./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_4-container_of_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dae69c3a5994f0236815dc66269f749edc55ae48 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dae69c3a5994f0236815dc66269f749edc55ae48 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 01:00:01,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 01:00:01,104 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 01:00:01,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 01:00:01,116 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 01:00:01,117 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 01:00:01,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 01:00:01,120 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 01:00:01,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 01:00:01,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 01:00:01,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 01:00:01,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 01:00:01,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 01:00:01,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 01:00:01,127 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 01:00:01,128 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 01:00:01,129 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 01:00:01,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 01:00:01,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 01:00:01,137 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 01:00:01,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 01:00:01,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 01:00:01,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 01:00:01,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 01:00:01,142 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 01:00:01,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 01:00:01,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 01:00:01,144 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 01:00:01,145 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 01:00:01,146 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 01:00:01,146 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 01:00:01,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 01:00:01,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 01:00:01,148 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 01:00:01,149 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 01:00:01,149 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 01:00:01,150 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 01:00:01,165 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 01:00:01,165 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 01:00:01,166 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 01:00:01,167 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 01:00:01,167 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 01:00:01,167 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 01:00:01,167 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 01:00:01,167 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 01:00:01,168 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 01:00:01,168 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 01:00:01,168 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 01:00:01,168 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 01:00:01,168 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 01:00:01,168 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 01:00:01,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 01:00:01,169 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 01:00:01,169 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 01:00:01,169 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 01:00:01,169 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 01:00:01,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 01:00:01,170 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 01:00:01,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 01:00:01,170 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 01:00:01,170 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 01:00:01,170 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 01:00:01,171 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 01:00:01,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 01:00:01,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 01:00:01,171 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae69c3a5994f0236815dc66269f749edc55ae48 [2019-01-01 01:00:01,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 01:00:01,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 01:00:01,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 01:00:01,252 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 01:00:01,252 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 01:00:01,254 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2019-01-01 01:00:01,322 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512bf54a1/050ee47df7324225bdc09d939c174c83/FLAG6204c45cf [2019-01-01 01:00:01,963 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 01:00:01,964 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2019-01-01 01:00:01,988 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512bf54a1/050ee47df7324225bdc09d939c174c83/FLAG6204c45cf [2019-01-01 01:00:02,162 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512bf54a1/050ee47df7324225bdc09d939c174c83 [2019-01-01 01:00:02,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 01:00:02,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 01:00:02,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:02,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 01:00:02,175 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 01:00:02,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 01:00:02" (1/1) ... [2019-01-01 01:00:02,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a7ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:02, skipping insertion in model container [2019-01-01 01:00:02,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 01:00:02" (1/1) ... [2019-01-01 01:00:02,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 01:00:02,265 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 01:00:03,092 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:03,104 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 01:00:03,317 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:03,681 INFO L195 MainTranslator]: Completed translation [2019-01-01 01:00:03,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03 WrapperNode [2019-01-01 01:00:03,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:03,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:03,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 01:00:03,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 01:00:03,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:03,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 01:00:03,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 01:00:03,783 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 01:00:03,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (1/1) ... [2019-01-01 01:00:03,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 01:00:03,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 01:00:03,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 01:00:03,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 01:00:03,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (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 01:00:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 01:00:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 01:00:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-01-01 01:00:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 01:00:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 01:00:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 01:00:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2019-01-01 01:00:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2019-01-01 01:00:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 01:00:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 01:00:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 01:00:03,988 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 01:00:05,029 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 01:00:05,030 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2019-01-01 