./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-races/race-2_3-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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_3-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 5302a66f3e1b957c89e781f7f052efe6572f798a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_3-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 5302a66f3e1b957c89e781f7f052efe6572f798a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:59:58,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:59:58,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:59:58,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:59:58,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:59:58,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:59:58,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:59:58,188 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:59:58,190 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:59:58,191 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:59:58,192 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:59:58,192 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:59:58,193 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:59:58,195 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:59:58,196 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:59:58,197 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:59:58,198 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:59:58,200 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:59:58,203 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:59:58,204 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:59:58,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:59:58,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:59:58,209 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:59:58,210 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:59:58,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:59:58,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:59:58,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:59:58,213 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:59:58,214 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:59:58,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:59:58,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:59:58,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:59:58,216 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:59:58,217 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:59:58,218 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:59:58,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:59:58,219 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:59:58,236 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:59:58,236 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:59:58,238 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:59:58,238 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:59:58,238 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:59:58,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:59:58,238 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:59:58,239 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:59:58,239 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:59:58,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:59:58,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:59:58,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:59:58,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:59:58,241 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:59:58,241 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:59:58,241 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:59:58,241 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:59:58,241 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:59:58,242 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:59:58,242 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:59:58,242 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:59:58,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:59:58,242 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:59:58,242 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:59:58,244 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:59:58,244 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:59:58,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:59:58,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:59:58,245 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 -> 5302a66f3e1b957c89e781f7f052efe6572f798a [2019-01-01 00:59:58,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:59:58,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:59:58,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:59:58,307 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:59:58,307 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:59:58,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2019-01-01 00:59:58,372 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f525e3ea6/b58a60638d044ee9a3ad1bd5ce984339/FLAGcdf85e5f8 [2019-01-01 00:59:59,020 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:59:59,021 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2019-01-01 00:59:59,046 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f525e3ea6/b58a60638d044ee9a3ad1bd5ce984339/FLAGcdf85e5f8 [2019-01-01 00:59:59,205 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f525e3ea6/b58a60638d044ee9a3ad1bd5ce984339 [2019-01-01 00:59:59,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:59:59,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:59:59,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:59:59,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:59:59,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:59:59,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:59:59" (1/1) ... [2019-01-01 00:59:59,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443faa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:59, skipping insertion in model container [2019-01-01 00:59:59,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:59:59" (1/1) ... [2019-01-01 00:59:59,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:59:59,303 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 01:00:00,129 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:00,140 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 01:00:00,321 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:00,693 INFO L195 MainTranslator]: Completed translation [2019-01-01 01:00:00,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00 WrapperNode [2019-01-01 01:00:00,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:00,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:00,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 01:00:00,696 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 01:00:00,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:00,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 01:00:00,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 01:00:00,809 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 01:00:00,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (1/1) ... [2019-01-01 01:00:00,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 01:00:00,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 01:00:00,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 01:00:00,870 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 01:00:00,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (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 [2019-01-01 01:00:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 01:00:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 01:00:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-01-01 01:00:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 01:00:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 01:00:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 01:00:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2019-01-01 01:00:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2019-01-01 01:00:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 01:00:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 01:00:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 01:00:00,967 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 01:00:02,052 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 01:00:02,053 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2019-01-01 01:00:02,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:02 BoogieIcfgContainer [2019-01-01 01:00:02,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 01:00:02,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 01:00:02,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 01:00:02,060 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 01:00:02,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:59:59" (1/3) ... [2019-01-01 01:00:02,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59fe0000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:02, skipping insertion in model container [2019-01-01 01:00:02,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:00" (2/3) ... [2019-01-01 01:00:02,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59fe0000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:02, skipping insertion in model container [2019-01-01 01:00:02,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:02" (3/3) ... [2019-01-01 01:00:02,065 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2019-01-01 01:00:02,112 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,113 