./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/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 c69389479aaa51869578ea93cca3b02df528e19e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/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 c69389479aaa51869578ea93cca3b02df528e19e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_36 |__ldv_list_add_#in~new.offset| __ldv_list_add_~next.offset) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 16:05:40,893 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 16:05:40,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 16:05:40,903 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 16:05:40,904 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 16:05:40,904 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 16:05:40,905 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 16:05:40,906 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 16:05:40,908 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 16:05:40,908 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 16:05:40,909 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 16:05:40,909 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 16:05:40,910 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 16:05:40,910 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 16:05:40,911 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 16:05:40,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 16:05:40,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 16:05:40,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 16:05:40,914 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 16:05:40,915 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 16:05:40,916 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 16:05:40,917 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 16:05:40,918 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 16:05:40,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 16:05:40,919 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 16:05:40,919 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 16:05:40,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 16:05:40,920 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 16:05:40,920 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 16:05:40,921 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 16:05:40,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 16:05:40,921 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 16:05:40,922 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 16:05:40,922 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 16:05:40,922 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 16:05:40,923 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 16:05:40,923 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 16:05:40,930 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 16:05:40,930 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 16:05:40,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 16:05:40,930 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 16:05:40,931 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 16:05:40,931 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 16:05:40,931 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 16:05:40,931 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 16:05:40,932 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 16:05:40,933 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 16:05:40,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 16:05:40,933 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 16:05:40,933 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 16:05:40,933 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 16:05:40,933 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 16:05:40,933 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 16:05:40,934 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 16:05:40,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 16:05:40,935 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_249348bb-3048-46c2-bf74-5f95914a547d/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 -> c69389479aaa51869578ea93cca3b02df528e19e [2018-11-23 16:05:40,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 16:05:40,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 16:05:40,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 16:05:40,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 16:05:40,972 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 16:05:40,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i [2018-11-23 16:05:41,014 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/ca151bc6a/526073738e3a4f23b8a130fbe248297e/FLAG39ad52d14 [2018-11-23 16:05:41,407 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 16:05:41,407 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i [2018-11-23 16:05:41,418 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/ca151bc6a/526073738e3a4f23b8a130fbe248297e/FLAG39ad52d14 [2018-11-23 16:05:41,790 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/ca151bc6a/526073738e3a4f23b8a130fbe248297e [2018-11-23 16:05:41,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 16:05:41,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 16:05:41,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 16:05:41,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 16:05:41,800 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 16:05:41,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:41" (1/1) ... [2018-11-23 16:05:41,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e06e0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:41, skipping insertion in model container [2018-11-23 16:05:41,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:41" (1/1) ... [2018-11-23 16:05:41,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 16:05:41,847 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 16:05:42,065 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:05:42,072 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 16:05:42,156 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:05:42,193 INFO L195 MainTranslator]: Completed translation [2018-11-23 16:05:42,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42 WrapperNode [2018-11-23 16:05:42,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 16:05:42,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 16:05:42,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 16:05:42,194 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 16:05:42,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 16:05:42,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 16:05:42,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 16:05:42,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 16:05:42,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... [2018-11-23 16:05:42,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 16:05:42,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 16:05:42,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 16:05:42,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 16:05:42,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/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 [2018-11-23 16:05:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 16:05:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 16:05:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-11-23 16:05:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-11-23 16:05:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 16:05:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-11-23 16:05:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-11-23 16:05:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 16:05:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 16:05:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 16:05:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2018-11-23 16:05:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2018-11-23 16:05:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-23 16:05:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2018-11-23 16:05:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2018-11-23 16:05:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 16:05:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 16:05:42,483 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 16:05:42,484 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 16:05:42,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:42 BoogieIcfgContainer [2018-11-23 16:05:42,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 16:05:42,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 16:05:42,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 16:05:42,486 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 16:05:42,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:05:41" (1/3) ... [2018-11-23 16:05:42,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2332f84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:42, skipping insertion in model container [2018-11-23 16:05:42,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:42" (2/3) ... [2018-11-23 16:05:42,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2332f84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:42, skipping insertion in model container [2018-11-23 16:05:42,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:42" (3/3) ... [2018-11-23 16:05:42,489 INFO L112 