./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f3e231c5b77f9ab25b28372001f508e3e47c051 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f3e231c5b77f9ab25b28372001f508e3e47c051 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_26 input size 33 context size 33 output size 33 --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:40:44,337 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:40:44,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:40:44,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:40:44,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:40:44,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:40:44,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:40:44,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:40:44,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:40:44,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:40:44,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:40:44,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:40:44,348 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:40:44,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:40:44,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:40:44,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:40:44,350 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:40:44,351 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:40:44,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:40:44,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:40:44,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:40:44,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:40:44,355 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:40:44,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:40:44,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:40:44,355 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:40:44,356 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:40:44,356 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:40:44,357 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:40:44,357 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:40:44,357 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:40:44,358 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:40:44,358 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:40:44,358 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:40:44,359 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:40:44,359 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:40:44,359 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 11:40:44,366 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:40:44,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:40:44,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 11:40:44,366 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 11:40:44,367 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:40:44,367 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:40:44,367 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 11:40:44,367 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:40:44,367 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:40:44,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:40:44,367 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:40:44,368 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:40:44,369 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 11:40:44,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:40:44,369 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 11:40:44,369 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:40:44,369 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 11:40:44,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:40:44,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:40:44,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:40:44,370 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 11:40:44,370 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 11:40:44,370 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:40:44,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 11:40:44,370 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f3e231c5b77f9ab25b28372001f508e3e47c051 [2018-12-08 11:40:44,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:40:44,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:40:44,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:40:44,400 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:40:44,400 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:40:44,400 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/../../sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2018-12-08 11:40:44,435 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/04706303f/42a26ed2588f4c4499ecffbfd78a282a/FLAGc5a25eafc [2018-12-08 11:40:44,901 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:40:44,901 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2018-12-08 11:40:44,908 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/04706303f/42a26ed2588f4c4499ecffbfd78a282a/FLAGc5a25eafc [2018-12-08 11:40:44,916 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/04706303f/42a26ed2588f4c4499ecffbfd78a282a [2018-12-08 11:40:44,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:40:44,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:40:44,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:40:44,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:40:44,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:40:44,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:40:44" (1/1) ... [2018-12-08 11:40:44,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66dc21f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:44, skipping insertion in model container [2018-12-08 11:40:44,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:40:44" (1/1) ... [2018-12-08 11:40:44,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:40:44,953 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:40:45,112 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:40:45,153 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:40:45,180 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:40:45,200 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:40:45,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45 WrapperNode [2018-12-08 11:40:45,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:40:45,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:40:45,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:40:45,201 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:40:45,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:40:45,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:40:45,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:40:45,220 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:40:45,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... [2018-12-08 11:40:45,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:40:45,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:40:45,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:40:45,240 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:40:45,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:40:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2018-12-08 11:40:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2018-12-08 11:40:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-08 11:40:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-08 11:40:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:40:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 11:40:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 11:40:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-12-08 11:40:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-12-08 11:40:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 11:40:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 11:40:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 11:40:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 11:40:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 11:40:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_append [2018-12-08 11:40:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_append [2018-12-08 11:40:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 11:40:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2018-12-08 11:40:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2018-12-08 11:40:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:40:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 11:40:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:40:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:40:45,496 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:40:45,496 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-08 11:40:45,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:40:45 BoogieIcfgContainer [2018-12-08 11:40:45,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:40:45,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 11:40:45,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 11:40:45,499 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 11:40:45,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:40:44" (1/3) ... [2018-12-08 11:40:45,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5805ab89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:40:45, skipping insertion in model container [2018-12-08 11:40:45,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:40:45" (2/3) ... [2018-12-08 11:40:45,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5805ab89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:40:45, skipping insertion in model container [2018-12-08 11:40:45,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:40:45" (3/3) ... [2018-12-08 11:40:45,501 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2018-12-08 11:40:45,507 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 11:40:45,512 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 11:40:45,521 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 11:40:45,538 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 11:40:45,538 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 11:40:45,538 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 11:40:45,538 