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,113 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,113 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,113 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,114 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,114 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,114 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,114 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,114 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,114 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,116 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,116 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,116 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,117 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,117 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,117 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,117 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,117 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,117 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,119 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,119 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,121 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,122 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,122 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,123 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,123 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,123 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,123 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,124 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,125 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,125 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,125 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,126 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,126 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,126 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,126 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,126 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,127 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,127 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,127 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,127 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,127 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,127 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,130 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,130 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,130 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,130 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,130 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,131 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,132 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,132 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,132 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,132 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,133 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,133 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,133 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,133 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,133 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,135 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,136 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,136 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,136 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,136 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,136 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,138 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,138 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:02,232 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 01:00:02,232 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 01:00:02,243 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-01 01:00:02,266 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-01 01:00:02,297 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 01:00:02,298 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 01:00:02,298 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 01:00:02,298 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 01:00:02,298 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 01:00:02,298 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 01:00:02,299 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 01:00:02,299 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 01:00:02,299 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 01:00:02,316 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2019-01-01 01:00:02,904 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12658 states. [2019-01-01 01:00:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 12658 states. [2019-01-01 01:00:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-01-01 01:00:02,925 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:02,926 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] [2019-01-01 01:00:02,929 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:02,937 INFO L82 PathProgramCache]: Analyzing trace with hash -124987563, now seen corresponding path program 1 times [2019-01-01 01:00:02,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:02,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:03,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:03,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:03,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:03,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:03,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:03,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:03,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:03,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:03,719 INFO L87 Difference]: Start difference. First operand 12658 states. Second operand 6 states. [2019-01-01 01:00:04,167 WARN L181 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-01-01 01:00:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:06,135 INFO L93 Difference]: Finished difference Result 16553 states and 46657 transitions. [2019-01-01 01:00:06,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-01 01:00:06,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2019-01-01 01:00:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:06,260 INFO L225 Difference]: With dead ends: 16553 [2019-01-01 01:00:06,260 INFO L226 Difference]: Without dead ends: 14482 [2019-01-01 01:00:06,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-01-01 01:00:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14482 states. [2019-01-01 01:00:06,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14482 to 11906. [2019-01-01 01:00:06,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2019-01-01 01:00:06,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2019-01-01 01:00:06,772 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 43 [2019-01-01 01:00:06,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:06,773 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2019-01-01 01:00:06,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:06,774 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2019-01-01 01:00:06,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-01-01 01:00:06,784 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:06,785 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] [2019-01-01 01:00:06,785 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:06,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:06,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1215746383, now seen corresponding path program 1 times [2019-01-01 01:00:06,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:06,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:06,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:06,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:06,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:07,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:07,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:07,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:07,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:07,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:07,038 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 6 states. [2019-01-01 01:00:07,453 WARN L181 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-01-01 01:00:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:09,403 INFO L93 Difference]: Finished difference Result 17604 states and 49533 transitions. [2019-01-01 01:00:09,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-01 01:00:09,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2019-01-01 01:00:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:09,466 INFO L225 Difference]: With dead ends: 17604 [2019-01-01 01:00:09,466 INFO L226 Difference]: Without dead ends: 17604 [2019-01-01 01:00:09,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-01-01 01:00:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17604 states. [2019-01-01 01:00:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17604 to 12744. [2019-01-01 01:00:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12744 states. [2019-01-01 01:00:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12744 states to 12744 states and 35855 transitions. [2019-01-01 01:00:10,053 INFO L78 Accepts]: Start accepts. Automaton has 12744 states and 35855 transitions. Word has length 43 [2019-01-01 