./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 dae69c3a5994f0236815dc66269f749edc55ae48 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 dae69c3a5994f0236815dc66269f749edc55ae48 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:44:32,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:44:32,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:44:33,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:44:33,010 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:44:33,013 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:44:33,015 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:44:33,017 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:44:33,019 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:44:33,021 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:44:33,022 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:44:33,022 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:44:33,023 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:44:33,024 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:44:33,025 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:44:33,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:44:33,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:44:33,030 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:44:33,032 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:44:33,034 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:44:33,036 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:44:33,037 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:44:33,040 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:44:33,041 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:44:33,041 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:44:33,042 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:44:33,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:44:33,044 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:44:33,045 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:44:33,047 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:44:33,047 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:44:33,048 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:44:33,048 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:44:33,048 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:44:33,049 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:44:33,051 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:44:33,051 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:44:33,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:44:33,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:44:33,068 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:44:33,068 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:44:33,069 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:44:33,069 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:44:33,069 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:44:33,069 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:44:33,069 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:44:33,069 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:44:33,071 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:44:33,071 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:44:33,071 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:44:33,071 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:44:33,071 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:44:33,072 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:44:33,072 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:44:33,073 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:44:33,073 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:44:33,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:44:33,073 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:44:33,073 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:44:33,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:44:33,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:33,075 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:44:33,075 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:44:33,075 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:44:33,075 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:44:33,076 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:44:33,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:44:33,076 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> dae69c3a5994f0236815dc66269f749edc55ae48 [2018-11-28 20:44:33,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:44:33,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:44:33,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:44:33,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:44:33,133 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:44:33,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-28 20:44:33,194 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec043b5da/4c5aaf642fb94d0aa9b8310371f7aa9e/FLAGd12e0e18a [2018-11-28 20:44:33,829 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:44:33,830 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-28 20:44:33,866 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec043b5da/4c5aaf642fb94d0aa9b8310371f7aa9e/FLAGd12e0e18a [2018-11-28 20:44:34,002 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec043b5da/4c5aaf642fb94d0aa9b8310371f7aa9e [2018-11-28 20:44:34,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:44:34,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:44:34,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:34,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:44:34,012 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:44:34,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:34" (1/1) ... [2018-11-28 20:44:34,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f599736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:34, skipping insertion in model container [2018-11-28 20:44:34,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:34" (1/1) ... [2018-11-28 20:44:34,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:44:34,112 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:44:34,976 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:35,004 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:44:35,219 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:35,662 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:44:35,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35 WrapperNode [2018-11-28 20:44:35,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:35,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:35,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:44:35,665 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:44:35,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:35,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:44:35,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:44:35,790 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:44:35,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... [2018-11-28 20:44:35,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:44:35,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:44:35,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:44:35,899 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:44:35,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:44:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:44:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 20:44:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-28 20:44:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 20:44:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:44:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:44:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-28 20:44:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-28 20:44:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:44:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 20:44:35,995 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:44:37,116 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:44:37,116 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-28 20:44:37,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:37 BoogieIcfgContainer [2018-11-28 20:44:37,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:44:37,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:44:37,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:44:37,123 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:44:37,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:44:34" (1/3) ... [2018-11-28 20:44:37,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52bbf8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:37, skipping insertion in model container [2018-11-28 20:44:37,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:35" (2/3) ... [2018-11-28 20:44:37,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52bbf8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:37, skipping insertion in model container [2018-11-28 20:44:37,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:37" (3/3) ... [2018-11-28 20:44:37,128 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of_false-unreach-call.i [2018-11-28 20:44:37,168 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,168 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,169 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,169 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,169 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,169 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,170 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,170 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,170 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,170 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,170 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,171 