01:00:05,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:05 BoogieIcfgContainer [2019-01-01 01:00:05,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 01:00:05,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 01:00:05,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 01:00:05,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 01:00:05,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 01:00:02" (1/3) ... [2019-01-01 01:00:05,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df89343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:05, skipping insertion in model container [2019-01-01 01:00:05,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:03" (2/3) ... [2019-01-01 01:00:05,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df89343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:05, skipping insertion in model container [2019-01-01 01:00:05,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:05" (3/3) ... [2019-01-01 01:00:05,043 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of_false-unreach-call.i [2019-01-01 01:00:05,089 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,090 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,094 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,094 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,094 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,094 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,094 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,096 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,096 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,097 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,097 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,098 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,098 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,099 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,099 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,099 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,100 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,100 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,100 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,100 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,103 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,107 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,107 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,107 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,108 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,108 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,108 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,108 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,108 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,109 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,109 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,109 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,109 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,109 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,112 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,112 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,112 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,112 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,113 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,113 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,113 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,113 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,113 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,114 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,114 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,114 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,114 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,114 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,116 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,116 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,116 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,116 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,116 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,117 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:05,152 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 01:00:05,153 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 01:00:05,162 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-01 01:00:05,183 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-01 01:00:05,209 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 01:00:05,210 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 01:00:05,210 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 01:00:05,210 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 01:00:05,211 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 01:00:05,211 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 01:00:05,211 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 01:00:05,211 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 01:00:05,211 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 01:00:05,227 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2019-01-01 01:00:05,827 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12676 states. [2019-01-01 01:00:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 12676 states. [2019-01-01 01:00:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-01-01 01:00:05,853 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:05,855 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 01:00:05,858 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:05,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:05,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1462003864, now seen corresponding path program 1 times [2019-01-01 01:00:05,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:05,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:06,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:06,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:06,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:06,784 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 01:00:06,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:06,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:06,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:06,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:06,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:06,814 INFO L87 Difference]: Start difference. First operand 12676 states. Second operand 6 states. [2019-01-01 01:00:07,594 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-01-01 01:00:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:08,881 INFO L93 Difference]: Finished difference Result 16571 states and 46675 transitions. [2019-01-01 01:00:08,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-01 01:00:08,883 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2019-01-01 01:00:08,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:09,003 INFO L225 Difference]: With dead ends: 16571 [2019-01-01 01:00:09,003 INFO L226 Difference]: Without dead ends: 14503 [2019-01-01 01:00:09,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-01-01 01:00:09,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2019-01-01 01:00:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 11927. [2019-01-01 01:00:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11927 states. [2019-01-01 01:00:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11927 states to 11927 states and 33542 transitions. [2019-01-01 01:00:09,563 INFO L78 Accepts]: Start accepts. Automaton has 11927 states and 33542 transitions. Word has length 43 [2019-01-01 01:00:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:09,564 INFO L480 AbstractCegarLoop]: Abstraction has 11927 states and 33542 transitions. [2019-01-01 01:00:09,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 11927 states and 33542 transitions. [2019-01-01 01:00:09,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-01-01 01:00:09,572 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:09,572 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 01:00:09,572 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:09,573 INFO L82 PathProgramCache]: Analyzing trace with hash -674595693, now seen corresponding path program 1 times [2019-01-01 01:00:09,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:09,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:09,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:09,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:09,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:09,898 