eAbstractionObserver]: Analyzing ICFG test_add_true-unreach-call_true-termination.i [2018-11-23 16:05:42,495 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 16:05:42,500 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 16:05:42,510 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 16:05:42,531 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 16:05:42,531 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 16:05:42,531 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 16:05:42,531 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 16:05:42,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 16:05:42,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 16:05:42,532 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 16:05:42,532 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 16:05:42,532 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 16:05:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-23 16:05:42,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 16:05:42,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:42,551 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] [2018-11-23 16:05:42,553 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:42,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:42,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1442632694, now seen corresponding path program 1 times [2018-11-23 16:05:42,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:42,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:42,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 16:05:42,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 16:05:42,715 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/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 [2018-11-23 16:05:42,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:42,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:42,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:05:42,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 16:05:42,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2018-11-23 16:05:42,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 16:05:42,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 16:05:42,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:42,816 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2018-11-23 16:05:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:42,849 INFO L93 Difference]: Finished difference Result 88 states and 101 transitions. [2018-11-23 16:05:42,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 16:05:42,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-23 16:05:42,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:42,859 INFO L225 Difference]: With dead ends: 88 [2018-11-23 16:05:42,859 INFO L226 Difference]: Without dead ends: 44 [2018-11-23 16:05:42,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-23 16:05:42,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-23 16:05:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 16:05:42,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-11-23 16:05:42,891 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 28 [2018-11-23 16:05:42,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:42,891 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-11-23 16:05:42,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 16:05:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-11-23 16:05:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 16:05:42,892 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:42,893 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 16:05:42,893 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:42,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:42,893 INFO L82 PathProgramCache]: Analyzing trace with hash 542758643, now seen corresponding path program 1 times [2018-11-23 16:05:42,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:42,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:42,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:42,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:42,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:43,148 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-11-23 16:05:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 16:05:43,199 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 16:05:43,199 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/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 [2018-11-23 16:05:43,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:43,240 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:43,278 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 7 treesize of output 5 [2018-11-23 16:05:43,287 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 [2018-11-23 16:05:43,288 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:43,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:43,299 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 7 treesize of output 5 [2018-11-23 16:05:43,301 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 [2018-11-23 16:05:43,302 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:43,306 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:43,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:43,310 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2018-11-23 16:05:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:05:43,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 16:05:43,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 14 [2018-11-23 16:05:43,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 16:05:43,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 16:05:43,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-23 16:05:43,438 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 14 states. [2018-11-23 16:05:43,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:43,948 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2018-11-23 16:05:43,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 16:05:43,948 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-11-23 16:05:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:43,950 INFO L225 Difference]: With dead ends: 89 [2018-11-23 16:05:43,950 INFO L226 Difference]: Without dead ends: 73 [2018-11-23 16:05:43,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2018-11-23 16:05:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-23 16:05:43,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 47. [2018-11-23 16:05:43,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-23 16:05:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-11-23 16:05:43,961 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 28 [2018-11-23 16:05:43,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:43,962 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-11-23 16:05:43,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 16:05:43,962 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-11-23 16:05:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 16:05:43,963 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:43,963 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, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:43,964 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:43,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash 685528796, now seen corresponding path program 1 times [2018-11-23 16:05:43,964 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:43,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:43,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:43,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:43,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 16:05:44,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:44,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-23 16:05:44,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 16:05:44,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 16:05:44,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-11-23 16:05:44,142 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 15 states. [2018-11-23 16:05:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:44,550 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-11-23 16:05:44,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-23 16:05:44,551 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-11-23 16:05:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:44,551 INFO L225 Difference]: With dead ends: 67 [2018-11-23 16:05:44,552 INFO L226 Difference]: Without dead ends: 60 [2018-11-23 16:05:44,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=746, Unknown=0, NotChecked=0, Total=870 [2018-11-23 16:05:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-23 16:05:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 48. [2018-11-23 16:05:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-23 16:05:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-11-23 16:05:44,561 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 42 [2018-11-23 16:05:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:44,561 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-11-23 16:05:44,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 16:05:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-11-23 16:05:44,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 16:05:44,562 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:44,562 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:44,562 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:44,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:44,563 