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 11:40:45,538 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 11:40:45,539 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 11:40:45,539 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 11:40:45,539 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 11:40:45,539 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 11:40:45,549 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-08 11:40:45,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 11:40:45,553 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:40:45,553 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:40:45,555 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:40:45,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:40:45,558 INFO L82 PathProgramCache]: Analyzing trace with hash -800595804, now seen corresponding path program 1 times [2018-12-08 11:40:45,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:40:45,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:40:45,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:40:45,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:40:45,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:40:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:40:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-08 11:40:45,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:40:45,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 11:40:45,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 11:40:45,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 11:40:45,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:40:45,677 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-08 11:40:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:40:45,691 INFO L93 Difference]: Finished difference Result 93 states and 115 transitions. [2018-12-08 11:40:45,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 11:40:45,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 36 [2018-12-08 11:40:45,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:40:45,697 INFO L225 Difference]: With dead ends: 93 [2018-12-08 11:40:45,697 INFO L226 Difference]: Without dead ends: 39 [2018-12-08 11:40:45,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:40:45,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-08 11:40:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-08 11:40:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-08 11:40:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-12-08 11:40:45,723 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 36 [2018-12-08 11:40:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:40:45,724 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-12-08 11:40:45,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 11:40:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-12-08 11:40:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 11:40:45,725 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:40:45,725 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:40:45,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:40:45,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:40:45,726 INFO L82 PathProgramCache]: Analyzing trace with hash 746795704, now seen corresponding path program 1 times [2018-12-08 11:40:45,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:40:45,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:40:45,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:40:45,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:40:45,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:40:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:40:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-08 11:40:45,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:40:45,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 11:40:45,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 11:40:45,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 11:40:45,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 11:40:45,793 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 5 states. [2018-12-08 11:40:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:40:45,828 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-12-08 11:40:45,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 11:40:45,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-12-08 11:40:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:40:45,830 INFO L225 Difference]: With dead ends: 68 [2018-12-08 11:40:45,830 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 11:40:45,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 11:40:45,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 11:40:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-12-08 11:40:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-08 11:40:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-12-08 11:40:45,835 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 36 [2018-12-08 11:40:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:40:45,835 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-12-08 11:40:45,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 11:40:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-12-08 11:40:45,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 11:40:45,836 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:40:45,836 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:40:45,836 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:40:45,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:40:45,837 INFO L82 PathProgramCache]: Analyzing trace with hash -573414004, now seen corresponding path program 1 times [2018-12-08 11:40:45,837 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:40:45,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:40:45,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:40:45,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:40:45,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:40:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:40:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:40:46,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 11:40:46,409 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 11:40:46,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:40:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:40:46,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:40:46,481 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 6 treesize of output 5 [2018-12-08 11:40:46,482 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 11:40:46,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:40:46,486 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-08 11:40:49,848 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:40:49,850 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:40:49,851 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:40:49,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 42 [2018-12-08 11:40:49,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2018-12-08 11:40:49,854 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:40:49,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:40:49,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 11:40:49,876 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:35 [2018-12-08 11:40:51,973 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 22 [2018-12-08 11:40:54,038 WARN L180 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-12-08 11:40:54,041 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:40:54,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:40:54,049 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 11:40:54,049 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:31 [2018-12-08 11:40:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 7 refuted. 2 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:40:58,585 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 11:40:58,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 36 [2018-12-08 11:40:58,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-12-08 11:40:58,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-12-08 11:40:58,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1146, Unknown=11, NotChecked=0, Total=1260 [2018-12-08 11:40:58,587 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 36 states. [2018-12-08 11:40:59,008 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-12-08 11:41:00,660 WARN L180 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 37 [2018-12-08 11:41:02,156 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 37 [2018-12-08 11:41:04,867 WARN L180 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 56 [2018-12-08 11:41:07,615 WARN L180 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-12-08 11:41:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:41:07,864 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2018-12-08 11:41:07,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 11:41:07,865 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 46 [2018-12-08 11:41:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:41:07,867 INFO L225 Difference]: With dead ends: 69 [2018-12-08 11:41:07,867 INFO L226 Difference]: Without dead ends: 61 [2018-12-08 11:41:07,867 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=161, Invalid=1719, Unknown=12, NotChecked=0, Total=1892 [2018-12-08 11:41:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-08 11:41:07,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2018-12-08 11:41:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-08 11:41:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2018-12-08 11:41:07,874 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 46 [2018-12-08 11:41:07,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:41:07,874 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2018-12-08 11:41:07,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-12-08 11:41:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2018-12-08 11:41:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 11:41:07,875 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:41:07,875 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:41:07,875 