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 01:00:09,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:09,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 01:00:09,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 01:00:09,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 01:00:09,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 01:00:09,904 INFO L87 Difference]: Start difference. First operand 11927 states and 33542 transitions. Second operand 5 states. [2019-01-01 01:00:10,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:10,270 INFO L93 Difference]: Finished difference Result 11921 states and 33535 transitions. [2019-01-01 01:00:10,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 01:00:10,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-01-01 01:00:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:10,318 INFO L225 Difference]: With dead ends: 11921 [2019-01-01 01:00:10,318 INFO L226 Difference]: Without dead ends: 11921 [2019-01-01 01:00:10,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2019-01-01 01:00:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11906. [2019-01-01 01:00:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2019-01-01 01:00:10,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2019-01-01 01:00:10,774 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 47 [2019-01-01 01:00:10,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:10,775 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2019-01-01 01:00:10,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 01:00:10,775 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2019-01-01 01:00:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-01-01 01:00:10,781 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:10,781 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 01:00:10,782 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:10,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:10,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1682576984, now seen corresponding path program 1 times [2019-01-01 01:00:10,783 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:10,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:10,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:10,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:10,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:11,294 WARN L181 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2019-01-01 01:00:11,409 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 01:00:11,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:11,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 01:00:11,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 01:00:11,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 01:00:11,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:11,411 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 8 states. [2019-01-01 01:00:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:13,002 INFO L93 Difference]: Finished difference Result 15162 states and 42331 transitions. [2019-01-01 01:00:13,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-01 01:00:13,013 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-01-01 01:00:13,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:13,050 INFO L225 Difference]: With dead ends: 15162 [2019-01-01 01:00:13,051 INFO L226 Difference]: Without dead ends: 13368 [2019-01-01 01:00:13,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-01-01 01:00:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13368 states. [2019-01-01 01:00:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13368 to 13046. [2019-01-01 01:00:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13046 states. [2019-01-01 01:00:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 36709 transitions. [2019-01-01 01:00:13,410 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 36709 transitions. Word has length 49 [2019-01-01 01:00:13,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:13,411 INFO L480 AbstractCegarLoop]: Abstraction has 13046 states and 36709 transitions. [2019-01-01 01:00:13,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 01:00:13,411 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 36709 transitions. [2019-01-01 01:00:13,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-01-01 01:00:13,420 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:13,421 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:13,421 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:13,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:13,421 INFO L82 PathProgramCache]: Analyzing trace with hash 772654246, now seen corresponding path program 1 times [2019-01-01 01:00:13,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:13,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:13,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:13,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:13,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:13,667 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 01:00:13,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:13,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:13,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:13,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:13,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:13,669 INFO L87 Difference]: Start difference. First operand 13046 states and 36709 transitions. Second operand 6 states. [2019-01-01 01:00:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:14,585 INFO L93 Difference]: Finished difference Result 16973 states and 47577 transitions. [2019-01-01 01:00:14,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-01 01:00:14,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-01-01 01:00:14,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:14,637 INFO L225 Difference]: With dead ends: 16973 [2019-01-01 01:00:14,637 INFO L226 Difference]: Without dead ends: 16973 [2019-01-01 01:00:14,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-01-01 01:00:14,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16973 states. [2019-01-01 01:00:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16973 to 13884. [2019-01-01 01:00:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2019-01-01 01:00:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2019-01-01 01:00:15,039 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 53 [2019-01-01 01:00:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:15,041 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2019-01-01 01:00:15,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2019-01-01 01:00:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-01-01 01:00:15,056 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:15,057 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:15,063 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:15,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:15,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1132716599, now seen corresponding path program 1 times [2019-01-01 01:00:15,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:15,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:15,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:15,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:15,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:15,557 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 01:00:15,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:15,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 01:00:15,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 01:00:15,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 01:00:15,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 01:00:15,562 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 5 states. [2019-01-01 01:00:15,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:15,725 INFO L93 Difference]: Finished difference Result 8059 states and 22533 transitions. [2019-01-01 01:00:15,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 01:00:15,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-01-01 01:00:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:15,746 INFO L225 Difference]: With dead ends: 8059 [2019-01-01 01:00:15,746 INFO L226 Difference]: Without dead ends: 8059 [2019-01-01 01:00:15,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:15,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8059 