INFO L82 PathProgramCache]: Analyzing trace with hash -2034835195, now seen corresponding path program 1 times [2018-11-23 16:05:44,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:44,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:44,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:44,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:44,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:44,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 16:05:44,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:44,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 16:05:44,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 16:05:44,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 16:05:44,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:44,619 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 4 states. [2018-11-23 16:05:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:44,633 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2018-11-23 16:05:44,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 16:05:44,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-23 16:05:44,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:44,635 INFO L225 Difference]: With dead ends: 56 [2018-11-23 16:05:44,635 INFO L226 Difference]: Without dead ends: 50 [2018-11-23 16:05:44,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-23 16:05:44,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-11-23 16:05:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-23 16:05:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2018-11-23 16:05:44,645 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 42 [2018-11-23 16:05:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:44,646 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2018-11-23 16:05:44,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 16:05:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-11-23 16:05:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-23 16:05:44,646 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:44,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:44,647 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:44,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:44,647 INFO L82 PathProgramCache]: Analyzing trace with hash -655030884, now seen corresponding path program 1 times [2018-11-23 16:05:44,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 16:05:44,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 16:05:44,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:44,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:44,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 16:05:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 16:05:45,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 16:05:45,653 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 16:05:45,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:45,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:45,696 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 9 treesize of output 12 [2018-11-23 16:05:45,699 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:45,703 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 16:05:45,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 16:05:45,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:45,717 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:45,717 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:41 [2018-11-23 16:05:45,752 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 25 treesize of output 20 [2018-11-23 16:05:45,753 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,767 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:45,767 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:45,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 27 treesize of output 21 [2018-11-23 16:05:45,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,781 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 20 treesize of output 18 [2018-11-23 16:05:45,783 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 [2018-11-23 16:05:45,783 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,787 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,799 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 17 treesize of output 15 [2018-11-23 16:05:45,800 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 [2018-11-23 16:05:45,800 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,804 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,810 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:53, output treesize:10 [2018-11-23 16:05:45,960 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 [2018-11-23 16:05:45,962 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 [2018-11-23 16:05:45,962 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:45,973 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2018-11-23 16:05:46,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2018-11-23 16:05:46,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 16:05:46,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:46,304 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 53 [2018-11-23 16:05:46,316 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 42 treesize of output 44 [2018-11-23 16:05:46,326 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:46,334 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 16 treesize of output 23 [2018-11-23 16:05:46,334 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:46,371 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:46,541 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-23 16:05:46,550 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:46,555 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:46,561 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 2 case distinctions, treesize of input 23 treesize of output 48 [2018-11-23 16:05:46,561 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-23 16:05:46,636 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:46,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:46,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2018-11-23 16:05:46,972 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 [2018-11-23 16:05:46,972 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:47,016 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:47,021 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:47,032 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-11-23 16:05:47,036 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-23 16:05:47,036 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:47,063 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:47,368 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 50 [2018-11-23 16:05:47,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2018-11-23 16:05:47,399 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:47,409 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 2 case distinctions, treesize of input 46 treesize of output 69 [2018-11-23 16:05:47,410 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-23 16:05:47,548 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:47,549 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 44 treesize of output 51 [2018-11-23 16:05:47,549 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:47,697 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:05:47,888 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 37 treesize of output 36 [2018-11-23 16:05:47,889 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:48,070 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 16:05:48,414 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 53 [2018-11-23 16:05:48,419 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 42 treesize of output 41 [2018-11-23 16:05:48,419 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:48,499 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:48,602 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:48,654 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-23 16:05:48,667 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-23 16:05:48,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:48,683 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 16:05:48,683 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 37 treesize of output 50 [2018-11-23 16:05:48,684 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:48,719 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:48,998 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 47 treesize of output 46 [2018-11-23 16:05:49,008 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:49,013 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:49,014 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 30 treesize of output 42 [2018-11-23 16:05:49,014 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:49,057 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:49,337 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 47 treesize of output 55 [2018-11-23 16:05:49,539 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 16:05:49,539 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_18 |__ldv_list_add_#in~new.offset| |__ldv_list_add_#in~next.base|) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:208) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:142) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) 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.