01:00:10,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:10,053 INFO L480 AbstractCegarLoop]: Abstraction has 12744 states and 35855 transitions. [2019-01-01 01:00:10,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:10,054 INFO L276 IsEmpty]: Start isEmpty. Operand 12744 states and 35855 transitions. [2019-01-01 01:00:10,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-01-01 01:00:10,059 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:10,060 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] [2019-01-01 01:00:10,060 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:10,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1032075219, now seen corresponding path program 1 times [2019-01-01 01:00:10,060 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:10,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:10,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:10,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:10,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:10,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:10,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 01:00:10,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 01:00:10,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 01:00:10,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:10,400 INFO L87 Difference]: Start difference. First operand 12744 states and 35855 transitions. Second operand 8 states. [2019-01-01 01:00:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:11,864 INFO L93 Difference]: Finished difference Result 16000 states and 44665 transitions. [2019-01-01 01:00:11,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-01 01:00:11,870 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-01-01 01:00:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:11,909 INFO L225 Difference]: With dead ends: 16000 [2019-01-01 01:00:11,909 INFO L226 Difference]: Without dead ends: 14206 [2019-01-01 01:00:11,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-01-01 01:00:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2019-01-01 01:00:12,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 13884. [2019-01-01 01:00:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2019-01-01 01:00:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2019-01-01 01:00:12,241 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 49 [2019-01-01 01:00:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:12,245 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2019-01-01 01:00:12,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 01:00:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2019-01-01 01:00:12,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-01-01 01:00:12,249 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:12,249 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] [2019-01-01 01:00:12,249 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:12,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:12,251 INFO L82 PathProgramCache]: Analyzing trace with hash -542381444, now seen corresponding path program 1 times [2019-01-01 01:00:12,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:12,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:12,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:12,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:12,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:12,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:12,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 01:00:12,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 01:00:12,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 01:00:12,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:12,711 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 8 states. [2019-01-01 01:00:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:14,085 INFO L93 Difference]: Finished difference Result 22964 states and 64349 transitions. [2019-01-01 01:00:14,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-01 01:00:14,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-01-01 01:00:14,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:14,125 INFO L225 Difference]: With dead ends: 22964 [2019-01-01 01:00:14,126 INFO L226 Difference]: Without dead ends: 22964 [2019-01-01 01:00:14,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-01-01 01:00:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2019-01-01 01:00:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 16171. [2019-01-01 01:00:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2019-01-01 01:00:14,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 45615 transitions. [2019-01-01 01:00:14,791 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 45615 transitions. Word has length 49 [2019-01-01 01:00:14,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:14,792 INFO L480 AbstractCegarLoop]: Abstraction has 16171 states and 45615 transitions. [2019-01-01 01:00:14,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 01:00:14,792 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 45615 transitions. [2019-01-01 01:00:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-01-01 01:00:14,798 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:14,798 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] [2019-01-01 01:00:14,799 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:14,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:14,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1025315275, now seen corresponding path program 1 times [2019-01-01 01:00:14,799 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:14,799 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:14,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:14,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:14,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:14,909 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) [2019-01-01 01:00:14,920 INFO L168 Benchmark]: Toolchain (without parser) took 15710.14 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.4 MB). Free memory was 947.2 MB in the beginning and 1.0 GB in the end (delta: -84.6 MB). Peak memory consumption was 246.8 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:14,923 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. [2019-01-01 01:00:14,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1482.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.2 MB in the beginning and 1.0 GB in the end (delta: -65.0 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:14,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.35 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. [2019-01-01 01:00:14,925 INFO L168 Benchmark]: Boogie Preprocessor took 60.01 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. [2019-01-01 01:00:14,927 INFO L168 Benchmark]: RCFGBuilder took 1184.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 952.6 MB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:14,928 INFO L168 Benchmark]: TraceAbstraction took 12863.04 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 952.6 MB in the beginning and 1.0 GB in the end (delta: -79.1 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:14,934 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 1482.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.2 MB in the beginning and 1.0 GB in the end (delta: -65.0 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.35 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 60.01 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 1184.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 952.6 MB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12863.04 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 952.6 MB in the beginning and 1.0 GB in the end (delta: -79.1 MB). Peak memory consumption was 110.7 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 0.1.24-2e94e6a [2019-01-01 01:00:17,364 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 01:00:17,366 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 01:00:17,379 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 01:00:17,379 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 01:00:17,380 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 01:00:17,382 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 01:00:17,384 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 01:00:17,386 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 01:00:17,387 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 01:00:17,388 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 01:00:17,388 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 01:00:17,390 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 01:00:17,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 01:00:17,392 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 01:00:17,393 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 01:00:17,394 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 01:00:17,396 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 01:00:17,399 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 01:00:17,401 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 01:00:17,402 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 01:00:17,404 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 01:00:17,406 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 01:00:17,407 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 01:00:17,407 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 01:00:17,408 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 