./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e41652bc5d5e6ecf5f01d273023c8e2664e3cb5e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e41652bc5d5e6ecf5f01d273023c8e2664e3cb5e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:45:33,155 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:45:33,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:45:33,162 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:45:33,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:45:33,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:45:33,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:45:33,164 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:45:33,165 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:45:33,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:45:33,165 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:45:33,166 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:45:33,166 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:45:33,167 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:45:33,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:45:33,168 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:45:33,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:45:33,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:45:33,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:45:33,171 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:45:33,171 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:45:33,172 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:45:33,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:45:33,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:45:33,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:45:33,173 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:45:33,174 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:45:33,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:45:33,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:45:33,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:45:33,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:45:33,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:45:33,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:45:33,176 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:45:33,177 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:45:33,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:45:33,177 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-08 23:45:33,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:45:33,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:45:33,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:45:33,185 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:45:33,185 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:45:33,185 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:45:33,185 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:45:33,186 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 23:45:33,186 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 23:45:33,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:45:33,187 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:45:33,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:33,188 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:45:33,188 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> e41652bc5d5e6ecf5f01d273023c8e2664e3cb5e [2018-12-08 23:45:33,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:45:33,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:45:33,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:45:33,215 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:45:33,216 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:45:33,216 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/../../sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i [2018-12-08 23:45:33,249 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/d60a2f975/8d18c04ad66545819978facade8f780e/FLAGe5f54f896 [2018-12-08 23:45:33,674 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:45:33,675 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i [2018-12-08 23:45:33,683 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/d60a2f975/8d18c04ad66545819978facade8f780e/FLAGe5f54f896 [2018-12-08 23:45:33,691 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/d60a2f975/8d18c04ad66545819978facade8f780e [2018-12-08 23:45:33,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:45:33,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:45:33,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:33,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:45:33,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:45:33,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:33" (1/1) ... [2018-12-08 23:45:33,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b4f3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:33, skipping insertion in model container [2018-12-08 23:45:33,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:33" (1/1) ... [2018-12-08 23:45:33,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:45:33,734 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:45:33,999 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:34,005 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:45:34,037 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:34,101 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:45:34,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34 WrapperNode [2018-12-08 23:45:34,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:34,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:34,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:45:34,102 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:45:34,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:34,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:45:34,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:45:34,130 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:45:34,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... [2018-12-08 23:45:34,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:45:34,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:45:34,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:45:34,148 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:45:34,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 23:45:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:45:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 23:45:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:45:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 23:45:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 23:45:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 23:45:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure delete [2018-12-08 23:45:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure delete [2018-12-08 23:45:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure build [2018-12-08 23:45:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure build [2018-12-08 23:45:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:45:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:45:34,180 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 23:45:34,411 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:45:34,411 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 23:45:34,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:34 BoogieIcfgContainer [2018-12-08 23:45:34,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:45:34,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:45:34,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:45:34,415 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:45:34,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:45:33" (1/3) ... [2018-12-08 23:45:34,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1ac317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:34, skipping insertion in model container [2018-12-08 23:45:34,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:34" (2/3) ... [2018-12-08 23:45:34,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1ac317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:34, skipping insertion in model container [2018-12-08 23:45:34,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:34" (3/3) ... [2018-12-08 23:45:34,417 INFO L112 eAbstractionObserver]: Analyzing ICFG list1_false-valid-deref.i [2018-12-08 23:45:34,441 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,441 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,441 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,441 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,442 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,443 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,444 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,445 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,446 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,447 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,448 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,449 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,450 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,451 