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) [2018-11-23 16:05:49,543 INFO L168 Benchmark]: Toolchain (without parser) took 7748.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 270.3 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:49,543 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:05:49,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:49,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.01 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. [2018-11-23 16:05:49,545 INFO L168 Benchmark]: Boogie Preprocessor took 25.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:49,545 INFO L168 Benchmark]: RCFGBuilder took 242.79 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:49,546 INFO L168 Benchmark]: TraceAbstraction took 7057.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -29.4 MB). Peak memory consumption was 269.4 MB. Max. memory is 11.5 GB. [2018-11-23 16:05:49,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 397.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.01 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 25.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 242.79 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7057.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -29.4 MB). Peak memory consumption was 269.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_18 |__ldv_list_add_#in~new.offset| |__ldv_list_add_#in~next.base|) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_18 |__ldv_list_add_#in~new.offset| |__ldv_list_add_#in~next.base|): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 16:05:51,043 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 16:05:51,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 16:05:51,052 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 16:05:51,052 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 16:05:51,053 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 16:05:51,054 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 16:05:51,055 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 16:05:51,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 16:05:51,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 16:05:51,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 16:05:51,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 16:05:51,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 16:05:51,059 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 16:05:51,060 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 16:05:51,061 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 16:05:51,061 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 16:05:51,063 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 16:05:51,065 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 16:05:51,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 16:05:51,067 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 16:05:51,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 16:05:51,069 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 16:05:51,069 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 16:05:51,070 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 16:05:51,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 16:05:51,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 16:05:51,072 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 16:05:51,073 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 16:05:51,074 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 16:05:51,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 16:05:51,075 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 16:05:51,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 16:05:51,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 16:05:51,076 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 16:05:51,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 16:05:51,077 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 16:05:51,088 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 16:05:51,088 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 16:05:51,088 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 16:05:51,089 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 16:05:51,089 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 16:05:51,089 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 16:05:51,089 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 16:05:51,090 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 16:05:51,090 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 16:05:51,091 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 16:05:51,091 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 16:05:51,091 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 16:05:51,091 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 16:05:51,091 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 16:05:51,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 16:05:51,091 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 16:05:51,092 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 16:05:51,092 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 16:05:51,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 16:05:51,092 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 16:05:51,092 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 16:05:51,092 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 16:05:51,092 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 16:05:51,093 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 16:05:51,093 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 16:05:51,093 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 16:05:51,093 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_249348bb-3048-46c2-bf74-5f95914a547d/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 -> c69389479aaa51869578ea93cca3b02df528e19e [2018-11-23 16:05:51,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 16:05:51,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 16:05:51,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 16:05:51,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 16:05:51,141 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 16:05:51,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i [2018-11-23 16:05:51,183 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/c496aefc0/5c0d0e2553404aa08b393c77990c6ef5/FLAG04cf65037 [2018-11-23 16:05:51,652 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 16:05:51,653 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/sv-benchmarks/c/ldv-sets/test_add_true-unreach-call_true-termination.i [2018-11-23 16:05:51,662 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/c496aefc0/5c0d0e2553404aa08b393c77990c6ef5/FLAG04cf65037 [2018-11-23 16:05:51,674 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/data/c496aefc0/5c0d0e2553404aa08b393c77990c6ef5 [2018-11-23 16:05:51,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 16:05:51,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 16:05:51,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 16:05:51,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 16:05:51,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 16:05:51,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:51" (1/1) ... [2018-11-23 16:05:51,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3c34a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:51, skipping insertion in model container [2018-11-23 16:05:51,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:51" (1/1) ... [2018-11-23 16:05:51,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 16:05:51,724 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 16:05:51,979 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:05:51,992 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 16:05:52,085 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 16:05:52,115 INFO L195 MainTranslator]: Completed translation [2018-11-23 16:05:52,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52 WrapperNode [2018-11-23 16:05:52,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 16:05:52,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 16:05:52,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 16:05:52,116 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 16:05:52,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 16:05:52,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 16:05:52,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 16:05:52,141 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 16:05:52,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... [2018-11-23 16:05:52,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 16:05:52,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 16:05:52,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 16:05:52,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 16:05:52,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/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 [2018-11-23 16:05:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 16:05:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 16:05:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-11-23 16:05:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-11-23 16:05:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-11-23 16:05:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-11-23 16:05:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 16:05:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 16:05:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 