states. [2019-01-01 01:00:15,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8059 to 8059. [2019-01-01 01:00:15,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8059 states. [2019-01-01 01:00:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8059 states to 8059 states and 22533 transitions. [2019-01-01 01:00:15,935 INFO L78 Accepts]: Start accepts. Automaton has 8059 states and 22533 transitions. Word has length 57 [2019-01-01 01:00:15,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:15,936 INFO L480 AbstractCegarLoop]: Abstraction has 8059 states and 22533 transitions. [2019-01-01 01:00:15,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 01:00:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8059 states and 22533 transitions. [2019-01-01 01:00:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-01-01 01:00:15,945 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:15,945 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:15,946 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:15,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:15,946 INFO L82 PathProgramCache]: Analyzing trace with hash -524066288, now seen corresponding path program 1 times [2019-01-01 01:00:15,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:15,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:15,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:15,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:15,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:16,227 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 01:00:16,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:16,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 01:00:16,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 01:00:16,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 01:00:16,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:16,229 INFO L87 Difference]: Start difference. First operand 8059 states and 22533 transitions. Second operand 8 states. [2019-01-01 01:00:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:17,423 INFO L93 Difference]: Finished difference Result 12465 states and 34445 transitions. [2019-01-01 01:00:17,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-01 01:00:17,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2019-01-01 01:00:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:17,449 INFO L225 Difference]: With dead ends: 12465 [2019-01-01 01:00:17,449 INFO L226 Difference]: Without dead ends: 12465 [2019-01-01 01:00:17,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-01-01 01:00:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2019-01-01 01:00:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 10346. [2019-01-01 01:00:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10346 states. [2019-01-01 01:00:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 29105 transitions. [2019-01-01 01:00:17,716 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 29105 transitions. Word has length 59 [2019-01-01 01:00:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:17,717 INFO L480 AbstractCegarLoop]: Abstraction has 10346 states and 29105 transitions. [2019-01-01 01:00:17,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 01:00:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 29105 transitions. [2019-01-01 01:00:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-01-01 01:00:17,729 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:17,729 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:17,729 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:17,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2100637634, now seen corresponding path program 1 times [2019-01-01 01:00:17,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 01:00:17,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 01:00:17,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:17,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:17,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 01:00:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:17,898 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 01:00:17,909 INFO L168 Benchmark]: Toolchain (without parser) took 15741.99 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 335.0 MB). Free memory was 947.2 MB in the beginning and 857.9 MB in the end (delta: 89.3 MB). Peak memory consumption was 424.4 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:17,912 INFO L168 Benchmark]: CDTParser took 0.39 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 01:00:17,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1513.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.2 MB in the beginning and 1.0 GB in the end (delta: -61.7 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:17,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.68 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:17,915 INFO L168 Benchmark]: Boogie Preprocessor took 109.12 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 01:00:17,916 INFO L168 Benchmark]: RCFGBuilder took 1138.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 950.7 MB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:17,916 INFO L168 Benchmark]: TraceAbstraction took 12871.38 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.8 MB). Free memory was 950.7 MB in the beginning and 857.9 MB in the end (delta: 92.9 MB). Peak memory consumption was 283.7 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:17,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 1513.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.2 MB in the beginning and 1.0 GB in the end (delta: -61.7 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 98.68 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.12 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 1138.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 950.7 MB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12871.38 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.8 MB). Free memory was 950.7 MB in the beginning and 857.9 MB in the end (delta: 92.9 MB). Peak memory consumption was 283.7 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 01:00:20,321 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 01:00:20,323 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 01:00:20,340 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 01:00:20,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 01:00:20,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 01:00:20,350 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 01:00:20,352 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 01:00:20,354 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 01:00:20,355 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 01:00:20,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 01:00:20,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 01:00:20,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 01:00:20,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 01:00:20,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 01:00:20,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 01:00:20,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 01:00:20,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 01:00:20,365 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 01:00:20,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 01:00:20,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 01:00:20,369 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 01:00:20,372 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 01:00:20,372 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 01:00:20,372 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 01:00:20,373 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 01:00:20,374 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 01:00:20,375 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 01:00:20,376 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 01:00:20,377 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 01:00:20,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 01:00:20,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 01:00:20,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 01:00:20,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 01:00:20,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 01:00:20,380 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 01:00:20,381 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-01 01:00:20,410 