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,456 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,457 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,459 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,459 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:34,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:45:34,476 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 61 error locations. [2018-12-08 23:45:34,485 INFO L257 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2018-12-08 23:45:34,501 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:45:34,501 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 23:45:34,501 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:45:34,501 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:45:34,501 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:45:34,501 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:45:34,501 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:45:34,501 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:45:34,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 125places, 130 transitions [2018-12-08 23:45:34,522 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 447 states. [2018-12-08 23:45:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2018-12-08 23:45:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 23:45:34,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:34,528 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:34,529 INFO L423 AbstractCegarLoop]: === Iteration 1 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:34,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:34,533 INFO L82 PathProgramCache]: Analyzing trace with hash 981372646, now seen corresponding path program 1 times [2018-12-08 23:45:34,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:34,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:34,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:34,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:34,569 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:34,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:34,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:45:34,639 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:34,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:45:34,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:45:34,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:34,651 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 3 states. [2018-12-08 23:45:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:34,736 INFO L93 Difference]: Finished difference Result 474 states and 828 transitions. [2018-12-08 23:45:34,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:45:34,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-08 23:45:34,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:34,747 INFO L225 Difference]: With dead ends: 474 [2018-12-08 23:45:34,747 INFO L226 Difference]: Without dead ends: 470 [2018-12-08 23:45:34,748 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:34,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2018-12-08 23:45:34,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 397. [2018-12-08 23:45:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2018-12-08 23:45:34,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 694 transitions. [2018-12-08 23:45:34,784 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 694 transitions. Word has length 12 [2018-12-08 23:45:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:34,784 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 694 transitions. [2018-12-08 23:45:34,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:45:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 694 transitions. [2018-12-08 23:45:34,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 23:45:34,785 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:34,785 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:34,785 INFO L423 AbstractCegarLoop]: === Iteration 2 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:34,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:34,785 INFO L82 PathProgramCache]: Analyzing trace with hash 981372647, now seen corresponding path program 1 times [2018-12-08 23:45:34,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:34,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:34,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:34,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:34,789 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:34,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:34,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:34,826 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:34,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:34,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:34,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:34,828 INFO L87 Difference]: Start difference. First operand 397 states and 694 transitions. Second operand 4 states. [2018-12-08 23:45:34,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:34,907 INFO L93 Difference]: Finished difference Result 424 states and 732 transitions. [2018-12-08 23:45:34,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:34,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-08 23:45:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:34,909 INFO L225 Difference]: With dead ends: 424 [2018-12-08 23:45:34,909 INFO L226 Difference]: Without dead ends: 424 [2018-12-08 23:45:34,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2018-12-08 23:45:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 351. [2018-12-08 23:45:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2018-12-08 23:45:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 602 transitions. [2018-12-08 23:45:34,924 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 602 transitions. Word has length 12 [2018-12-08 23:45:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:34,924 INFO L480 AbstractCegarLoop]: Abstraction has 351 states and 602 transitions. [2018-12-08 23:45:34,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 602 transitions. [2018-12-08 23:45:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 23:45:34,925 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:34,925 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:34,926 INFO L423 AbstractCegarLoop]: === Iteration 3 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:34,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:34,926 INFO L82 PathProgramCache]: Analyzing trace with hash -260981452, now seen corresponding path program 1 times [2018-12-08 23:45:34,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:34,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:34,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:34,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:34,929 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:34,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:34,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 23:45:34,975 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:34,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:45:34,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:45:34,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:34,976 INFO L87 Difference]: Start difference. First operand 351 states and 602 transitions. Second operand 5 states. [2018-12-08 23:45:35,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:35,073 INFO L93 Difference]: Finished difference Result 424 states and 732 transitions. [2018-12-08 23:45:35,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:45:35,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-08 23:45:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:35,075 INFO L225 Difference]: With dead ends: 424 [2018-12-08 23:45:35,075 INFO L226 Difference]: Without dead ends: 424 [2018-12-08 23:45:35,075 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2018-12-08 23:45:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 345. [2018-12-08 23:45:35,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-08 23:45:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 592 transitions. [2018-12-08 23:45:35,082 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 592 transitions. Word has length 22 [2018-12-08 23:45:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:35,082 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 592 transitions. [2018-12-08 23:45:35,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:45:35,083 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 592 transitions. [2018-12-08 23:45:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 23:45:35,083 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:35,083 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:35,084 INFO L423 AbstractCegarLoop]: === Iteration 4 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:35,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:35,084 INFO L82 PathProgramCache]: Analyzing trace with hash -260981451, now seen corresponding path program 1 times [2018-12-08 