16:05:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 16:05:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 16:05:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2018-11-23 16:05:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2018-11-23 16:05:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2018-11-23 16:05:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2018-11-23 16:05:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 16:05:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 16:05:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 16:05:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-23 16:05:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-23 16:05:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2018-11-23 16:05:52,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2018-11-23 16:05:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 16:05:52,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 16:05:52,551 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 16:05:52,551 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 16:05:52,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:52 BoogieIcfgContainer [2018-11-23 16:05:52,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 16:05:52,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 16:05:52,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 16:05:52,553 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 16:05:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:05:51" (1/3) ... [2018-11-23 16:05:52,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49601496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:52, skipping insertion in model container [2018-11-23 16:05:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:52" (2/3) ... [2018-11-23 16:05:52,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49601496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:52, skipping insertion in model container [2018-11-23 16:05:52,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:52" (3/3) ... [2018-11-23 16:05:52,556 INFO L112 eAbstractionObserver]: Analyzing ICFG test_add_true-unreach-call_true-termination.i [2018-11-23 16:05:52,562 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 16:05:52,566 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 16:05:52,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 16:05:52,595 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 16:05:52,595 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 16:05:52,596 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 16:05:52,596 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 16:05:52,596 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 16:05:52,596 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 16:05:52,596 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 16:05:52,596 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 16:05:52,596 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 16:05:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-23 16:05:52,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 16:05:52,611 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:52,612 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] [2018-11-23 16:05:52,613 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:52,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:52,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1941476234, now seen corresponding path program 1 times [2018-11-23 16:05:52,620 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 16:05:52,621 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:05:52,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:52,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 16:05:52,749 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:05:52,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:52,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 16:05:52,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 16:05:52,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 16:05:52,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:52,770 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2018-11-23 16:05:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:52,802 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2018-11-23 16:05:52,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 16:05:52,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-23 16:05:52,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:52,812 INFO L225 Difference]: With dead ends: 83 [2018-11-23 16:05:52,812 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 16:05:52,815 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 16:05:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-23 16:05:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 16:05:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-11-23 16:05:52,851 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 26 [2018-11-23 16:05:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:52,851 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-11-23 16:05:52,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 16:05:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-11-23 16:05:52,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 16:05:52,853 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:52,853 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:52,853 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:52,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:52,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1992269889, now seen corresponding path program 1 times [2018-11-23 16:05:52,854 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 16:05:52,854 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:05:52,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:52,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:52,989 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 7 treesize of output 5 [2018-11-23 16:05:52,993 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 [2018-11-23 16:05:52,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:52,998 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:53,017 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 17 treesize of output 13 [2018-11-23 16:05:53,020 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:53,021 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 13 treesize of output 6 [2018-11-23 16:05:53,021 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:53,023 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:53,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:53,030 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:33, output treesize:10 [2018-11-23 16:05:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:05:53,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:05:53,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:53,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 16:05:53,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 16:05:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 16:05:53,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-23 16:05:53,262 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 9 states. [2018-11-23 16:05:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:56,606 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2018-11-23 16:05:56,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 16:05:56,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-23 16:05:56,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:56,608 INFO L225 Difference]: With dead ends: 89 [2018-11-23 16:05:56,609 INFO L226 Difference]: Without dead ends: 70 [2018-11-23 16:05:56,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-23 16:05:56,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-23 16:05:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 53. [2018-11-23 16:05:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-23 16:05:56,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-11-23 16:05:56,622 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 26 [2018-11-23 16:05:56,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:56,623 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-11-23 16:05:56,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 16:05:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-11-23 16:05:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 16:05:56,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:56,624 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] [2018-11-23 16:05:56,624 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:56,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:56,625 INFO L82 PathProgramCache]: Analyzing trace with hash 43650710, now seen corresponding path program 1 times [2018-11-23 16:05:56,625 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 16:05:56,625 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:05:56,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:56,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:05:56,689 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:05:56,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:56,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 16:05:56,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 16:05:56,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 16:05:56,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:56,692 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 