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,171 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,171 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,171 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,172 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,172 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,172 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,172 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,172 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,172 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,173 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,173 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,173 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,173 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,174 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,174 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,174 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,174 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,175 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,175 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,175 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,175 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,176 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,176 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,176 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,176 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,177 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,177 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,177 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,177 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,177 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,178 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,178 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,178 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,178 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,178 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,178 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,179 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,179 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,179 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,179 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,179 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,180 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,180 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,180 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,180 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,180 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,181 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,181 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,181 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,181 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,181 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,182 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,182 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,182 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,182 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,182 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,183 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,183 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:37,220 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:44:37,220 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:44:37,229 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 20:44:37,246 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 20:44:37,271 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:44:37,272 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:44:37,272 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:44:37,272 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:44:37,272 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:44:37,272 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:44:37,272 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:44:37,272 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:44:37,273 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:44:37,288 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2018-11-28 20:44:37,883 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12676 states. [2018-11-28 20:44:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 12676 states. [2018-11-28 20:44:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-28 20:44:37,908 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:37,910 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] [2018-11-28 20:44:37,913 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:37,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:37,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1462003864, now seen corresponding path program 1 times [2018-11-28 20:44:37,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:37,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:38,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:38,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:38,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:38,567 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2018-11-28 20:44:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:38,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:38,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:44:38,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:44:38,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:44:38,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:44:38,783 INFO L87 Difference]: Start difference. First operand 12676 states. Second operand 6 states. [2018-11-28 20:44:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:41,387 INFO L93 Difference]: Finished difference Result 16571 states and 46675 transitions. [2018-11-28 20:44:41,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 20:44:41,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-28 20:44:41,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:41,508 INFO L225 Difference]: With dead ends: 16571 [2018-11-28 20:44:41,508 INFO L226 Difference]: Without dead ends: 14503 [2018-11-28 20:44:41,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-28 20:44:41,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2018-11-28 20:44:42,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 11927. [2018-11-28 20:44:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11927 states. [2018-11-28 20:44:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11927 states to 11927 states and 33542 transitions. [2018-11-28 20:44:42,130 INFO L78 Accepts]: Start accepts. Automaton has 11927 states and 33542 transitions. Word has length 43 [2018-11-28 20:44:42,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:42,132 INFO L480 AbstractCegarLoop]: Abstraction has 11927 states and 33542 transitions. [2018-11-28 20:44:42,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:44:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 11927 states and 33542 transitions. [2018-11-28 20:44:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 20:44:42,147 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:42,147 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] [2018-11-28 20:44:42,148 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:42,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:42,148 INFO L82 PathProgramCache]: Analyzing trace with hash -674595693, now seen corresponding path program 1 times [2018-11-28 20:44:42,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:42,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:42,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:42,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:42,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:42,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:42,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:44:42,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:44:42,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:44:42,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:44:42,460 INFO L87 Difference]: Start difference. First operand 11927 states and 33542 transitions. Second operand 5 states. [2018-11-28 20:44:42,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:42,824 INFO L93 Difference]: Finished difference Result 11921 states and 33535 transitions. [2018-11-28 20:44:42,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:44:42,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-28 20:44:42,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:42,874 INFO L225 Difference]: With dead ends: 11921 [2018-11-28 20:44:42,874 INFO L226 Difference]: Without dead ends: 11921 [2018-11-28 20:44:42,875 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2018-11-28 20:44:43,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11906. [2018-11-28 20:44:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2018-11-28 20:44:43,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2018-11-28 20:44:43,263 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 47 [2018-11-28 20:44:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:43,264 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2018-11-28 20:44:43,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:44:43,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2018-11-28 20:44:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 20:44:43,268 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:43,268 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] [2018-11-28 20:44:43,268 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:43,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:43,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1682576984, now seen corresponding path