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:41:07,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:41:07,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1201593358, now seen corresponding path program 1 times [2018-12-08 11:41:07,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:41:07,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:41:07,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:41:07,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:41:07,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:41:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:41:09,631 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2018-12-08 11:41:09,987 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-12-08 11:41:10,408 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2018-12-08 11:41:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:41:10,567 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 11:41:10,567 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 11:41:10,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:41:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:41:10,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:41:10,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 6 treesize of output 5 [2018-12-08 11:41:10,611 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:10,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:10,615 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2018-12-08 11:41:10,994 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 27 treesize of output 24 [2018-12-08 11:41:10,997 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2018-12-08 11:41:11,001 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,002 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-12-08 11:41:11,005 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,006 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,007 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,009 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2018-12-08 11:41:11,009 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,018 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,021 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-12-08 11:41:11,036 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-12-08 11:41:11,037 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,038 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,045 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2018-12-08 11:41:11,240 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 34 treesize of output 27 [2018-12-08 11:41:11,243 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,245 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 27 treesize of output 25 [2018-12-08 11:41:11,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,250 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,266 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 28 treesize of output 21 [2018-12-08 11:41:11,268 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,270 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 21 treesize of output 26 [2018-12-08 11:41:11,271 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,275 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,286 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:89, output treesize:63 [2018-12-08 11:41:11,373 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,376 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2018-12-08 11:41:11,378 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 20 treesize of output 19 [2018-12-08 11:41:11,379 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,384 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,397 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,400 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-12-08 11:41:11,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-12-08 11:41:11,402 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,408 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:11,418 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:92, output treesize:69 [2018-12-08 11:41:11,595 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 116 [2018-12-08 11:41:11,610 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 20 treesize of output 25 [2018-12-08 11:41:11,610 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,628 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 94 [2018-12-08 11:41:11,636 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:41:11,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 118 [2018-12-08 11:41:11,639 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,652 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,683 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,686 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2018-12-08 11:41:11,688 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 22 treesize of output 21 [2018-12-08 11:41:11,688 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,694 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,710 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 34 treesize of output 27 [2018-12-08 11:41:11,713 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:11,715 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 27 treesize of output 21 [2018-12-08 11:41:11,715 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,720 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:11,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:11,731 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:167, output treesize:89 [2018-12-08 11:41:13,846 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2018-12-08 11:41:13,866 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:13,867 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:13,867 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:41:13,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 56 [2018-12-08 11:41:13,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 52 [2018-12-08 11:41:13,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:41:13,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:41:13,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:13,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:93, output treesize:97 [2018-12-08 11:41:14,143 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:14,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:14,160 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:14,162 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:14,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:14,171 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:89, output treesize:65 [2018-12-08 11:41:15,104 WARN L180 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-12-08 11:41:16,156 WARN L180 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-12-08 11:41:17,117 WARN L180 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-12-08 11:41:17,123 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:17,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:17,585 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:17,633 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:17,884 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:17,912 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:18,080 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:18,110 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:18,324 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:18,468 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:18,621 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 5 dim-2 vars, End of recursive call: 11 dim-0 vars, and 1 xjuncts. [2018-12-08 11:41:18,621 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 11 variables, input treesize:3073, output treesize:11006 [2018-12-08 11:42:16,293 WARN L180 SmtUtils]: Spent 35.90 s on a formula simplification. DAG size of input: 753 DAG size of output: 132 [2018-12-08 11:42:16,319 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:16,329 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:16,339 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:16,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:16,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:16,389 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:16,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 79 [2018-12-08 11:42:16,390 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:17,250 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:17,294 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:17,584 INFO L303 Elim1Store]: Index analysis took 383 ms [2018-12-08 11:42:17,585 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7899 treesize of output 5814 [2018-12-08 11:42:18,900 WARN L180 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 144 DAG size of output: 111 [2018-12-08 11:42:18,933 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 11:42:18,945 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-12-08 11:42:19,007 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-12-08 11:42:19,008 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:19,106 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:19,185 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:19,631 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:19,631 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:42:19,779 INFO L303 Elim1Store]: Index analysis took 168 ms [2018-12-08 11:42:19,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 5780 treesize of output 5006 [2018-12-08 11:42:23,208 WARN L180 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 172 DAG size of output: 118 [2018-12-08 11:42:23,222 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 36 treesize of output 35 [2018-12-08 11:42:23,222 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:23,762 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:23,772 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:23,778 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:23,786 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:23,797 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:24,023 INFO L303 Elim1Store]: Index analysis took 291 ms [2018-12-08 11:42:24,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 4734 treesize of output 6207 [2018-12-08 