23:45:35,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:35,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:35,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:35,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:35,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:45:35,146 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:35,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:35,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:35,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:35,147 INFO L87 Difference]: Start difference. First operand 345 states and 592 transitions. Second operand 6 states. [2018-12-08 23:45:35,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:35,282 INFO L93 Difference]: Finished difference Result 418 states and 722 transitions. [2018-12-08 23:45:35,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:35,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 23:45:35,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:35,283 INFO L225 Difference]: With dead ends: 418 [2018-12-08 23:45:35,283 INFO L226 Difference]: Without dead ends: 418 [2018-12-08 23:45:35,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:45:35,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2018-12-08 23:45:35,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 339. [2018-12-08 23:45:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-12-08 23:45:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 582 transitions. [2018-12-08 23:45:35,291 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 582 transitions. Word has length 22 [2018-12-08 23:45:35,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:35,292 INFO L480 AbstractCegarLoop]: Abstraction has 339 states and 582 transitions. [2018-12-08 23:45:35,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 582 transitions. [2018-12-08 23:45:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:45:35,293 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:35,293 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:35,293 INFO L423 AbstractCegarLoop]: === Iteration 5 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:35,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:35,294 INFO L82 PathProgramCache]: Analyzing trace with hash 499509848, now seen corresponding path program 1 times [2018-12-08 23:45:35,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:35,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:35,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,297 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:35,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:35,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:35,323 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:35,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:35,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:35,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:35,324 INFO L87 Difference]: Start difference. First operand 339 states and 582 transitions. Second operand 4 states. [2018-12-08 23:45:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:35,385 INFO L93 Difference]: Finished difference Result 406 states and 702 transitions. [2018-12-08 23:45:35,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:35,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 23:45:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:35,386 INFO L225 Difference]: With dead ends: 406 [2018-12-08 23:45:35,386 INFO L226 Difference]: Without dead ends: 406 [2018-12-08 23:45:35,386 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2018-12-08 23:45:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 327. [2018-12-08 23:45:35,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2018-12-08 23:45:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 562 transitions. [2018-12-08 23:45:35,392 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 562 transitions. Word has length 23 [2018-12-08 23:45:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:35,393 INFO L480 AbstractCegarLoop]: Abstraction has 327 states and 562 transitions. [2018-12-08 23:45:35,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 562 transitions. [2018-12-08 23:45:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:45:35,393 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:35,394 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:35,394 INFO L423 AbstractCegarLoop]: === Iteration 6 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:35,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:35,394 INFO L82 PathProgramCache]: Analyzing trace with hash 499509849, now seen corresponding path program 1 times [2018-12-08 23:45:35,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:35,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:35,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,397 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:35,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:35,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:35,426 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:35,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:35,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:35,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:35,427 INFO L87 Difference]: Start difference. First operand 327 states and 562 transitions. Second operand 4 states. [2018-12-08 23:45:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:35,483 INFO L93 Difference]: Finished difference Result 321 states and 552 transitions. [2018-12-08 23:45:35,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:35,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 23:45:35,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:35,485 INFO L225 Difference]: With dead ends: 321 [2018-12-08 23:45:35,485 INFO L226 Difference]: Without dead ends: 321 [2018-12-08 23:45:35,486 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:35,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-12-08 23:45:35,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 315. [2018-12-08 23:45:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-12-08 23:45:35,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 542 transitions. [2018-12-08 23:45:35,493 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 542 transitions. Word has length 23 [2018-12-08 23:45:35,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:35,494 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 542 transitions. [2018-12-08 23:45:35,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:35,494 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 542 transitions. [2018-12-08 23:45:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 23:45:35,494 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:35,495 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:35,495 INFO L423 AbstractCegarLoop]: === Iteration 7 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:35,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:35,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1460568546, now seen corresponding path program 1 times [2018-12-08 23:45:35,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:35,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:35,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,498 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:35,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:35,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-08 23:45:35,634 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:35,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:45:35,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:45:35,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:45:35,634 INFO L87 Difference]: Start difference. First operand 315 states and 542 transitions. Second operand 11 states. [2018-12-08 23:45:35,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:35,904 INFO L93 Difference]: Finished difference Result 378 states and 647 transitions. [2018-12-08 23:45:35,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 23:45:35,905 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2018-12-08 23:45:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:35,905 INFO L225 Difference]: With dead ends: 378 [2018-12-08 23:45:35,906 INFO L226 Difference]: Without dead ends: 378 [2018-12-08 23:45:35,906 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2018-12-08 23:45:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-12-08 23:45:35,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 345. [2018-12-08 23:45:35,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-08 23:45:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 592 transitions. [2018-12-08 23:45:35,910 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 592 transitions. Word has length 28 [2018-12-08 23:45:35,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:35,910 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 592 transitions. [2018-12-08 23:45:35,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:45:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 592 transitions. [2018-12-08 23:45:35,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-08 23:45:35,911 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:35,912 