program 1 times [2018-11-28 20:44:43,269 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:43,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:43,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:43,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:43,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:43,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:43,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:43,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:43,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:43,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:43,689 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 8 states. [2018-11-28 20:44:45,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:45,440 INFO L93 Difference]: Finished difference Result 15162 states and 42331 transitions. [2018-11-28 20:44:45,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 20:44:45,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-11-28 20:44:45,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:45,483 INFO L225 Difference]: With dead ends: 15162 [2018-11-28 20:44:45,484 INFO L226 Difference]: Without dead ends: 13368 [2018-11-28 20:44:45,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2018-11-28 20:44:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13368 states. [2018-11-28 20:44:45,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13368 to 13046. [2018-11-28 20:44:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13046 states. [2018-11-28 20:44:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 36709 transitions. [2018-11-28 20:44:45,837 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 36709 transitions. Word has length 49 [2018-11-28 20:44:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:45,839 INFO L480 AbstractCegarLoop]: Abstraction has 13046 states and 36709 transitions. [2018-11-28 20:44:45,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 36709 transitions. [2018-11-28 20:44:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 20:44:45,847 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:45,848 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] [2018-11-28 20:44:45,848 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:45,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:45,849 INFO L82 PathProgramCache]: Analyzing trace with hash 772654246, now seen corresponding path program 1 times [2018-11-28 20:44:45,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:45,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:45,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:45,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:45,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:46,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:46,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:44:46,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:44:46,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:44:46,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:44:46,349 INFO L87 Difference]: Start difference. First operand 13046 states and 36709 transitions. Second operand 6 states. [2018-11-28 20:44:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:47,096 INFO L93 Difference]: Finished difference Result 16973 states and 47577 transitions. [2018-11-28 20:44:47,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 20:44:47,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-11-28 20:44:47,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:47,145 INFO L225 Difference]: With dead ends: 16973 [2018-11-28 20:44:47,145 INFO L226 Difference]: Without dead ends: 16973 [2018-11-28 20:44:47,145 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-28 20:44:47,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16973 states. [2018-11-28 20:44:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16973 to 13884. [2018-11-28 20:44:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2018-11-28 20:44:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2018-11-28 20:44:47,510 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 53 [2018-11-28 20:44:47,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:47,512 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2018-11-28 20:44:47,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:44:47,512 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2018-11-28 20:44:47,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 20:44:47,525 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:47,526 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] [2018-11-28 20:44:47,526 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:47,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:47,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1132716599, now seen corresponding path program 1 times [2018-11-28 20:44:47,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:47,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:47,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:47,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:47,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:47,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:47,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:44:47,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:44:47,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:44:47,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:44:47,822 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 5 states. [2018-11-28 20:44:48,112 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 20:44:48,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:48,166 INFO L93 Difference]: Finished difference Result 8059 states and 22533 transitions. [2018-11-28 20:44:48,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:44:48,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-11-28 20:44:48,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:48,188 INFO L225 Difference]: With dead ends: 8059 [2018-11-28 20:44:48,188 INFO L226 Difference]: Without dead ends: 8059 [2018-11-28 20:44:48,188 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:48,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8059 states. [2018-11-28 20:44:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8059 to 8059. [2018-11-28 20:44:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8059 states. [2018-11-28 20:44:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8059 states to 8059 states and 22533 transitions. [2018-11-28 20:44:48,369 INFO L78 Accepts]: Start accepts. Automaton has 8059 states and 22533 transitions. Word has length 57 [2018-11-28 20:44:48,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:48,370 INFO L480 AbstractCegarLoop]: Abstraction has 8059 states and 22533 transitions. [2018-11-28 20:44:48,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:44:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 8059 states and 22533 transitions. [2018-11-28 20:44:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-28 20:44:48,379 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:48,380 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] [2018-11-28 20:44:48,380 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:48,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:48,381 INFO L82 PathProgramCache]: Analyzing trace with hash -524066288, now seen corresponding path program 1 times [2018-11-28 20:44:48,381 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:48,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:48,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:48,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:48,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:48,781 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-11-28 20:44:48,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:48,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:48,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:48,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:48,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:48,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:48,871 INFO L87 Difference]: Start difference. First operand 8059 states and 22533 transitions. Second operand 8 states. [2018-11-28 20:44:50,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:50,070 INFO L93 Difference]: Finished difference Result 12465 states and 34445 transitions. [2018-11-28 20:44:50,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 20:44:50,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-11-28 20:44:50,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:50,104 INFO L225 Difference]: With dead ends: 12465 [2018-11-28 20:44:50,105 INFO L226 Difference]: Without dead ends: 12465 [2018-11-28 20:44:50,105 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-28 20:44:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2018-11-28 20:44:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 10346. [2018-11-28 20:44:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10346 states. [2018-11-28 20:44:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 29105 transitions. [2018-11-28 20:44:50,355 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 29105 transitions. Word has length 59 [2018-11-28 20:44:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:50,356 INFO L480 AbstractCegarLoop]: Abstraction has 10346 states and 29105 transitions. [2018-11-28 20:44:50,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 29105 transitions. [2018-11-28 20:44:50,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-28 20:44:50,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:50,368 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] [2018-11-28 20:44:50,369 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:50,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:50,370 INFO L82 PathProgramCache]: Analyzing trace with hash -2100637634, now seen corresponding path program 1 times [2018-11-28 20:44:50,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:50,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:50,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:50,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:50,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:44:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:44:50,520 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:110) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:87) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.computeIcfgProgramExecution(IcfgProgramExecutionBuilder.