4 states. [2018-11-23 16:05:56,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:56,706 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2018-11-23 16:05:56,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 16:05:56,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-23 16:05:56,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:56,707 INFO L225 Difference]: With dead ends: 70 [2018-11-23 16:05:56,707 INFO L226 Difference]: Without dead ends: 53 [2018-11-23 16:05:56,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-23 16:05:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2018-11-23 16:05:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-23 16:05:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2018-11-23 16:05:56,715 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 26 [2018-11-23 16:05:56,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:56,716 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2018-11-23 16:05:56,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 16:05:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-23 16:05:56,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 16:05:56,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:56,717 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:05:56,717 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:56,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:56,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1877696277, now seen corresponding path program 1 times [2018-11-23 16:05:56,719 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 16:05:56,719 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:05:56,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:56,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:05:56,803 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:05:56,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:05:56,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 16:05:56,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 16:05:56,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 16:05:56,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:56,807 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 4 states. [2018-11-23 16:05:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:05:56,815 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2018-11-23 16:05:56,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 16:05:56,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-11-23 16:05:56,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:05:56,816 INFO L225 Difference]: With dead ends: 75 [2018-11-23 16:05:56,816 INFO L226 Difference]: Without dead ends: 45 [2018-11-23 16:05:56,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 16:05:56,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-23 16:05:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-23 16:05:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-23 16:05:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2018-11-23 16:05:56,821 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 40 [2018-11-23 16:05:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:05:56,822 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2018-11-23 16:05:56,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 16:05:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2018-11-23 16:05:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 16:05:56,823 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:05:56,823 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, 1, 1, 1, 1] [2018-11-23 16:05:56,823 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:05:56,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:05:56,823 INFO L82 PathProgramCache]: Analyzing trace with hash -752088190, now seen corresponding path program 1 times [2018-11-23 16:05:56,823 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 16:05:56,824 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:05:56,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:05:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:05:56,944 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:05:56,951 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 9 treesize of output 12 [2018-11-23 16:05:56,958 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:56,966 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 16:05:56,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 16:05:56,979 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:57,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:57,008 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:45 [2018-11-23 16:05:57,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-11-23 16:05:57,041 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 7 treesize of output 1 [2018-11-23 16:05:57,042 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,046 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,067 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 23 treesize of output 21 [2018-11-23 16:05:57,069 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 7 treesize of output 1 [2018-11-23 16:05:57,069 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,074 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,084 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:57,084 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:45, output treesize:27 [2018-11-23 16:05:57,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-11-23 16:05:57,107 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,126 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:57,127 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:57,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 17 treesize of output 11 [2018-11-23 16:05:57,128 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,138 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:7 [2018-11-23 16:05:57,281 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 77 treesize of output 48 [2018-11-23 16:05:57,397 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-23 16:05:57,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 16:05:57,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:57,703 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 53 [2018-11-23 16:05:57,719 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-23 16:05:57,737 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:57,741 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:57,771 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 2 case distinctions, treesize of input 23 treesize of output 44 [2018-11-23 16:05:57,772 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 16:05:57,846 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:05:58,273 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 42 treesize of output 44 [2018-11-23 16:05:58,281 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:58,286 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 16 treesize of output 23 [2018-11-23 16:05:58,286 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:58,325 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:58,820 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 57 [2018-11-23 16:05:58,832 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 43 treesize of output 44 [2018-11-23 16:05:58,832 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:58,956 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 42 treesize of output 41 [2018-11-23 16:05:58,957 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:59,012 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:05:59,374 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 50 [2018-11-23 16:05:59,381 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 41 treesize of output 40 [2018-11-23 16:05:59,381 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:59,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2018-11-23 16:05:59,711 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:59,712 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 44 treesize of output 53 [2018-11-23 16:05:59,712 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 16:05:59,805 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:05:59,823 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 2 case distinctions, treesize of input 46 treesize of output 69 [2018-11-23 16:05:59,824 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-23 16:05:59,961 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:06:00,184 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 16:06:00,434 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 39 [2018-11-23 16:06:00,439 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 [2018-11-23 16:06:00,439 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:00,461 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:06:00,527 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:06:00,596 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-23 16:06:00,612 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-23 16:06:00,637 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:00,638 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 16:06:00,638 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 37 treesize of output 46 [2018-11-23 16:06:00,639 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:00,699 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:06:01,362 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 47 treesize of output 46 [2018-11-23 