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:35,912 INFO L423 AbstractCegarLoop]: === Iteration 8 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:35,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:35,912 INFO L82 PathProgramCache]: Analyzing trace with hash 25669092, now seen corresponding path program 1 times [2018-12-08 23:45:35,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:35,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:35,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:35,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:36,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:36,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 23:45:36,041 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:36,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:45:36,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:45:36,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:36,042 INFO L87 Difference]: Start difference. First operand 345 states and 592 transitions. Second operand 9 states. [2018-12-08 23:45:36,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:36,114 INFO L93 Difference]: Finished difference Result 395 states and 668 transitions. [2018-12-08 23:45:36,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:45:36,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-12-08 23:45:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:36,115 INFO L225 Difference]: With dead ends: 395 [2018-12-08 23:45:36,115 INFO L226 Difference]: Without dead ends: 395 [2018-12-08 23:45:36,115 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:36,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-12-08 23:45:36,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 356. [2018-12-08 23:45:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-12-08 23:45:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 628 transitions. [2018-12-08 23:45:36,119 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 628 transitions. Word has length 44 [2018-12-08 23:45:36,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:36,119 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 628 transitions. [2018-12-08 23:45:36,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:45:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 628 transitions. [2018-12-08 23:45:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-08 23:45:36,120 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:36,120 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:36,120 INFO L423 AbstractCegarLoop]: === Iteration 9 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:36,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:36,121 INFO L82 PathProgramCache]: Analyzing trace with hash 25669093, now seen corresponding path program 1 times [2018-12-08 23:45:36,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:36,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:36,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:36,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:36,122 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:36,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:36,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 23:45:36,274 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:36,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 23:45:36,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 23:45:36,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:36,275 INFO L87 Difference]: Start difference. First operand 356 states and 628 transitions. Second operand 10 states. [2018-12-08 23:45:36,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:36,428 INFO L93 Difference]: Finished difference Result 320 states and 541 transitions. [2018-12-08 23:45:36,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:45:36,428 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2018-12-08 23:45:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:36,429 INFO L225 Difference]: With dead ends: 320 [2018-12-08 23:45:36,429 INFO L226 Difference]: Without dead ends: 320 [2018-12-08 23:45:36,429 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:45:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-12-08 23:45:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 317. [2018-12-08 23:45:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-12-08 23:45:36,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 536 transitions. [2018-12-08 23:45:36,432 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 536 transitions. Word has length 44 [2018-12-08 23:45:36,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:36,432 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 536 transitions. [2018-12-08 23:45:36,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 23:45:36,432 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 536 transitions. [2018-12-08 23:45:36,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-08 23:45:36,433 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:36,433 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:36,433 INFO L423 AbstractCegarLoop]: === Iteration 10 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:36,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:36,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1449126220, now seen corresponding path program 1 times [2018-12-08 23:45:36,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:36,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:36,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:36,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:36,435 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:36,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:36,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:36,472 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:36,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:36,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:36,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:36,473 INFO L87 Difference]: Start difference. First operand 317 states and 536 transitions. Second operand 6 states. [2018-12-08 23:45:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:36,510 INFO L93 Difference]: Finished difference Result 174 states and 275 transitions. [2018-12-08 23:45:36,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:36,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-12-08 23:45:36,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:36,511 INFO L225 Difference]: With dead ends: 174 [2018-12-08 23:45:36,511 INFO L226 Difference]: Without dead ends: 174 [2018-12-08 23:45:36,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-12-08 23:45:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-12-08 23:45:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-12-08 23:45:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 275 transitions. [2018-12-08 23:45:36,513 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 275 transitions. Word has length 49 [2018-12-08 23:45:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:36,514 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 275 transitions. [2018-12-08 23:45:36,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:36,514 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 275 transitions. [2018-12-08 23:45:36,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-08 23:45:36,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:36,514 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2018-12-08 23:45:36,515 INFO L423 AbstractCegarLoop]: === Iteration 11 === [buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr3REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:36,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:36,515 INFO L82 PathProgramCache]: Analyzing trace with hash 51732373, now seen corresponding path program 1 times [2018-12-08 23:45:36,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:36,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:36,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:36,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:36,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:36,627 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:36,627 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:36,627 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-12-08 23:45:36,630 INFO L168 Benchmark]: Toolchain (without parser) took 2936.37 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.5 MB). Free memory was 953.5 MB in the beginning and 926.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 264.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:36,631 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-08 23:45:36,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:36,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:45:36,631 INFO L168 Benchmark]: Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:45:36,632 INFO L168 Benchmark]: RCFGBuilder took 264.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:36,632 INFO L168 Benchmark]: TraceAbstraction took 2217.23 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 926.7 MB in the end (delta: 158.7 MB). Peak memory consumption was 225.