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.getIcfgProgramExecution(IcfgProgramExecutionBuilder.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:344) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 20:44:50,534 INFO L168 Benchmark]: Toolchain (without parser) took 16527.20 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 335.0 MB). Free memory was 941.8 MB in the beginning and 898.0 MB in the end (delta: 43.9 MB). Peak memory consumption was 378.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:50,535 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:44:50,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1654.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 941.8 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:50,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:50,542 INFO L168 Benchmark]: Boogie Preprocessor took 107.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:44:50,542 INFO L168 Benchmark]: RCFGBuilder took 1218.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 957.2 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:50,543 INFO L168 Benchmark]: TraceAbstraction took 13413.25 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.7 MB). Free memory was 957.2 MB in the beginning and 898.0 MB in the end (delta: 59.3 MB). Peak memory consumption was 248.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:50,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1654.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 941.8 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 125.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1218.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 957.2 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13413.25 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.7 MB). Free memory was 957.2 MB in the beginning and 898.0 MB in the end (delta: 59.3 MB). Peak memory consumption was 248.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 20:44:52,950 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:44:52,952 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:44:52,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:44:52,971 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:44:52,972 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:44:52,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:44:52,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:44:52,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:44:52,986 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:44:52,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:44:52,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:44:52,990 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:44:52,992 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:44:52,993 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:44:52,994 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:44:52,995 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:44:52,997 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:44:52,999 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:44:53,000 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:44:53,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:44:53,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:44:53,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:44:53,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:44:53,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:44:53,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:44:53,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:44:53,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:44:53,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:44:53,011 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:44:53,011 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:44:53,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:44:53,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:44:53,012 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:44:53,013 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:44:53,014 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:44:53,014 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 20:44:53,030 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:44:53,030 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:44:53,031 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:44:53,031 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:44:53,032 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:44:53,032 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:44:53,032 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:44:53,033 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:44:53,033 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:44:53,033 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:44:53,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:44:53,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:44:53,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:44:53,034 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:44:53,034 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 20:44:53,034 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 20:44:53,034 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:44:53,034 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:44:53,034 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:44:53,035 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:44:53,035 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:44:53,035 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:44:53,035 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:44:53,035 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:44:53,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:53,036 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:44:53,036 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:44:53,036 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:44:53,036 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 20:44:53,036 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:44:53,036 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 20:44:53,037 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 20:44:53,037 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> dae69c3a5994f0236815dc66269f749edc55ae48 [2018-11-28 20:44:53,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:44:53,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:44:53,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:44:53,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:44:53,095 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:44:53,096 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-28 20:44:53,157 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddcca038/bfd3d08936b941c5a103e26aa6cb798a/FLAGe050b7f93 [2018-11-28 20:44:53,755 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:44:53,756 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-28 20:44:53,778 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddcca038/bfd3d08936b941c5a103e26aa6cb798a/FLAGe050b7f93 [2018-11-28 20:44:53,944 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddcca038/bfd3d08936b941c5a103e26aa6cb798a [2018-11-28 20:44:53,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:44:53,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:44:53,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:53,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:44:53,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:44:53,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:53" (1/1) ... [2018-11-28 20:44:53,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebfe14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:53, skipping insertion in model container [2018-11-28 20:44:53,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:53" (1/1) ... [2018-11-28 20:44:53,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:44:54,071 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:44:54,949 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:54,966 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:44:55,189 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:55,642 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:44:55,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55 WrapperNode [2018-11-28 20:44:55,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:55,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:55,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:44:55,644 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:44:55,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:55,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:44:55,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:44:55,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:44:55,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... [2018-11-28 20:44:55,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:44:55,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:44:55,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:44:55,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:44:55,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:44:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-28 