11:42:24,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 53 [2018-12-08 11:42:24,127 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-08 11:42:24,127 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:24,788 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:24,865 INFO L303 Elim1Store]: Index analysis took 131 ms [2018-12-08 11:42:24,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 151 [2018-12-08 11:42:24,878 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-12-08 11:42:25,399 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:25,404 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:25,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 91 [2018-12-08 11:42:25,426 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:26,149 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:26,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:26,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 115 [2018-12-08 11:42:26,195 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:26,939 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:26,944 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:26,951 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:26,957 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:26,965 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:27,023 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 98 [2018-12-08 11:42:27,024 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:27,412 INFO L267 ElimStorePlain]: Start of recursive call 10: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-08 11:42:27,959 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:27,967 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:27,972 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:27,980 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,097 INFO L303 Elim1Store]: Index analysis took 149 ms [2018-12-08 11:42:28,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 5223 treesize of output 5729 [2018-12-08 11:42:28,106 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 469 treesize of output 468 [2018-12-08 11:42:28,106 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:28,314 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:28,332 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,340 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,347 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,359 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,488 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,488 INFO L303 Elim1Store]: Index analysis took 173 ms [2018-12-08 11:42:28,489 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 5232 treesize of output 5753 [2018-12-08 11:42:28,498 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 485 treesize of output 932 [2018-12-08 11:42:28,498 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:28,717 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:28,727 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,732 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,737 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,741 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,855 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:28,856 INFO L303 Elim1Store]: Index analysis took 137 ms [2018-12-08 11:42:28,857 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 5229 treesize of output 5750 [2018-12-08 11:42:28,864 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 485 treesize of output 932 [2018-12-08 11:42:28,864 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:29,078 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:29,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,097 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,102 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,115 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,278 INFO L303 Elim1Store]: Index analysis took 199 ms [2018-12-08 11:42:29,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 5246 treesize of output 5752 [2018-12-08 11:42:29,286 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 469 treesize of output 468 [2018-12-08 11:42:29,286 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:29,543 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:29,561 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,565 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,571 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,576 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,700 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:29,700 INFO L303 Elim1Store]: Index analysis took 156 ms [2018-12-08 11:42:29,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 5274 treesize of output 5767 [2018-12-08 11:42:29,708 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 485 treesize of output 932 [2018-12-08 11:42:29,709 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:29,976 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:31,324 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-12-08 11:42:32,586 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-12-08 11:42:33,821 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-12-08 11:42:35,140 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,145 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,151 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,151 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:42:35,156 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,159 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,160 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:42:35,164 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,290 INFO L303 Elim1Store]: Index analysis took 158 ms [2018-12-08 11:42:35,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 4835 treesize of output 1682 [2018-12-08 11:42:35,298 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 11:42:35,304 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-12-08 11:42:35,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-12-08 11:42:35,321 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:35,350 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:35,373 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:35,599 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,604 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,608 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,612 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:35,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2097 treesize of output 869 [2018-12-08 11:42:36,326 WARN L180 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 104 [2018-12-08 11:42:36,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 55 [2018-12-08 11:42:36,345 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-12-08 11:42:36,497 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,498 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:42:36,501 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,506 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,511 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,526 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,530 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,640 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:42:36,652 INFO L303 Elim1Store]: Index analysis took 163 ms [2018-12-08 11:42:36,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 596 treesize of output 677 [2018-12-08 11:42:36,660 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:42:36,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 130 [2018-12-08 11:42:36,677 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:36,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,786 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,789 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,795 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,807 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:36,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 550 treesize of output 463 [2018-12-08 11:42:36,833 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 309 [2018-12-08 11:42:36,835 INFO L267 ElimStorePlain]: Start of recursive call 35: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 11:42:37,020 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 11 treesize of output 1 [2018-12-08 11:42:37,020 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:37,191 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:37,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 377 treesize of output 381 [2018-12-08 11:42:37,475 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 11:42:37,477 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_19 input size 90 context size 90 output size 90 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) 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:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-08 11:42:37,485 INFO L168 Benchmark]: Toolchain (without parser) took 112565.79 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 255.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -112.9 MB). Peak memory consumption was 434.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:42:37,485 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:42:37,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-12-08 11:42:37,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:42:37,486 INFO L168 Benchmark]: Boogie Preprocessor took 20.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 11:42:37,486 INFO L168 Benchmark]: RCFGBuilder took 256.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2018-12-08 11:42:37,486 INFO L168 Benchmark]: TraceAbstraction took 111986.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 117.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 426.2 MB. Max. memory is 11.5 GB. [2018-12-08 11:42:37,488 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 111986.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 117.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 426.