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 01:00:20,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 01:00:20,412 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 01:00:20,412 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 01:00:20,412 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 01:00:20,413 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 01:00:20,413 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 01:00:20,413 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 01:00:20,413 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 01:00:20,413 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 01:00:20,414 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 01:00:20,415 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 01:00:20,415 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-01 01:00:20,416 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-01 01:00:20,416 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 01:00:20,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 01:00:20,416 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 01:00:20,416 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 01:00:20,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 01:00:20,419 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 01:00:20,419 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 01:00:20,419 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 01:00:20,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 01:00:20,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 01:00:20,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 01:00:20,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 01:00:20,421 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-01 01:00:20,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 01:00:20,421 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-01 01:00:20,421 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-01 01:00:20,422 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae69c3a5994f0236815dc66269f749edc55ae48 [2019-01-01 01:00:20,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 01:00:20,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 01:00:20,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 01:00:20,497 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 01:00:20,497 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 01:00:20,498 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2019-01-01 01:00:20,568 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5e197d5/5443ee19ff544622920832f3f458e293/FLAG09e52d044 [2019-01-01 01:00:21,179 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 01:00:21,180 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2019-01-01 01:00:21,202 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5e197d5/5443ee19ff544622920832f3f458e293/FLAG09e52d044 [2019-01-01 01:00:21,376 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5e197d5/5443ee19ff544622920832f3f458e293 [2019-01-01 01:00:21,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 01:00:21,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 01:00:21,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:21,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 01:00:21,386 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 01:00:21,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 01:00:21" (1/1) ... [2019-01-01 01:00:21,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518c2c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:21, skipping insertion in model container [2019-01-01 01:00:21,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 01:00:21" (1/1) ... [2019-01-01 01:00:21,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 01:00:21,487 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 01:00:22,593 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:22,612 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 01:00:22,726 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 01:00:23,130 INFO L195 MainTranslator]: Completed translation [2019-01-01 01:00:23,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23 WrapperNode [2019-01-01 01:00:23,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 01:00:23,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:23,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 01:00:23,133 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 01:00:23,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 01:00:23,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 01:00:23,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 01:00:23,262 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 01:00:23,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (1/1) ... [2019-01-01 01:00:23,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 01:00:23,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 01:00:23,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 01:00:23,366 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 01:00:23,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (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 01:00:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 01:00:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-01-01 01:00:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-01-01 01:00:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 01:00:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 01:00:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 01:00:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-01 01:00:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2019-01-01 01:00:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2019-01-01 01:00:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 01:00:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-01 01:00:23,439 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 01:00:24,853 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 01:00:24,854 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2019-01-01 01:00:24,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:24 BoogieIcfgContainer [2019-01-01 01:00:24,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 01:00:24,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 01:00:24,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 01:00:24,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 01:00:24,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 01:00:21" (1/3) ... [2019-01-01 01:00:24,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd1275f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:24, skipping insertion in model container [2019-01-01 01:00:24,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 01:00:23" (2/3) ... [2019-01-01 01:00:24,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd1275f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 01:00:24, skipping insertion in model container [2019-01-01 01:00:24,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 01:00:24" (3/3) ... [2019-01-01 01:00:24,866 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of_false-unreach-call.i [2019-01-01 01:00:24,914 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,914 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,914 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,914 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,915 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,915 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,915 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,915 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,915 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,917 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,917 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,918 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,918 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,918 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,918 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,919 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,920 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,920 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,920 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,920 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,921 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,922 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,924 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,929 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,929 