20:44:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-28 20:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 20:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:44:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 20:44:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-28 20:44:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-28 20:44:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 20:44:55,880 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:44:57,102 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:44:57,102 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-28 20:44:57,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:57 BoogieIcfgContainer [2018-11-28 20:44:57,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:44:57,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:44:57,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:44:57,108 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:44:57,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:44:53" (1/3) ... [2018-11-28 20:44:57,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdaa604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:57, skipping insertion in model container [2018-11-28 20:44:57,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:55" (2/3) ... [2018-11-28 20:44:57,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdaa604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:57, skipping insertion in model container [2018-11-28 20:44:57,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:57" (3/3) ... [2018-11-28 20:44:57,112 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of_false-unreach-call.i [2018-11-28 20:44:57,158 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,158 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,158 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,158 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,159 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,159 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,159 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,159 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,160 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,160 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,160 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,160 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,160 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,160 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,161 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,161 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,161 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,161 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,161 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,163 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,163 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,163 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,164 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,164 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,164 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,164 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,164 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,165 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,166 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,166 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,166 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,166 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,166 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,167 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,167 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,167 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,167 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,169 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,169 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,169 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,170 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,170 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,170 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,170 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,170 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,171 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,171 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,171 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,171 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,171 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,171 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,172 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,172 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,172 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,172 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,172 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,173 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,173 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,173 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,173 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,173 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,174 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,174 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,174 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,174 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,174 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,175 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,175 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,175 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,176 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:57,247 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:44:57,248 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:44:57,257 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 20:44:57,276 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 20:44:57,302 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:44:57,302 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:44:57,302 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:44:57,303 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:44:57,303 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:44:57,303 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:44:57,303 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:44:57,303 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:44:57,303 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:44:57,319 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2018-11-28 20:44:57,885 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12448 states. [2018-11-28 20:44:57,888 INFO L276 IsEmpty]: Start isEmpty. Operand 12448 states. [2018-11-28 20:44:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 20:44:57,904 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:57,905 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] [2018-11-28 20:44:57,908 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:57,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:57,916 INFO L82 PathProgramCache]: Analyzing trace with hash 712452213, now seen corresponding path program 1 times [2018-11-28 20:44:57,927 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:44:57,928 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:44:58,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:58,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 20:44:58,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 20:44:58,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 20:44:58,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,451 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,482 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-28 20:44:58,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-28 20:44:58,671 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 20:44:58,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2018-11-28 20:44:58,674 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,707 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,822 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-28 20:44:58,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-11-28 20:44:58,903 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 5 [2018-11-28 20:44:58,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,906 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:44:58,930 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2018-11-28 20:44:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:44:59,101 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 20:44:59,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:59,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:59,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:59,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:59,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:59,142 INFO L87 Difference]: Start difference. First operand 12448 states. Second operand 8 states. [2018-11-28 20:44:59,771 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-28 20:45:01,878 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 20:45:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:45:02,680 INFO L93 Difference]: Finished difference Result 16343 states and 46027 transitions. [2018-11-28 20:45:02,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 20:45:02,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-11-28 20:45:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:45:02,797 INFO L225 Difference]: With dead ends: 16343 [2018-11-28 20:45:02,798 INFO L226 Difference]: Without dead ends: 14275 [2018-11-28 20:45:02,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-11-28 