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_19 input size 90 context size 90 output size 90 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_19 input size 90 context size 90 output size 90: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:42:38,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:42:38,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:42:38,705 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:42:38,705 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:42:38,706 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:42:38,707 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:42:38,707 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:42:38,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:42:38,709 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:42:38,709 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:42:38,709 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:42:38,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:42:38,710 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:42:38,710 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:42:38,711 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:42:38,711 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:42:38,712 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:42:38,713 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:42:38,714 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:42:38,714 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:42:38,715 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:42:38,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:42:38,716 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:42:38,716 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:42:38,717 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:42:38,717 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:42:38,717 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:42:38,718 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:42:38,718 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:42:38,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:42:38,719 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:42:38,719 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:42:38,719 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:42:38,720 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:42:38,720 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:42:38,720 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 11:42:38,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:42:38,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:42:38,728 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 11:42:38,728 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 11:42:38,728 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:42:38,728 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 11:42:38,729 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 11:42:38,729 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 11:42:38,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:42:38,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:42:38,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 11:42:38,731 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 11:42:38,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:42:38,731 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 11:42:38,731 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 11:42:38,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f3e231c5b77f9ab25b28372001f508e3e47c051 [2018-12-08 11:42:38,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:42:38,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:42:38,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:42:38,762 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:42:38,763 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:42:38,763 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/../../sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2018-12-08 11:42:38,807 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/f072abe76/69742f4532a943218befaffe4b51d40a/FLAG92f8ae5c0 [2018-12-08 11:42:39,309 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:42:39,309 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/sv-benchmarks/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2018-12-08 11:42:39,315 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/f072abe76/69742f4532a943218befaffe4b51d40a/FLAG92f8ae5c0 [2018-12-08 11:42:39,323 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/data/f072abe76/69742f4532a943218befaffe4b51d40a [2018-12-08 11:42:39,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:42:39,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:42:39,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:42:39,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:42:39,329 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:42:39,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33327ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39, skipping insertion in model container [2018-12-08 11:42:39,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:42:39,360 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:42:39,527 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:42:39,535 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:42:39,612 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:42:39,639 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:42:39,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39 WrapperNode [2018-12-08 11:42:39,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:42:39,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:42:39,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:42:39,640 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:42:39,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:42:39,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:42:39,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:42:39,660 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:42:39,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... [2018-12-08 11:42:39,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:42:39,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:42:39,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:42:39,683 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:42:39,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:42:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2018-12-08 11:42:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2018-12-08 11:42:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-08 11:42:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-08 11:42:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:42:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 11:42:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-12-08 11:42:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-12-08 11:42:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 11:42:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 11:42:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 11:42:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 11:42:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 11:42:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_append [2018-12-08 11:42:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_append [2018-12-08 11:42:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 11:42:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2018-12-08 11:42:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2018-12-08 11:42:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:42:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 11:42:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 11:42:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:42:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:42:40,151 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:42:40,151 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-08 11:42:40,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:42:40 BoogieIcfgContainer [2018-12-08 11:42:40,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:42:40,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 11:42:40,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 11:42:40,153 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 11:42:40,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:42:39" (1/3) ... [2018-12-08 11:42:40,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7c208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:42:40, skipping insertion in model container [2018-12-08 11:42:40,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:42:39" (2/3) ... [2018-12-08 11:42:40,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7c208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:42:40, skipping insertion in model container [2018-12-08 11:42:40,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:42:40" (3/3) ... [2018-12-08 11:42:40,155 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2018-12-08 11:42:40,161 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 11:42:40,165 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 11:42:40,173 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 11:42:40,189 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 11:42:40,189 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 11:42:40,189 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 11:42:40,189 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 11:42:40,189 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 11:42:40,190 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 11:42:40,190 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 11:42:40,190 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 11:42:40,190 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 11:42:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-08 11:42:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 11:42:40,202 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:42:40,203 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:42:40,204 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:42:40,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:42:40,207 INFO L82 PathProgramCache]: Analyzing trace with hash -800595804, now seen corresponding path program 1 times [2018-12-08 11:42:40,210 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 11:42:40,210 