01:00:17,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 01:00:17,411 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 01:00:17,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 01:00:17,413 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 01:00:17,413 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 01:00:17,414 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 01:00:17,414 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 01:00:17,415 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 01:00:17,416 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 01:00:17,417 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 01:00:17,418 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-01 01:00:17,435 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 01:00:17,437 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 01:00:17,438 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 01:00:17,438 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 01:00:17,438 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 01:00:17,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 01:00:17,439 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 01:00:17,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 01:00:17,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 01:00:17,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 01:00:17,440 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 01:00:17,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 01:00:17,440 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-01 01:00:17,440 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-01 01:00:17,440 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 01:00:17,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 01:00:17,441 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 01:00:17,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 01:00:17,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 01:00:17,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 01:00:17,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 01:00:17,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 01:00:17,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 01:00:17,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 01:00:17,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 01:00:17,442 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 01:00:17,442 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-01 01:00:17,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 01:00:17,443 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-01 01:00:17,443 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-01 01:00:17,443 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 -> 5302a66f3e1b957c89e781f7f052efe6572f798a [2019-01-01 01:00:17,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 01:00:17,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 01:00:17,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 01:00:17,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 01:00:17,529 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 01:00:17,530 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2019-01-01 01:00:17,580 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c66bce7/c6a33b69fa1e4b5c8e257fcfe537f818/FLAG3b952355f [2019-01-01 01:00:18,291 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 01:00:18,293 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2019-01-01 01:00:18,318 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c66bce7/c6a33b69fa1e4b5c8e257fcfe537f818/FLAG3b952355f [2019-01-01 01:00:18,434 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c66bce7/c6a33b69fa1e4b5c8e257fcfe537f818 [2019-01-01 01:00:18,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 01:00:18,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 01:00:18,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:18,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 01:00:18,445 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 01:00:18,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 01:00:18" (1/1) ... [2019-01-01 01:00:18,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4edfe1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:18, skipping insertion in model container [2019-01-01 01:00:18,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 01:00:18" (1/1) ... [2019-01-01 01:00:18,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 01:00:18,546 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 01:00:19,401 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:19,521 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 01:00:19,660 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:20,126 INFO L195 MainTranslator]: Completed translation [2019-01-01 01:00:20,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20 WrapperNode [2019-01-01 01:00:20,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:20,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:20,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 01:00:20,130 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 01:00:20,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:20,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 01:00:20,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 01:00:20,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 01:00:20,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (1/1) ... [2019-01-01 01:00:20,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 01:00:20,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 01:00:20,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 01:00:20,338 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 01:00:20,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (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 [2019-01-01 01:00:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 01:00:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-01-01 01:00:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-01-01 01:00:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 01:00:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 01:00:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 01:00:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-01 01:00:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2019-01-01 01:00:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2019-01-01 01:00:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 01:00:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-01 01:00:20,404 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 01:00:21,643 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 01:00:21,646 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2019-01-01 01:00:21,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:21 BoogieIcfgContainer [2019-01-01 01:00:21,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 01:00:21,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 01:00:21,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 01:00:21,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 01:00:21,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 01:00:18" (1/3) ... [2019-01-01 01:00:21,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dd9972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:21, skipping insertion in model container [2019-01-01 01:00:21,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:20" (2/3) ... [2019-01-01 01:00:21,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dd9972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:21, skipping insertion in model container [2019-01-01 01:00:21,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:21" (3/3) ... [2019-01-01 01:00:21,657 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2019-01-01 01:00:21,695 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,695 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,695 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,695 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,696 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,696 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,696 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,696 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,696 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,697 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,697 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,697 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,698 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,699 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,699 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,700 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,700 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,701 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,701 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,701 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,701 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,701 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,702 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,702 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,702 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,702 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,703 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,703 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,703 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,704 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,705 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,705 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,705 