20:45:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2018-11-28 20:45:03,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 11699. [2018-11-28 20:45:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11699 states. [2018-11-28 20:45:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32894 transitions. [2018-11-28 20:45:03,354 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32894 transitions. Word has length 40 [2018-11-28 20:45:03,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:45:03,356 INFO L480 AbstractCegarLoop]: Abstraction has 11699 states and 32894 transitions. [2018-11-28 20:45:03,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:45:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32894 transitions. [2018-11-28 20:45:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 20:45:03,371 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:45:03,371 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] [2018-11-28 20:45:03,372 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:45:03,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:45:03,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1790706994, now seen corresponding path program 1 times [2018-11-28 20:45:03,374 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:45:03,374 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:03,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:45:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:45:03,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 20:45:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:45:03,720 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 20:45:03,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:45:03,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:45:03,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:45:03,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:45:03,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:45:03,730 INFO L87 Difference]: Start difference. First operand 11699 states and 32894 transitions. Second operand 5 states. [2018-11-28 20:45:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:45:04,083 INFO L93 Difference]: Finished difference Result 11693 states and 32887 transitions. [2018-11-28 20:45:04,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:45:04,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-28 20:45:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:45:04,137 INFO L225 Difference]: With dead ends: 11693 [2018-11-28 20:45:04,137 INFO L226 Difference]: Without dead ends: 11693 [2018-11-28 20:45:04,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:45:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11693 states. [2018-11-28 20:45:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11693 to 11678. [2018-11-28 20:45:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2018-11-28 20:45:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2018-11-28 20:45:04,597 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 44 [2018-11-28 20:45:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:45:04,597 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2018-11-28 20:45:04,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:45:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2018-11-28 20:45:04,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 20:45:04,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:45:04,604 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] [2018-11-28 20:45:04,605 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:45:04,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:45:04,606 INFO L82 PathProgramCache]: Analyzing trace with hash -935718427, now seen corresponding path program 1 times [2018-11-28 20:45:04,607 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:45:04,607 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:04,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:45:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:45:05,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 20:45:05,133 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 20:45:05,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 20:45:05,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:05,177 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:05,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:05,204 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 20:45:05,276 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-28 20:45:05,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2018-11-28 20:45:05,289 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:05,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:05,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:05,345 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-28 20:45:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:45:05,522 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 20:45:05,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:45:05,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:45:05,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:45:05,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:45:05,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:45:05,529 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 6 states. [2018-11-28 20:45:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:45:06,990 INFO L93 Difference]: Finished difference Result 14929 states and 41678 transitions. [2018-11-28 20:45:06,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 20:45:06,991 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-11-28 20:45:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:45:07,027 INFO L225 Difference]: With dead ends: 14929 [2018-11-28 20:45:07,028 INFO L226 Difference]: Without dead ends: 13141 [2018-11-28 20:45:07,028 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:45:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13141 states. [2018-11-28 20:45:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13141 to 12819. [2018-11-28 20:45:07,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12819 states. [2018-11-28 20:45:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12819 states to 12819 states and 36062 transitions. [2018-11-28 20:45:07,375 INFO L78 Accepts]: Start accepts. Automaton has 12819 states and 36062 transitions. Word has length 46 [2018-11-28 20:45:07,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:45:07,375 INFO L480 AbstractCegarLoop]: Abstraction has 12819 states and 36062 transitions. [2018-11-28 20:45:07,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:45:07,375 INFO L276 IsEmpty]: Start isEmpty. Operand 12819 states and 36062 transitions. [2018-11-28 20:45:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-28 20:45:07,384 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:45:07,384 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] [2018-11-28 20:45:07,384 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:45:07,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:45:07,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1539300962, now seen corresponding path program 1 times [2018-11-28 20:45:07,385 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:45:07,385 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:07,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:45:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:45:07,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 20:45:07,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 20:45:07,952 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 20:45:07,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:07,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:07,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:07,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-28 20:45:08,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-28 20:45:08,045 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 20:45:08,046 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2018-11-28 20:45:08,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:08,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:08,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:08,081 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-28 20:45:08,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-28 20:45:08,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2018-11-28 20:45:08,141 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:08,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:08,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:08,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:5 [2018-11-28 20:45:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:45:08,230 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 20:45:08,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:45:08,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 20:45:08,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 20:45:08,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 20:45:08,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 20:45:08,236 INFO L87 Difference]: Start difference. First operand 12819 states and 36062 transitions. Second operand 10 states. [2018-11-28 20:45:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:45:10,830 INFO L93 Difference]: Finished difference Result 16746 states and 46930 transitions. [2018-11-28 20:45:10,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-28 20:45:10,830 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2018-11-28 20:45:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:45:10,873 INFO L225 Difference]: With dead ends: 16746 [2018-11-28 20:45:10,873 INFO L226 Difference]: Without dead ends: 16746 [2018-11-28 20:45:10,873 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2018-11-28 20:45:10,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16746 