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 11:42:40,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:42:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:42:40,292 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:42:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-08 11:42:40,308 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:42:40,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:42:40,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 11:42:40,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 11:42:40,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 11:42:40,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:42:40,328 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-08 11:42:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:42:40,345 INFO L93 Difference]: Finished difference Result 93 states and 115 transitions. [2018-12-08 11:42:40,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 11:42:40,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 36 [2018-12-08 11:42:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:42:40,352 INFO L225 Difference]: With dead ends: 93 [2018-12-08 11:42:40,352 INFO L226 Difference]: Without dead ends: 39 [2018-12-08 11:42:40,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:42:40,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-08 11:42:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-08 11:42:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-08 11:42:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-12-08 11:42:40,381 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 36 [2018-12-08 11:42:40,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:42:40,382 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-12-08 11:42:40,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 11:42:40,382 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-12-08 11:42:40,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 11:42:40,384 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:42:40,384 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:42:40,384 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:42:40,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:42:40,384 INFO L82 PathProgramCache]: Analyzing trace with hash 746795704, now seen corresponding path program 1 times [2018-12-08 11:42:40,385 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 11:42:40,385 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 11:42:40,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:42:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:42:40,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:42:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:42:40,507 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:42:40,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:42:40,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 11:42:40,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 11:42:40,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 11:42:40,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 11:42:40,510 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 5 states. [2018-12-08 11:42:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:42:40,563 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-12-08 11:42:40,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 11:42:40,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-12-08 11:42:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:42:40,564 INFO L225 Difference]: With dead ends: 68 [2018-12-08 11:42:40,565 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 11:42:40,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 11:42:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 11:42:40,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-12-08 11:42:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-08 11:42:40,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-12-08 11:42:40,570 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 36 [2018-12-08 11:42:40,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:42:40,570 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-12-08 11:42:40,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 11:42:40,570 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-12-08 11:42:40,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 11:42:40,571 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:42:40,571 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:42:40,571 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:42:40,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:42:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash -573414004, now seen corresponding path program 1 times [2018-12-08 11:42:40,572 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 11:42:40,572 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 11:42:40,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:42:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:42:40,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:42:40,801 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-12-08 11:42:40,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-12-08 11:42:40,804 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:40,806 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:40,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:40,811 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-12-08 11:42:42,992 WARN L180 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 65 [2018-12-08 11:42:42,994 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:43,117 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:45,665 INFO L303 Elim1Store]: Index analysis took 155 ms [2018-12-08 11:42:45,666 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 23 treesize of output 18 [2018-12-08 11:42:46,067 INFO L303 Elim1Store]: Index analysis took 400 ms [2018-12-08 11:42:46,068 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 18 treesize of output 7 [2018-12-08 11:42:46,068 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:46,148 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:48,146 INFO L303 Elim1Store]: Index analysis took 223 ms [2018-12-08 11:42:48,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2018-12-08 11:42:48,170 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-08 11:42:48,191 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 14 treesize of output 15 [2018-12-08 11:42:48,191 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:48,295 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:48,588 INFO L303 Elim1Store]: Index analysis took 137 ms [2018-12-08 11:42:48,589 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 27 [2018-12-08 11:42:48,601 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 8 treesize of output 7 [2018-12-08 11:42:48,601 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:48,703 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:49,011 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:49,047 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2018-12-08 11:42:49,055 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2018-12-08 11:42:49,079 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 26 treesize of output 26 [2018-12-08 11:42:49,079 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:49,147 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:49,464 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 26 treesize of output 22 [2018-12-08 11:42:49,493 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 19 treesize of output 22 [2018-12-08 11:42:49,493 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:49,548 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:49,981 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:50,576 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-12-08 11:42:50,627 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 14 treesize of output 15 [2018-12-08 11:42:50,628 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:50,815 INFO L303 Elim1Store]: Index analysis took 106 ms [2018-12-08 11:42:50,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 40 [2018-12-08 11:42:50,841 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 31 treesize of output 19 [2018-12-08 11:42:50,842 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 26 [2018-12-08 11:42:51,078 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2018-12-08 11:42:51,263 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-08 11:42:51,407 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-08 11:42:51,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2018-12-08 11:42:51,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-08 11:42:51,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-12-08 11:42:51,686 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,695 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 27 [2018-12-08 11:42:51,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 8 treesize of output 7 [2018-12-08 11:42:51,734 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,745 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,758 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,768 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2018-12-08 11:42:51,773 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2018-12-08 11:42:51,778 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 26 treesize of output 26 [2018-12-08 11:42:51,778 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,794 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,831 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 26 treesize of output 22 [2018-12-08 11:42:51,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 19 treesize of output 22 [2018-12-08 11:42:51,846 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,858 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,873 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:51,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-08 11:42:51,939 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 6 variables, input treesize:119, output treesize:171 [2018-12-08 11:42:52,076 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2018-12-08 11:42:52,160 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 33 [2018-12-08 11:42:52,164 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 19 treesize of output 12 [2018-12-08 11:42:52,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-12-08 11:42:52,185 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,192 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 37 [2018-12-08 11:42:52,220 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 33 treesize of output 19 [2018-12-08 11:42:52,220 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,238 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 19 treesize of output 12 [2018-12-08 11:42:52,239 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,253 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 22 treesize of output 7 [2018-12-08 11:42:52,253 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,258 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,263 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 3 variables, input treesize:90, output treesize:16 [2018-12-08 11:42:52,289 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 15 treesize of output 11 [2018-12-08 11:42:52,291 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 11 treesize of output 3 [2018-12-08 11:42:52,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,292 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:52,295 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-12-08 11:42:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-08 11:42:52,324 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:42:52,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:42:52,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-08 11:42:52,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 11:42:52,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 11:42:52,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-12-08 11:42:52,327 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 12 states. [2018-12-08 11:42:56,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:42:56,680 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-12-08 11:42:56,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 11:42:56,680 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2018-12-08 11:42:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:42:56,681 INFO L225 Difference]: With dead ends: 54 [2018-12-08 11:42:56,681 INFO L226 Difference]: Without dead ends: 52 [2018-12-08 11:42:56,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2018-12-08 11:42:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-08 11:42:56,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2018-12-08 11:42:56,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-08 11:42:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2018-12-08 11:42:56,685 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 46 [2018-12-08 11:42:56,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:42:56,685 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2018-12-08 11:42:56,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 11:42:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-12-08 11:42:56,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 11:42:56,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:42:56,686 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:42:56,686 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:42:56,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:42:56,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1201593358, now seen corresponding path program 1 times [2018-12-08 11:42:56,687 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 11:42:56,687 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b773dc2-6659-42b4-bc99-634b8aa5ca82/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 11:42:56,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:42:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:42:57,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:42:57,165 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 6 treesize of output 5 [2018-12-08 11:42:57,166 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,171 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-08 11:42:57,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-12-08 11:42:57,266 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-12-08 11:42:57,266 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,276 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-12-08 11:42:57,343 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 23 treesize of output 18 [2018-12-08 11:42:57,348 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:57,351 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 18 treesize of output 12 [2018-12-08 11:42:57,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,384 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 11 treesize of output 8 [2018-12-08 11:42:57,386 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 8 treesize of output 7 [2018-12-08 11:42:57,387 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,389 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,405 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,405 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:62, output treesize:43 [2018-12-08 11:42:57,464 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:57,476 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-12-08 11:42:57,480 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-12-08 11:42:57,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,526 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:57,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2018-12-08 11:42:57,541 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 20 treesize of output 19 [2018-12-08 11:42:57,541 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,550 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:57,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:57,572 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:55 [2018-12-08 11:42:58,224 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:58,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:58,416 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:58,448 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 67 [2018-12-08 11:42:58,457 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 12 treesize of output 11 [2018-12-08 11:42:58,457 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,511 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:58,556 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 64 [2018-12-08 11:42:58,564 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:58,571 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 32 treesize of output 49 [2018-12-08 11:42:58,571 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,591 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,606 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,666 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:58,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 104 [2018-12-08 11:42:58,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 31 treesize of output 32 [2018-12-08 11:42:58,692 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,736 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:58,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2018-12-08 11:42:58,760 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:58,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 97 [2018-12-08 11:42:58,761 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,792 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,823 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:58,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:58,858 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:163, output treesize:82 [2018-12-08 11:42:59,070 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:59,072 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:59,074 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:42:59,074 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 52 [2018-12-08 11:42:59,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2018-12-08 11:42:59,079 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 11:42:59,095 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:42:59,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:59,135 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:86, output treesize:85 [2018-12-08 11:42:59,596 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:59,666 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:59,887 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:42:59,919 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:00,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:00,081 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:110, output treesize:84 [2018-12-08 11:43:02,563 WARN L180 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 45 [2018-12-08 11:43:05,187 WARN L180 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 49 [2018-12-08 11:43:08,042 WARN L180 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 49 [2018-12-08 11:43:08,048 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:13,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:23,047 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:24,461 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:35,404 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:38,943 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:45,838 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:47,496 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:43:58,094 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:44:06,229 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 11:44:12,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2018-12-08 11:44:12,791 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 10 variables, input treesize:3009, output treesize:10942 [2018-12-08 11:44:44,041 WARN L180 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 95 [2018-12-08 11:48:50,628 WARN L180 SmtUtils]: Spent 4.11 m on a formula simplification. DAG size of input: 754 DAG size of output: 133 [2018-12-08 11:48:53,144 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:48:53,859 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:48:54,321 