16:06:01,369 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:01,372 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:01,373 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 30 treesize of output 42 [2018-11-23 16:06:01,373 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:01,415 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:06:01,768 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 48 treesize of output 43 [2018-11-23 16:06:01,809 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 2 case distinctions, treesize of input 27 treesize of output 47 [2018-11-23 16:06:01,809 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-23 16:06:01,901 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:06:02,424 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 43 treesize of output 34 [2018-11-23 16:06:02,435 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:02,448 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-23 16:06:02,448 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:02,477 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:06:02,687 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:06:02,918 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:06:02,993 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 16:06:02,993 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 4 variables, input treesize:81, output treesize:99 [2018-11-23 16:06:19,218 WARN L180 SmtUtils]: Spent 16.16 s on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2018-11-23 16:06:27,402 WARN L180 SmtUtils]: Spent 8.12 s on a formula simplification that was a NOOP. DAG size: 35 [2018-11-23 16:06:35,530 WARN L180 SmtUtils]: Spent 8.06 s on a formula simplification that was a NOOP. DAG size: 37 [2018-11-23 16:06:35,543 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,545 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,546 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 55 treesize of output 49 [2018-11-23 16:06:35,546 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:35,704 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,706 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 49 treesize of output 43 [2018-11-23 16:06:35,707 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:35,867 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,871 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,873 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:35,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 57 treesize of output 50 [2018-11-23 16:06:35,874 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:36,015 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:36,018 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:36,019 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:06:36,020 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 51 treesize of output 44 [2018-11-23 16:06:36,021 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:06:36,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-11-23 16:06:36,157 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:213, output treesize:187 [2018-11-23 16:06:40,354 WARN L180 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2018-11-23 16:06:44,548 WARN L180 SmtUtils]: Spent 4.10 s on a formula simplification that was a NOOP. DAG size: 42 [2018-11-23 16:06:46,723 WARN L180 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 39 [2018-11-23 16:06:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 16:06:46,740 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 16:06:46,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 16:06:46,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-23 16:06:46,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 16:06:46,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 16:06:46,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2018-11-23 16:06:46,743 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 17 states. [2018-11-23 16:07:08,475 WARN L180 SmtUtils]: Spent 16.24 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-11-23 16:07:20,840 WARN L180 SmtUtils]: Spent 12.25 s on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-11-23 16:07:33,225 WARN L180 SmtUtils]: Spent 12.26 s on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-11-23 16:07:37,437 WARN L180 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2018-11-23 16:07:41,677 WARN L180 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2018-11-23 16:07:59,986 WARN L180 SmtUtils]: Spent 18.22 s on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-11-23 16:08:24,434 WARN L180 SmtUtils]: Spent 24.29 s on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2018-11-23 16:08:24,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 16:08:24,689 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2018-11-23 16:08:24,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 16:08:24,691 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 40 [2018-11-23 16:08:24,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 16:08:24,692 INFO L225 Difference]: With dead ends: 54 [2018-11-23 16:08:24,692 INFO L226 Difference]: Without dead ends: 48 [2018-11-23 16:08:24,692 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 135.7s TimeCoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2018-11-23 16:08:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-23 16:08:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2018-11-23 16:08:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-23 16:08:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2018-11-23 16:08:24,700 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 40 [2018-11-23 16:08:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 16:08:24,701 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2018-11-23 16:08:24,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 16:08:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2018-11-23 16:08:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 16:08:24,701 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 16:08:24,702 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 16:08:24,702 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 16:08:24,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 16:08:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash -441484042, now seen corresponding path program 1 times [2018-11-23 16:08:24,702 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 16:08:24,702 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249348bb-3048-46c2-bf74-5f95914a547d/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:08:24,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 16:08:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 16:08:24,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 16:08:24,842 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 9 treesize of output 12 [2018-11-23 16:08:24,855 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:24,861 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 16:08:24,862 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 16:08:24,870 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:08:24,887 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:08:24,887 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:73 [2018-11-23 16:08:24,927 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 35 treesize of output 33 [2018-11-23 16:08:24,929 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 [2018-11-23 16:08:24,930 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:24,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:24,968 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 37 treesize of output 35 [2018-11-23 16:08:24,970 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 [2018-11-23 16:08:24,970 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:24,981 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:08:25,007 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:73, output treesize:59 [2018-11-23 16:08:25,043 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 34 treesize of output 29 [2018-11-23 16:08:25,044 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,077 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:25,079 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:25,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 36 treesize of output 30 [2018-11-23 16:08:25,080 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,119 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 29 treesize of output 25 [2018-11-23 16:08:25,121 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:25,122 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 13 treesize of output 6 [2018-11-23 16:08:25,122 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,129 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,158 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 16:08:25,161 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:25,162 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 13 treesize of output 6 [2018-11-23 16:08:25,162 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,168 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,178 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:10 [2018-11-23 16:08:25,294 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 [2018-11-23 16:08:25,297 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 [2018-11-23 16:08:25,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:25,324 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2018-11-23 