states. [2018-11-28 20:45:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16746 to 13657. [2018-11-28 20:45:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2018-11-28 20:45:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2018-11-28 20:45:11,431 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 50 [2018-11-28 20:45:11,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:45:11,434 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2018-11-28 20:45:11,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 20:45:11,434 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2018-11-28 20:45:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 20:45:11,453 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:45:11,453 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] [2018-11-28 20:45:11,454 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:45:11,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:45:11,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1576432961, now seen corresponding path program 1 times [2018-11-28 20:45:11,455 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:45:11,455 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:11,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:45:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:45:11,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 20:45:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:45:11,685 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 20:45:11,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:45:11,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:45:11,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:45:11,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:45:11,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:45:11,690 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 5 states. [2018-11-28 20:45:11,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:45:11,797 INFO L93 Difference]: Finished difference Result 7832 states and 21886 transitions. [2018-11-28 20:45:11,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:45:11,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2018-11-28 20:45:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:45:11,818 INFO L225 Difference]: With dead ends: 7832 [2018-11-28 20:45:11,819 INFO L226 Difference]: Without dead ends: 7832 [2018-11-28 20:45:11,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:45:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7832 states. [2018-11-28 20:45:11,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7832 to 7832. [2018-11-28 20:45:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7832 states. [2018-11-28 20:45:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7832 states to 7832 states and 21886 transitions. [2018-11-28 20:45:11,986 INFO L78 Accepts]: Start accepts. Automaton has 7832 states and 21886 transitions. Word has length 54 [2018-11-28 20:45:11,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:45:11,986 INFO L480 AbstractCegarLoop]: Abstraction has 7832 states and 21886 transitions. [2018-11-28 20:45:11,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:45:11,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7832 states and 21886 transitions. [2018-11-28 20:45:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 20:45:11,994 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:45:11,995 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] [2018-11-28 20:45:11,995 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:45:11,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:45:11,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1530247818, now seen corresponding path program 1 times [2018-11-28 20:45:11,996 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:45:11,996 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:12,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:45:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:45:12,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 20:45:12,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 20:45:12,342 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 20:45:12,342 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:12,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:12,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:12,353 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 20:45:12,381 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-28 20:45:12,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2018-11-28 20:45:12,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 20:45:12,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:12,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 20:45:12,396 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-28 20:45:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:45:12,464 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 20:45:12,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:45:12,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:45:12,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:45:12,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:45:12,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:45:12,470 INFO L87 Difference]: Start difference. First operand 7832 states and 21886 transitions. Second operand 6 states. [2018-11-28 20:45:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:45:13,654 INFO L93 Difference]: Finished difference Result 12239 states and 33799 transitions. [2018-11-28 20:45:13,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 20:45:13,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-11-28 20:45:13,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:45:13,673 INFO L225 Difference]: With dead ends: 12239 [2018-11-28 20:45:13,674 INFO L226 Difference]: Without dead ends: 12239 [2018-11-28 20:45:13,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:45:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12239 states. [2018-11-28 20:45:13,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12239 to 10119. [2018-11-28 20:45:13,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10119 states. [2018-11-28 20:45:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10119 states to 10119 states and 28458 transitions. [2018-11-28 20:45:13,915 INFO L78 Accepts]: Start accepts. Automaton has 10119 states and 28458 transitions. Word has length 56 [2018-11-28 20:45:13,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:45:13,915 INFO L480 AbstractCegarLoop]: Abstraction has 10119 states and 28458 transitions. [2018-11-28 20:45:13,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:45:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 10119 states and 28458 transitions. [2018-11-28 20:45:13,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 20:45:13,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:45:13,928 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] [2018-11-28 20:45:13,928 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:45:13,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:45:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2073069998, now seen corresponding path program 1 times [2018-11-28 20:45:13,934 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 20:45:13,935 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:14,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:45:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:45:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:45:15,240 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 20:45:15,242 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:110) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:87) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.computeIcfgProgramExecution(IcfgProgramExecutionBuilder.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.getIcfgProgramExecution(IcfgProgramExecutionBuilder.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:344) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 20:45:15,246 INFO L168 Benchmark]: Toolchain (without parser) took 21296.08 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.5 MB). Free memory was 945.9 MB in the beginning and 846.6 MB in the end (delta: 99.3 MB). Peak memory consumption was 423.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:45:15,250 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:45:15,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1690.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 945.9 MB in the beginning and 1.0 GB in the end (delta: -64.7 MB). Peak memory consumption was 92.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:45:15,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:45:15,252 INFO L168 Benchmark]: Boogie Preprocessor took 61.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:45:15,253 INFO L168 Benchmark]: RCFGBuilder took 1297.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 951.1 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:45:15,253 INFO L168 Benchmark]: TraceAbstraction took 18140.67 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 182.5 MB). Free memory was 951.1 MB in the beginning and 846.6 MB in the end (delta: 104.5 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:45:15,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1690.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 945.9 MB in the beginning and 1.0 GB in the end (delta: -64.7 MB). Peak memory consumption was 92.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1297.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 951.1 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18140.67 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 182.5 MB). Free memory was 951.1 MB in the beginning and 846.6 MB in the end (delta: 104.5 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...