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:48:55,168 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:48:55,170 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:48:55,170 INFO L303 Elim1Store]: Index analysis took 4541 ms [2018-12-08 11:48:55,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 61 [2018-12-08 11:48:55,171 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 11:49:25,653 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:49:26,808 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:49:37,151 INFO L303 Elim1Store]: Index analysis took 14394 ms [2018-12-08 11:49:37,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2900 treesize of output 2990 [2018-12-08 11:49:44,459 WARN L180 SmtUtils]: Spent 7.31 s on a formula simplification that was a NOOP. DAG size: 109 [2018-12-08 11:49:45,533 INFO L303 Elim1Store]: Index analysis took 1073 ms [2018-12-08 11:49:45,534 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 11:49:49,617 INFO L303 Elim1Store]: Index analysis took 4082 ms [2018-12-08 11:49:49,618 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-12-08 11:49:56,280 INFO L303 Elim1Store]: Index analysis took 6660 ms [2018-12-08 11:49:56,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-12-08 11:49:56,281 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 11:50:04,702 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:50:14,062 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:50:38,034 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:50:38,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:50:38,880 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:50:38,881 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:50:46,833 INFO L303 Elim1Store]: Index analysis took 10062 ms [2018-12-08 11:50:46,834 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2681 treesize of output 2848 [2018-12-08 11:50:53,445 WARN L180 SmtUtils]: Spent 6.61 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2018-12-08 11:50:53,742 INFO L303 Elim1Store]: Index analysis took 296 ms [2018-12-08 11:50:53,743 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 64 treesize of output 63 [2018-12-08 11:50:53,743 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 11:51:11,166 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:51:11,543 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:51:11,799 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:51:19,109 INFO L303 Elim1Store]: Index analysis took 8288 ms [2018-12-08 11:51:19,110 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2549 treesize of output 3692 [2018-12-08 11:51:24,841 INFO L303 Elim1Store]: Index analysis took 5729 ms [2018-12-08 11:51:24,842 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-12-08 11:51:30,075 INFO L303 Elim1Store]: Index analysis took 5232 ms [2018-12-08 11:51:30,076 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-12-08 11:51:30,076 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 11:51:34,160 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:51:41,473 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:51:41,823 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:51:42,630 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:51:46,384 INFO L303 Elim1Store]: Index analysis took 6022 ms [2018-12-08 11:51:46,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3041 treesize of output 3160 [2018-12-08 11:51:47,172 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:51:47,599 INFO L303 Elim1Store]: Index analysis took 1213 ms [2018-12-08 11:51:47,600 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 1938 treesize of output 972 [2018-12-08 11:51:47,600 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-08 11:51:51,121 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:51:53,681 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:51:56,067 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:51:59,834 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:52:09,161 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:09,237 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:09,237 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:52:09,391 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:09,392 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:52:11,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:18,360 INFO L303 Elim1Store]: Index analysis took 9450 ms [2018-12-08 11:52:18,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5522 treesize of output 2197 [2018-12-08 11:52:40,043 WARN L180 SmtUtils]: Spent 21.68 s on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2018-12-08 11:52:40,210 INFO L303 Elim1Store]: Index analysis took 166 ms [2018-12-08 11:52:40,210 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 11:52:40,297 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-12-08 11:52:41,064 INFO L303 Elim1Store]: Index analysis took 766 ms [2018-12-08 11:52:41,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-12-08 11:52:41,065 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 11:52:42,973 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:52:43,684 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 11:52:47,763 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:47,849 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:47,883 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:47,884 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:52:48,053 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:51,296 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:52:52,387 INFO L303 Elim1Store]: Index analysis took 4967 ms [2018-12-08 11:52:52,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2139 treesize of output 1588 [2018-12-08 11:53:07,028 WARN L180 SmtUtils]: Spent 14.64 s on a formula simplification. DAG size of input: 168 DAG size of output: 101 [2018-12-08 11:53:07,229 INFO L303 Elim1Store]: Index analysis took 200 ms [2018-12-08 11:53:07,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 43 [2018-12-08 11:53:07,275 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-12-08 11:53:10,404 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:10,451 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:10,451 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:10,494 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:10,760 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:11,069 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:11,102 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:11,799 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:11,886 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:13,388 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:13,389 INFO L303 Elim1Store]: Index analysis took 3271 ms [2018-12-08 11:53:13,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1401 treesize of output 1416 [2018-12-08 11:53:13,669 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:13,746 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:14,284 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:14,287 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:14,956 INFO L303 Elim1Store]: Index analysis took 1562 ms [2018-12-08 11:53:15,016 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 271 treesize of output 183 [2018-12-08 11:53:15,018 INFO L267 ElimStorePlain]: Start of recursive call 21: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-12-08 11:53:19,561 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:19,640 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:19,681 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:19,824 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:20,256 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 11:53:20,257 INFO L303 Elim1Store]: Index analysis took 866 ms [2018-12-08 11:53:20,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1408 treesize of output 1186 [2018-12-08 11:53:20,313 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 5 treesize of output 1 [2018-12-08 11:53:20,313 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-08 11:53:22,684 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:22,685 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:22,686 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 11:53:22,687 INFO L303 Elim1Store]: Index analysis took 108 ms [2018-12-08 11:53:22,688 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1034 treesize of output 1040 [2018-12-08 11:53:22,979 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 11:53:22,981 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_26 input size 33 context size 33 output size 33 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) 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:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-08 11:53:22,986 INFO L168 Benchmark]: Toolchain (without parser) took 643660.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 938.0 MB in the beginning and 882.3 MB in the end (delta: 55.7 MB). Peak memory consumption was 346.4 MB. Max. memory is 11.5 GB. [2018-12-08 11:53:22,987 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:53:22,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-12-08 11:53:22,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:53:22,988 INFO L168 Benchmark]: Boogie Preprocessor took 23.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:53:22,988 INFO L168 Benchmark]: RCFGBuilder took 468.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2018-12-08 11:53:22,989 INFO L168 Benchmark]: TraceAbstraction took 642833.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 882.3 MB in the end (delta: 202.3 MB). Peak memory consumption was 348.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:53:22,990 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 468.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 642833.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 882.3 MB in the end (delta: 202.3 MB). Peak memory consumption was 348.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_26 input size 33 context size 33 output size 33 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_26 input size 33 context size 33 output size 33: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...