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:36,634 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 406.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.82 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 17.90 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 264.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2217.23 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 926.7 MB in the end (delta: 158.7 MB). Peak memory consumption was 225.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:45:38,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:45:38,020 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:45:38,026 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:45:38,026 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:45:38,026 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:45:38,027 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:45:38,028 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:45:38,029 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:45:38,029 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:45:38,029 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:45:38,029 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:45:38,030 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:45:38,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:45:38,031 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:45:38,031 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:45:38,032 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:45:38,032 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:45:38,033 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:45:38,034 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:45:38,035 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:45:38,035 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:45:38,036 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:45:38,036 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:45:38,037 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:45:38,037 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:45:38,037 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:45:38,038 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:45:38,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:45:38,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:45:38,039 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:45:38,039 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:45:38,039 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:45:38,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:45:38,040 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:45:38,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:45:38,040 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-08 23:45:38,047 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:45:38,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:45:38,048 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:45:38,048 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:45:38,048 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:45:38,048 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:45:38,049 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:45:38,049 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:45:38,049 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:45:38,049 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:45:38,049 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 23:45:38,049 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 23:45:38,049 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:45:38,049 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:45:38,050 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 23:45:38,051 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:38,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:45:38,051 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 23:45:38,052 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> e41652bc5d5e6ecf5f01d273023c8e2664e3cb5e [2018-12-08 23:45:38,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:45:38,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:45:38,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:45:38,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:45:38,079 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:45:38,080 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/../../sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i [2018-12-08 23:45:38,114 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/4d19c9034/81cbdb29dad440c4a970449b7f1e903b/FLAGb1825e30e [2018-12-08 23:45:38,542 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:45:38,543 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/sv-benchmarks/c/pthread-memsafety/list1_false-valid-deref.i [2018-12-08 23:45:38,551 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/4d19c9034/81cbdb29dad440c4a970449b7f1e903b/FLAGb1825e30e [2018-12-08 23:45:38,559 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/data/4d19c9034/81cbdb29dad440c4a970449b7f1e903b [2018-12-08 23:45:38,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:45:38,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:45:38,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:38,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:45:38,565 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:45:38,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3578b93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38, skipping insertion in model container [2018-12-08 23:45:38,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:45:38,594 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:45:38,816 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:38,823 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:45:38,890 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:38,946 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:45:38,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38 WrapperNode [2018-12-08 23:45:38,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:38,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:38,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:45:38,947 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:45:38,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:38,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:45:38,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:45:38,976 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:45:38,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... [2018-12-08 23:45:38,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:45:38,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:45:38,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:45:38,996 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:45:38,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure delete [2018-12-08 23:45:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure delete [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure build [2018-12-08 23:45:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure build [2018-12-08 23:45:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:45:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:45:39,028 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 23:45:39,354 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:45:39,354 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 23:45:39,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:39 BoogieIcfgContainer [2018-12-08 23:45:39,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:45:39,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:45:39,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:45:39,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:45:39,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:45:38" (1/3) ... [2018-12-08 23:45:39,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b9bce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:39, skipping insertion in model container [2018-12-08 23:45:39,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:38" (2/3) ... [2018-12-08 23:45:39,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b9bce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:39, skipping insertion in model container [2018-12-08 23:45:39,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:39" (3/3) ... [2018-12-08 23:45:39,359 INFO L112 eAbstractionObserver]: Analyzing ICFG list1_false-valid-deref.i [2018-12-08 23:45:39,383 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,384 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,384 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_~#list~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,386 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,387 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,388 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,389 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,390 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,390 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,390 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,390 