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,930 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,930 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,930 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,933 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,934 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,934 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,934 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,934 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,934 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,935 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,935 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,935 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,935 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,935 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,936 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,938 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,938 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,939 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,939 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,939 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,940 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,940 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,940 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,941 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,941 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,941 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,941 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,943 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,943 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,943 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,943 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,943 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,944 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,944 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,944 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,944 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,944 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:24,945 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 01:00:25,001 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 01:00:25,001 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 01:00:25,010 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-01 01:00:25,028 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-01 01:00:25,052 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 01:00:25,053 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 01:00:25,053 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 01:00:25,053 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 01:00:25,053 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 01:00:25,053 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 01:00:25,054 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 01:00:25,054 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 01:00:25,054 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 01:00:25,072 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2019-01-01 01:00:25,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12448 states. [2019-01-01 01:00:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 12448 states. [2019-01-01 01:00:25,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-01-01 01:00:25,654 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:25,656 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 01:00:25,659 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:25,667 INFO L82 PathProgramCache]: Analyzing trace with hash 712452213, now seen corresponding path program 1 times [2019-01-01 01:00:25,678 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:25,679 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 01:00:25,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:26,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:26,391 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 01:00:26,409 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 01:00:26,412 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:26,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:26,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:26,521 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-01-01 01:00:26,743 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 01:00:26,788 INFO L701 Elim1Store]: detected not equals via solver [2019-01-01 01:00:26,790 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 01:00:26,791 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:26,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:26,993 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:26,993 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-01-01 01:00:27,109 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 01:00:27,130 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 01:00:27,131 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:27,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:27,146 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 01:00:27,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2019-01-01 01:00:27,315 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 01:00:27,315 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:27,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:27,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 01:00:27,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 01:00:27,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 01:00:27,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:27,343 INFO L87 Difference]: Start difference. First operand 12448 states. Second operand 8 states. [2019-01-01 01:00:28,085 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-01-01 01:00:28,413 WARN L181 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-01-01 01:00:30,335 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-01-01 01:00:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:31,321 INFO L93 Difference]: Finished difference Result 16343 states and 46027 transitions. [2019-01-01 01:00:31,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-01 01:00:31,323 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-01-01 01:00:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:31,444 INFO L225 Difference]: With dead ends: 16343 [2019-01-01 01:00:31,444 INFO L226 Difference]: Without dead ends: 14275 [2019-01-01 01:00:31,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-01-01 01:00:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-01-01 01:00:31,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 11699. [2019-01-01 01:00:31,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11699 states. [2019-01-01 01:00:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32894 transitions. [2019-01-01 01:00:32,029 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32894 transitions. Word has length 40 [2019-01-01 01:00:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:32,031 INFO L480 AbstractCegarLoop]: Abstraction has 11699 states and 32894 transitions. [2019-01-01 01:00:32,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 01:00:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32894 transitions. [2019-01-01 01:00:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-01-01 01:00:32,045 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:32,045 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] [2019-01-01 01:00:32,046 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:32,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1790706994, now seen corresponding path program 1 times [2019-01-01 01:00:32,048 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:32,048 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 01:00:32,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:32,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:32,398 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 01:00:32,398 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 01:00:32,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:32,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 01:00:32,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 01:00:32,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 01:00:32,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 01:00:32,405 INFO L87 Difference]: Start difference. First operand 11699 states and 32894 transitions. Second