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,705 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,705 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,705 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,706 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,706 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,706 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,706 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,706 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,707 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,707 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,707 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,708 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,708 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,708 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,708 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,708 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,709 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,709 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,709 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,709 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,710 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,710 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:21,748 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 01:00:21,749 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 01:00:21,758 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-01 01:00:21,777 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-01 01:00:21,800 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 01:00:21,801 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 01:00:21,801 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 01:00:21,801 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 01:00:21,802 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 01:00:21,802 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 01:00:21,802 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 01:00:21,802 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 01:00:21,802 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 01:00:21,815 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2019-01-01 01:00:22,397 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12430 states. [2019-01-01 01:00:22,401 INFO L276 IsEmpty]: Start isEmpty. Operand 12430 states. [2019-01-01 01:00:22,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-01-01 01:00:22,427 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:22,430 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] [2019-01-01 01:00:22,435 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:22,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:22,443 INFO L82 PathProgramCache]: Analyzing trace with hash 2056417981, now seen corresponding path program 1 times [2019-01-01 01:00:22,454 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:22,455 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 [2019-01-01 01:00:22,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:22,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:23,122 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 [2019-01-01 01:00:23,141 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 [2019-01-01 01:00:23,141 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,158 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,240 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-01-01 01:00:23,387 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 [2019-01-01 01:00:23,399 INFO L701 Elim1Store]: detected not equals via solver [2019-01-01 01:00:23,402 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 [2019-01-01 01:00:23,403 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,488 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-01-01 01:00:23,567 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 [2019-01-01 01:00:23,581 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 [2019-01-01 01:00:23,582 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:23,603 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2019-01-01 01:00:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:23,894 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2019-01-01 01:00:23,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:23,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 01:00:23,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 01:00:23,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 01:00:23,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:23,930 INFO L87 Difference]: Start difference. First operand 12430 states. Second operand 8 states. [2019-01-01 01:00:24,640 WARN L181 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-01-01 01:00:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:27,583 INFO L93 Difference]: Finished difference Result 16325 states and 46009 transitions. [2019-01-01 01:00:27,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-01 01:00:27,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-01-01 01:00:27,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:27,737 INFO L225 Difference]: With dead ends: 16325 [2019-01-01 01:00:27,738 INFO L226 Difference]: Without dead ends: 14254 [2019-01-01 01:00:27,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-01-01 01:00:27,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14254 states. [2019-01-01 01:00:28,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14254 to 11678. [2019-01-01 01:00:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2019-01-01 01:00:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2019-01-01 01:00:28,247 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 40 [2019-01-01 01:00:28,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:28,248 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2019-01-01 01:00:28,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 01:00:28,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2019-01-01 01:00:28,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-01-01 01:00:28,252 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:28,252 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] [2019-01-01 01:00:28,252 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:28,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:28,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1377584212, now seen corresponding path program 1 times [2019-01-01 01:00:28,253 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:28,254 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 [2019-01-01 01:00:28,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:28,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:28,759 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 [2019-01-01 01:00:28,763 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 [2019-01-01 01:00:28,764 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,787 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-01-01 01:00:28,840 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 [2019-01-01 01:00:28,847 INFO L701 Elim1Store]: detected not equals via solver [2019-01-01 01:00:28,849 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 [2019-01-01 01:00:28,850 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-01-01 01:00:28,967 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 22 treesize of output 16 [2019-01-01 01:00:28,971 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 16 treesize of output 3 [2019-01-01 01:00:28,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:28,984 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2019-01-01 01:00:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:29,064 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Broken pipe [2019-01-01 01:00:29,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:29,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-01 01:00:29,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 01:00:29,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 01:00:29,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-01-01 01:00:29,081 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 10 states. [2019-01-01 01:00:32,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:32,958 INFO L93 Difference]: Finished difference Result 17215 states and 48432 transitions. [2019-01-01 01:00:32,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-01-01 01:00:32,958 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2019-01-01 01:00:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:33,018 INFO L225 Difference]: With dead ends: 17215 [2019-01-01 01:00:33,019 INFO L226 Difference]: Without dead ends: 17215 [2019-01-01 01:00:33,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2019-01-01 01:00:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17215 states. [2019-01-01 01:00:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17215 to 12516. [2019-01-01 01:00:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12516 states. [2019-01-01 01:00:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12516 states to 12516 states and 35207 transitions. [2019-01-01 01:00:33,563 INFO L78 Accepts]: Start accepts. Automaton has 12516 states and 35207 transitions. Word has length 41 [2019-01-01 01:00:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:33,564 INFO L480 AbstractCegarLoop]: Abstraction has 12516 states and 35207 transitions. [2019-01-01 01:00:33,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 01:00:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 