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,390 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,390 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,391 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,392 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,393 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,393 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,393 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,394 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~malloc7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,397 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,398 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,398 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,398 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,398 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,398 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,398 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~ite8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,399 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_append_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~elem~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,400 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,401 WARN L317 ript$VariableManager]: TermVariabe Thread1_build_append_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,401 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,401 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,401 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,401 WARN L317 ript$VariableManager]: TermVariabe |Thread1_build_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#in~plist.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#in~plist.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~plist.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,402 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,403 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,404 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,404 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,404 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,404 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,404 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,404 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,405 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,406 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,407 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,408 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,409 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem12.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,409 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,410 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe |Thread0_delete_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,411 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~next~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_delete_~list~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:45:39,435 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:45:39,440 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 61 error locations. [2018-12-08 23:45:39,449 INFO L257 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2018-12-08 23:45:39,463 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 23:45:39,463 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:45:39,464 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 23:45:39,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:45:39,464 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:45:39,464 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:45:39,464 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:45:39,464 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:45:39,464 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:45:39,471 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 124places, 129 transitions [2018-12-08 23:45:39,485 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 442 states. [2018-12-08 23:45:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states. [2018-12-08 23:45:39,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 23:45:39,491 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:39,492 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:39,493 INFO L423 AbstractCegarLoop]: === Iteration 1 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:39,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:39,497 INFO L82 PathProgramCache]: Analyzing trace with hash -529546454, now seen corresponding path program 1 times [2018-12-08 23:45:39,499 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:39,499 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:39,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:39,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:39,572 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:39,573 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,583 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 23:45:39,594 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-08 23:45:39,594 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:39,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-08 23:45:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:39,606 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:39,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:39,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:45:39,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:45:39,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:45:39,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:39,620 INFO L87 Difference]: Start difference. First operand 442 states. Second operand 3 states. [2018-12-08 23:45:39,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:39,778 INFO L93 Difference]: Finished difference Result 470 states and 821 transitions. [2018-12-08 23:45:39,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:45:39,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-08 23:45:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:39,792 INFO L225 Difference]: With dead ends: 470 [2018-12-08 23:45:39,792 INFO L226 Difference]: Without dead ends: 466 [2018-12-08 23:45:39,793 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-12-08 23:45:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 393. [2018-12-08 23:45:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2018-12-08 23:45:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 687 transitions. [2018-12-08 23:45:39,843 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 687 transitions. Word has length 12 [2018-12-08 23:45:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:39,844 INFO L480 AbstractCegarLoop]: Abstraction has 393 states and 687 transitions. [2018-12-08 23:45:39,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:45:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 687 transitions. [2018-12-08 23:45:39,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 23:45:39,844 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:39,844 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:39,845 INFO L423 AbstractCegarLoop]: === Iteration 2 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:39,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:39,845 INFO L82 PathProgramCache]: Analyzing trace with hash -529546453, now seen corresponding path program 1 times [2018-12-08 23:45:39,846 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:39,846 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:39,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:39,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:39,899 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:39,899 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:39,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 23:45:39,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:39,943 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:39,944 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 11 treesize of output 4 [2018-12-08 23:45:39,944 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,959 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 12 treesize of output 15 [2018-12-08 23:45:39,960 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:39,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:39,972 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:18 [2018-12-08 23:45:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:39,997 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:39,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:39,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:39,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:39,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:39,999 INFO L87 Difference]: Start difference. First operand 393 states and 687 transitions. Second operand 4 states. [2018-12-08 23:45:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:40,328 INFO L93 Difference]: Finished difference Result 433 states and 747 transitions. [2018-12-08 23:45:40,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:40,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-08 