAbstraction took 15292.35 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 327.2 MB). Free memory was 915.7 MB in the beginning and 927.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 315.0 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,403 INFO L168 Benchmark]: Witness Printer took 48.36 ms. Allocated memory is still 1.5 GB. Free memory was 927.8 MB in the beginning and 916.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:33:26,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 657.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 949.0 MB in the beginning and 976.8 MB in the end (delta: -27.8 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 1.1 GB. Free memory was 976.8 MB in the beginning and 974.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.78 ms. Allocated memory is still 1.1 GB. Free memory was 974.1 MB in the beginning and 971.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 399.27 ms. Allocated memory is still 1.1 GB. Free memory was 971.4 MB in the beginning and 915.7 MB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15292.35 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 327.2 MB). Free memory was 915.7 MB in the beginning and 927.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 315.0 MB. Max. memory is 11.5 GB. * Witness Printer took 48.36 ms. Allocated memory is still 1.5 GB. Free memory was 927.8 MB in the beginning and 916.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3772]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3774] -1 pthread_t t1,t2; VAL [t1={69:0}, t2={58:0}] [L3839] -1 return 0; VAL [t1={69:0}, t2={58:0}] [L3847] -1 int ret = my_drv_init(); VAL [t1={69:0}, t2={58:0}] [L3848] COND TRUE -1 ret==0 VAL [t1={69:0}, t2={58:0}] [L3849] -1 int probe_ret; VAL [t1={69:0}, t2={58:0}] [L3850] -1 struct my_data data; VAL [t1={69:0}, t2={58:0}] [L3804] -1 struct device *d = &data->dev; VAL [t1={69:0}, t2={58:0}] [L3809] -1 data->shared.a = 0 VAL [t1={69:0}, t2={58:0}] [L3810] -1 data->shared.b = 0 VAL [t1={69:0}, t2={58:0}] [L3812] -1 int res = __VERIFIER_nondet_int(); VAL [t1={69:0}, t2={58:0}] [L3813] COND FALSE -1 !(\read(res)) VAL [t1={69:0}, t2={58:0}] [L3816] FCALL, FORK -1 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={63:40}, t1={69:0}, t2={58:0}] [L3817] FCALL, FORK -1 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={63:40}, t1={69:0}, t2={58:0}] [L3818] -1 return 0; VAL [arg={63:40}, t1={69:0}, t2={58:0}] [L3792] 0 struct device *dev = (struct device*)arg; VAL [arg={63:40}, arg={63:40}, dev={63:40}, t1={69:0}, t2={58:0}] [L3793] 0 struct my_data *data; VAL [arg={63:40}, arg={63:40}, dev={63:40}, t1={69:0}, t2={58:0}] [L3794] 0 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, dev={63:40}, t1={69:0}, t2={58:0}] [L3792] 1 struct device *dev = (struct device*)arg; VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, dev={63:40}, t1={69:0}, t2={58:0}] [L3793] 1 struct my_data *data; VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, dev={63:40}, t1={69:0}, t2={58:0}] [L3794] 0 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3794] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3851] -1 probe_ret = my_drv_probe(&data) VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3852] COND TRUE -1 probe_ret==0 VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3826] -1 void *status; VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3827] -1 \read(t1) VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3794] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3797] 1 data->shared.a = 1 VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3798] EXPR 1 data->shared.b VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, data->shared.b=0, dev={63:40}, t1={69:0}, t2={58:0}] [L3798] 1 data->shared.b = data->shared.b + 1 VAL [__mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, data->shared.b=0, dev={63:40}, t1={69:0}, t2={58:0}] [L3800] 1 return 0; VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3827] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3829] -1 data->shared.a = 3 VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3830] -1 data->shared.b = 3 VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3797] 0 data->shared.a = 1 VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3831] -1 data->shared.a VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3772] COND TRUE -1 !expression VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] [L3772] -1 __VERIFIER_error() VAL [\result={0:0}, __mptr={63:40}, arg={63:40}, arg={63:40}, data={63:0}, dev={63:40}, t1={69:0}, t2={58:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 161 locations, 6 error locations. UNSAFE Result, 15.2s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 11.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2374 SDtfs, 8671 SDslu, 10613 SDs, 0 SdLazy, 3092 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 38 SyntacticMatches, 10 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9536occurred in iteration=2, 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: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 31640 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 699 NumberOfCodeBlocks, 699 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 247047 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...