operand 5 states. [2019-01-01 01:00:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:32,933 INFO L93 Difference]: Finished difference Result 11693 states and 32887 transitions. [2019-01-01 01:00:32,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 01:00:32,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-01-01 01:00:32,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:32,983 INFO L225 Difference]: With dead ends: 11693 [2019-01-01 01:00:32,984 INFO L226 Difference]: Without dead ends: 11693 [2019-01-01 01:00:32,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11693 states. [2019-01-01 01:00:33,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11693 to 11678. [2019-01-01 01:00:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2019-01-01 01:00:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2019-01-01 01:00:33,429 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 44 [2019-01-01 01:00:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:33,430 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2019-01-01 01:00:33,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 01:00:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2019-01-01 01:00:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-01-01 01:00:33,436 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:33,436 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 01:00:33,437 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:33,437 INFO L82 PathProgramCache]: Analyzing trace with hash -935718427, now seen corresponding path program 1 times [2019-01-01 01:00:33,439 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:33,440 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 01:00:33,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:33,948 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:33,992 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 01:00:34,007 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 01:00:34,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:34,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:34,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:34,058 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-01-01 01:00:34,124 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 01:00:34,139 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 01:00:34,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:34,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:34,165 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 01:00:34,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2019-01-01 01:00:34,213 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 01:00:34,213 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:34,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:34,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:34,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:34,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:34,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:34,217 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 6 states. [2019-01-01 01:00:36,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:36,143 INFO L93 Difference]: Finished difference Result 14929 states and 41678 transitions. [2019-01-01 01:00:36,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 01:00:36,143 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2019-01-01 01:00:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:36,189 INFO L225 Difference]: With dead ends: 14929 [2019-01-01 01:00:36,189 INFO L226 Difference]: Without dead ends: 13141 [2019-01-01 01:00:36,189 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-01-01 01:00:36,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13141 states. [2019-01-01 01:00:36,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13141 to 12819. [2019-01-01 01:00:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12819 states. [2019-01-01 01:00:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12819 states to 12819 states and 36062 transitions. [2019-01-01 01:00:36,548 INFO L78 Accepts]: Start accepts. Automaton has 12819 states and 36062 transitions. Word has length 46 [2019-01-01 01:00:36,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:36,548 INFO L480 AbstractCegarLoop]: Abstraction has 12819 states and 36062 transitions. [2019-01-01 01:00:36,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 12819 states and 36062 transitions. [2019-01-01 01:00:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-01-01 01:00:36,555 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:36,555 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] [2019-01-01 01:00:36,556 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:36,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1539300962, now seen corresponding path program 1 times [2019-01-01 01:00:36,557 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:36,557 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 01:00:36,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:37,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:37,204 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 01:00:37,222 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 01:00:37,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-01-01 01:00:37,330 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 01:00:37,336 INFO L701 Elim1Store]: detected not equals via solver [2019-01-01 01:00:37,337 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 01:00:37,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,379 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-01-01 01:00:37,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2019-01-01 01:00:37,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2019-01-01 01:00:37,461 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,468 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:37,473 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 01:00:37,473 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:5 [2019-01-01 01:00:37,541 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 01:00:37,541 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:37,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:37,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-01 01:00:37,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 01:00:37,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 01:00:37,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-01-01 01:00:37,553 INFO L87 Difference]: Start difference. First operand 12819 states and 36062 transitions. Second operand 10 states. [2019-01-01 01:00:40,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:40,087 INFO L93 Difference]: Finished difference Result 16746 states and 46930 transitions. [2019-01-01 01:00:40,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-01-01 01:00:40,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2019-01-01 01:00:40,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:40,129 INFO L225 Difference]: With dead ends: 16746 [2019-01-01 01:00:40,130 INFO L226 Difference]: Without dead ends: 16746 [2019-01-01 01:00:40,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2019-01-01 01:00:40,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16746 states. [2019-01-01 01:00:40,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16746 to 13657. [2019-01-01 01:00:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2019-01-01 01:00:40,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2019-01-01 01:00:40,718 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 50 [2019-01-01 01:00:40,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:40,721 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2019-01-01 01:00:40,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 01:00:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2019-01-01 01:00:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-01-01 01:00:40,733 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:40,733 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:40,733 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:40,734 INFO L82 PathProgramCache]: Analyzing trace with hash 369553983, now seen corresponding path program 1 times [2019-01-01 01:00:40,735 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:40,736 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 01:00:40,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:40,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:40,923 