12516 states and 35207 transitions. [2019-01-01 01:00:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-01-01 01:00:33,574 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:33,575 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] [2019-01-01 01:00:33,575 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:33,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:33,575 INFO L82 PathProgramCache]: Analyzing trace with hash -891356043, now seen corresponding path program 1 times [2019-01-01 01:00:33,577 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:33,577 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 [2019-01-01 01:00:33,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:33,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:33,893 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 [2019-01-01 01:00:33,907 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 [2019-01-01 01:00:33,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:33,913 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:33,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:33,918 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-01-01 01:00:33,934 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 [2019-01-01 01:00:33,942 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 [2019-01-01 01:00:33,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:33,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:33,951 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:33,951 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2019-01-01 01:00:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:33,994 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:33,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:33,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:33,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:33,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:33,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:33,998 INFO L87 Difference]: Start difference. First operand 12516 states and 35207 transitions. Second operand 6 states. [2019-01-01 01:00:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:35,271 INFO L93 Difference]: Finished difference Result 15767 states and 44012 transitions. [2019-01-01 01:00:35,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 01:00:35,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2019-01-01 01:00:35,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:35,310 INFO L225 Difference]: With dead ends: 15767 [2019-01-01 01:00:35,310 INFO L226 Difference]: Without dead ends: 13979 [2019-01-01 01:00:35,311 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-01-01 01:00:35,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13979 states. [2019-01-01 01:00:35,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13979 to 13657. [2019-01-01 01:00:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2019-01-01 01:00:35,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2019-01-01 01:00:35,620 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 46 [2019-01-01 01:00:35,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:35,620 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2019-01-01 01:00:35,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:35,621 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2019-01-01 01:00:35,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-01-01 01:00:35,624 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:35,624 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] [2019-01-01 01:00:35,625 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:35,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:35,626 INFO L82 PathProgramCache]: Analyzing trace with hash -345150056, now seen corresponding path program 1 times [2019-01-01 01:00:35,626 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:35,626 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 [2019-01-01 01:00:35,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:35,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:35,923 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 [2019-01-01 01:00:35,938 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 [2019-01-01 01:00:35,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:35,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:35,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:35,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-01-01 01:00:36,037 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 19 treesize of output 15 [2019-01-01 01:00:36,045 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 15 treesize of output 3 [2019-01-01 01:00:36,046 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:36,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:36,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:36,056 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2019-01-01 01:00:36,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 01:00:36,097 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:36,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:36,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:36,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:36,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:36,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:36,107 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 6 states. [2019-01-01 01:00:37,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:37,416 INFO L93 Difference]: Finished difference Result 22939 states and 64256 transitions. [2019-01-01 01:00:37,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-01 01:00:37,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-01-01 01:00:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:37,476 INFO L225 Difference]: With dead ends: 22939 [2019-01-01 01:00:37,476 INFO L226 Difference]: Without dead ends: 22939 [2019-01-01 01:00:37,477 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 01:00:37,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22939 states. [2019-01-01 01:00:38,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22939 to 15944. [2019-01-01 01:00:38,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15944 states. [2019-01-01 01:00:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15944 states to 15944 states and 44968 transitions. [2019-01-01 01:00:38,074 INFO L78 Accepts]: Start accepts. Automaton has 15944 states and 44968 transitions. Word has length 47 [2019-01-01 01:00:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:38,074 INFO L480 AbstractCegarLoop]: Abstraction has 15944 states and 44968 transitions. [2019-01-01 01:00:38,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 15944 states and 44968 transitions. [2019-01-01 01:00:38,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-01-01 01:00:38,081 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:38,082 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] [2019-01-01 01:00:38,082 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:38,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:38,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1541882228, now seen corresponding path program 1 times [2019-01-01 01:00:38,084 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:38,085 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 [2019-01-01 01:00:38,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:39,042 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-01 01:00:39,043 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) [2019-01-01 01:00:39,050 INFO L168 Benchmark]: Toolchain (without parser) took 20611.81 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 329.8 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -109.9 MB). Peak memory consumption was 219.9 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:39,055 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-01-01 01:00:39,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1687.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 943.2 MB in the beginning and 1.0 GB in the end (delta: -71.3 MB). Peak memory consumption was 88.2 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:39,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.38 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. [2019-01-01 01:00:39,058 INFO L168 Benchmark]: Boogie Preprocessor took 83.69 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. [2019-01-01 01:00:39,060 INFO L168 Benchmark]: RCFGBuilder took 1310.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 955.5 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:39,060 INFO L168 Benchmark]: TraceAbstraction took 17401.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.1 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -97.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:39,066 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1687.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 943.2 MB in the beginning and 1.0 GB in the end (delta: -71.3 MB). Peak memory consumption was 88.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 123.38 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 83.69 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. * RCFGBuilder took 1310.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 955.5 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17401.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.1 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -97.5 MB). Peak memory consumption was 87.5 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...