16:08:25,469 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 16:08:26,409 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 16:08:30,023 INFO L303 Elim1Store]: Index analysis took 452 ms [2018-11-23 16:08:30,024 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 77 treesize of output 48 [2018-11-23 16:08:30,223 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-23 16:08:30,378 INFO L303 Elim1Store]: Index analysis took 155 ms [2018-11-23 16:08:30,379 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 16:08:30,379 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:37,515 INFO L303 Elim1Store]: Index analysis took 3806 ms [2018-11-23 16:08:37,553 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 53 [2018-11-23 16:08:37,633 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 42 treesize of output 50 [2018-11-23 16:08:37,695 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:37,810 INFO L303 Elim1Store]: Index analysis took 175 ms [2018-11-23 16:08:37,811 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 22 treesize of output 35 [2018-11-23 16:08:37,811 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:38,836 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:08:52,774 INFO L303 Elim1Store]: Index analysis took 381 ms [2018-11-23 16:08:52,847 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 47 [2018-11-23 16:08:52,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:53,178 INFO L303 Elim1Store]: Index analysis took 329 ms [2018-11-23 16:08:53,178 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 39 treesize of output 46 [2018-11-23 16:08:53,179 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 16:08:57,138 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:57,172 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:08:57,675 INFO L303 Elim1Store]: Index analysis took 772 ms [2018-11-23 16:08:57,733 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 2 case distinctions, treesize of input 41 treesize of output 64 [2018-11-23 16:08:57,734 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-23 16:09:05,687 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:09:35,903 INFO L303 Elim1Store]: Index analysis took 454 ms [2018-11-23 16:09:35,904 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 44 treesize of output 41 [2018-11-23 16:09:35,933 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 13 [2018-11-23 16:09:35,933 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 16:09:36,729 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:09:37,254 INFO L303 Elim1Store]: Index analysis took 523 ms [2018-11-23 16:09:37,254 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 40 treesize of output 37 [2018-11-23 16:09:37,287 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 13 [2018-11-23 16:09:37,288 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 16:09:38,086 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:09:38,499 INFO L303 Elim1Store]: Index analysis took 412 ms [2018-11-23 16:09:38,500 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 39 [2018-11-23 16:09:38,527 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 13 [2018-11-23 16:09:38,528 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 16:09:39,312 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:09:56,347 INFO L303 Elim1Store]: Index analysis took 1572 ms [2018-11-23 16:09:56,383 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 57 [2018-11-23 16:09:56,427 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 48 treesize of output 53 [2018-11-23 16:09:56,428 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 16:10:01,525 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:10:12,522 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:10:13,475 INFO L303 Elim1Store]: Index analysis took 951 ms [2018-11-23 16:10:13,519 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-23 16:10:13,547 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 47 treesize of output 52 [2018-11-23 16:10:13,645 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:13,897 INFO L303 Elim1Store]: Index analysis took 350 ms [2018-11-23 16:10:13,898 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 36 treesize of output 46 [2018-11-23 16:10:13,898 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 16:10:15,220 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 16:10:22,766 INFO L303 Elim1Store]: Index analysis took 179 ms [2018-11-23 16:10:23,004 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 49 [2018-11-23 16:10:23,046 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:23,127 INFO L303 Elim1Store]: Index analysis took 122 ms [2018-11-23 16:10:23,128 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 41 treesize of output 45 [2018-11-23 16:10:23,128 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 16:10:26,146 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:26,202 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:26,446 INFO L303 Elim1Store]: Index analysis took 458 ms [2018-11-23 16:10:26,566 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 2 case distinctions, treesize of input 43 treesize of output 63 [2018-11-23 16:10:26,567 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-23 16:10:31,197 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:10:45,413 INFO L303 Elim1Store]: Index analysis took 107 ms [2018-11-23 16:10:45,414 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 43 treesize of output 34 [2018-11-23 16:10:45,507 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:45,517 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:45,862 INFO L303 Elim1Store]: Index analysis took 447 ms [2018-11-23 16:10:45,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 67 [2018-11-23 16:10:45,993 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 4 xjuncts. [2018-11-23 16:10:49,113 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:10:49,189 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 41 treesize of output 34 [2018-11-23 16:10:49,234 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:49,382 INFO L303 Elim1Store]: Index analysis took 192 ms [2018-11-23 16:10:49,431 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 2 case distinctions, treesize of input 21 treesize of output 39 [2018-11-23 16:10:49,432 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 16:10:51,314 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 16:10:51,398 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 39 treesize of output 32 [2018-11-23 16:10:51,449 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:51,565 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 16:10:51,610 INFO L303 Elim1Store]: Index analysis took 211 ms [2018-11-23 16:10:51,674 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 4 case distinctions, treesize of input 21 treesize of output 44 [2018-11-23 16:10:51,675 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 4 xjuncts. [2018-11-23 16:10:54,586 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 16:11:22,176 INFO L303 Elim1Store]: Index analysis took 997 ms [2018-11-23 16:11:22,244 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 47 treesize of output 55 [2018-11-23 16:11:22,446 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 16:11:22,446 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_36 |__ldv_list_add_#in~new.offset| __ldv_list_add_~next.offset) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:208) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:142) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) 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.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) [2018-11-23 16:11:22,449 INFO L168 Benchmark]: Toolchain (without parser) took 330771.47 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.0 MB). Free memory was 944.4 MB in the beginning and 825.4 MB in the end (delta: 118.9 MB). Peak memory consumption was 411.0 MB. Max. memory is 11.5 GB. [2018-11-23 16:11:22,449 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 16:11:22,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:11:22,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.78 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. [2018-11-23 16:11:22,450 INFO L168 Benchmark]: Boogie Preprocessor took 23.19 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. [2018-11-23 16:11:22,450 INFO L168 Benchmark]: RCFGBuilder took 386.98 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-23 16:11:22,450 INFO L168 Benchmark]: TraceAbstraction took 329896.73 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.1 GB in the beginning and 825.4 MB in the end (delta: 250.2 MB). Peak memory consumption was 406.5 MB. Max. memory is 11.5 GB. [2018-11-23 16:11:22,452 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 436.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.78 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 23.19 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 386.98 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 329896.73 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.1 GB in the beginning and 825.4 MB in the end (delta: 250.2 MB). Peak memory consumption was 406.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_36 |__ldv_list_add_#in~new.offset| __ldv_list_add_~next.offset) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_36 |__ldv_list_add_#in~new.offset| __ldv_list_add_~next.offset): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...