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 01:00:40,923 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:40,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:40,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 01:00:40,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 01:00:40,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 01:00:40,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 01:00:40,929 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 5 states. [2019-01-01 01:00:41,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:41,044 INFO L93 Difference]: Finished difference Result 7832 states and 21886 transitions. [2019-01-01 01:00:41,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 01:00:41,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2019-01-01 01:00:41,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:41,065 INFO L225 Difference]: With dead ends: 7832 [2019-01-01 01:00:41,065 INFO L226 Difference]: Without dead ends: 7832 [2019-01-01 01:00:41,066 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 01:00:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7832 states. [2019-01-01 01:00:41,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7832 to 7832. [2019-01-01 01:00:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7832 states. [2019-01-01 01:00:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7832 states to 7832 states and 21886 transitions. [2019-01-01 01:00:41,242 INFO L78 Accepts]: Start accepts. Automaton has 7832 states and 21886 transitions. Word has length 54 [2019-01-01 01:00:41,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:41,242 INFO L480 AbstractCegarLoop]: Abstraction has 7832 states and 21886 transitions. [2019-01-01 01:00:41,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 01:00:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 7832 states and 21886 transitions. [2019-01-01 01:00:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-01-01 01:00:41,251 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:41,251 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:41,251 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:41,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:41,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1530247818, now seen corresponding path program 1 times [2019-01-01 01:00:41,253 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:41,254 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-01 01:00:41,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 01:00:41,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 01:00:41,649 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 01:00:41,654 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 01:00:41,654 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:41,683 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:41,690 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:41,690 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-01-01 01:00:41,713 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 01:00:41,726 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 01:00:41,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 01:00:41,735 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 01:00:41,740 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 01:00:41,741 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2019-01-01 01:00:41,787 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 01:00:41,787 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-01 01:00:41,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 01:00:41,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 01:00:41,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 01:00:41,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 01:00:41,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 01:00:41,792 INFO L87 Difference]: Start difference. First operand 7832 states and 21886 transitions. Second operand 6 states. [2019-01-01 01:00:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 01:00:43,025 INFO L93 Difference]: Finished difference Result 12239 states and 33799 transitions. [2019-01-01 01:00:43,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-01 01:00:43,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2019-01-01 01:00:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 01:00:43,050 INFO L225 Difference]: With dead ends: 12239 [2019-01-01 01:00:43,051 INFO L226 Difference]: Without dead ends: 12239 [2019-01-01 01:00:43,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 01:00:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12239 states. [2019-01-01 01:00:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12239 to 10119. [2019-01-01 01:00:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10119 states. [2019-01-01 01:00:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10119 states to 10119 states and 28458 transitions. [2019-01-01 01:00:43,290 INFO L78 Accepts]: Start accepts. Automaton has 10119 states and 28458 transitions. Word has length 56 [2019-01-01 01:00:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 01:00:43,290 INFO L480 AbstractCegarLoop]: Abstraction has 10119 states and 28458 transitions. [2019-01-01 01:00:43,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 01:00:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10119 states and 28458 transitions. [2019-01-01 01:00:43,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-01-01 01:00:43,302 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 01:00:43,303 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 01:00:43,303 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 01:00:43,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 01:00:43,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1536045358, now seen corresponding path program 1 times [2019-01-01 01:00:43,304 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-01 01:00:43,304 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-01 01:00:43,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 01:00:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 01:00:44,635 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-01 01:00:44,636 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 01:00:44,639 INFO L168 Benchmark]: Toolchain (without parser) took 23260.00 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 328.7 MB). Free memory was 945.8 MB in the beginning and 844.3 MB in the end (delta: 101.5 MB). Peak memory consumption was 430.3 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:44,641 INFO L168 Benchmark]: CDTParser took 0.20 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 01:00:44,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1750.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1000.0 MB in the end (delta: -54.1 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:44,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1000.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 01:00:44,643 INFO L168 Benchmark]: Boogie Preprocessor took 100.36 ms. Allocated memory is still 1.2 GB. Free memory was 1000.0 MB in the beginning and 993.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:44,643 INFO L168 Benchmark]: RCFGBuilder took 1492.73 ms. Allocated memory is still 1.2 GB. Free memory was 993.2 MB in the beginning and 947.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:44,648 INFO L168 Benchmark]: TraceAbstraction took 19782.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.1 MB). Free memory was 947.8 MB in the beginning and 844.3 MB in the end (delta: 103.5 MB). Peak memory consumption was 288.6 MB. Max. memory is 11.5 GB. [2019-01-01 01:00:44,659 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1750.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1000.0 MB in the end (delta: -54.1 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 129.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1000.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 100.36 ms. Allocated memory is still 1.2 GB. Free memory was 1000.0 MB in the beginning and 993.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1492.73 ms. Allocated memory is still 1.2 GB. Free memory was 993.2 MB in the beginning and 947.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19782.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.1 MB). Free memory was 947.8 MB in the beginning and 844.3 MB in the end (delta: 103.5 MB). Peak memory consumption was 288.6 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...