23:45:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:40,330 INFO L225 Difference]: With dead ends: 433 [2018-12-08 23:45:40,330 INFO L226 Difference]: Without dead ends: 433 [2018-12-08 23:45:40,331 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:40,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2018-12-08 23:45:40,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 348. [2018-12-08 23:45:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-12-08 23:45:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 597 transitions. [2018-12-08 23:45:40,342 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 597 transitions. Word has length 12 [2018-12-08 23:45:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:40,342 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 597 transitions. [2018-12-08 23:45:40,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 597 transitions. [2018-12-08 23:45:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 23:45:40,343 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:40,343 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:40,344 INFO L423 AbstractCegarLoop]: === Iteration 3 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:40,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:40,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1538693657, now seen corresponding path program 1 times [2018-12-08 23:45:40,344 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:40,344 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:40,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:40,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:40,414 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-08 23:45:40,415 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:40,425 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-08 23:45:40,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-08 23:45:40,454 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,459 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:40,459 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-08 23:45:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:40,475 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:40,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:40,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:45:40,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:40,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:40,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:40,477 INFO L87 Difference]: Start difference. First operand 348 states and 597 transitions. Second operand 6 states. [2018-12-08 23:45:40,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:40,691 INFO L93 Difference]: Finished difference Result 439 states and 746 transitions. [2018-12-08 23:45:40,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:40,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 23:45:40,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:40,693 INFO L225 Difference]: With dead ends: 439 [2018-12-08 23:45:40,693 INFO L226 Difference]: Without dead ends: 439 [2018-12-08 23:45:40,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:45:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-12-08 23:45:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 342. [2018-12-08 23:45:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-12-08 23:45:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 587 transitions. [2018-12-08 23:45:40,703 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 587 transitions. Word has length 22 [2018-12-08 23:45:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:40,703 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 587 transitions. [2018-12-08 23:45:40,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 587 transitions. [2018-12-08 23:45:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 23:45:40,704 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:40,704 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:40,704 INFO L423 AbstractCegarLoop]: === Iteration 4 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:40,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1538693658, now seen corresponding path program 1 times [2018-12-08 23:45:40,704 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:40,705 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:40,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:40,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:40,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:40,774 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:40,784 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,791 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 23:45:40,826 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:40,827 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:40,828 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 11 treesize of output 4 [2018-12-08 23:45:40,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,841 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:40,841 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 12 treesize of output 21 [2018-12-08 23:45:40,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:40,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:40,850 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-12-08 23:45:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:40,872 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:40,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:40,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:45:40,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:40,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:40,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:40,874 INFO L87 Difference]: Start difference. First operand 342 states and 587 transitions. Second operand 6 states. [2018-12-08 23:45:41,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:41,232 INFO L93 Difference]: Finished difference Result 415 states and 717 transitions. [2018-12-08 23:45:41,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:45:41,233 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 23:45:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:41,234 INFO L225 Difference]: With dead ends: 415 [2018-12-08 23:45:41,234 INFO L226 Difference]: Without dead ends: 415 [2018-12-08 23:45:41,235 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:41,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2018-12-08 23:45:41,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 336. [2018-12-08 23:45:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2018-12-08 23:45:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 577 transitions. [2018-12-08 23:45:41,243 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 577 transitions. Word has length 22 [2018-12-08 23:45:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:41,243 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 577 transitions. [2018-12-08 23:45:41,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 577 transitions. [2018-12-08 23:45:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:45:41,244 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:41,244 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:41,244 INFO L423 AbstractCegarLoop]: === Iteration 5 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:41,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:41,245 INFO L82 PathProgramCache]: Analyzing trace with hash 454863377, now seen corresponding path program 1 times [2018-12-08 23:45:41,245 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:41,245 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:41,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:41,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:41,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:41,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:41,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:41,312 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 23:45:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:41,320 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:41,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:41,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:41,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:41,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:41,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:41,322 INFO L87 Difference]: Start difference. First operand 336 states and 577 transitions. Second operand 4 states. [2018-12-08 23:45:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:41,446 INFO L93 Difference]: Finished difference Result 403 states and 697 transitions. [2018-12-08 23:45:41,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:41,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 23:45:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:41,447 INFO L225 Difference]: With dead ends: 403 [2018-12-08 23:45:41,447 INFO L226 Difference]: Without dead ends: 403 [2018-12-08 23:45:41,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2018-12-08 23:45:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 324. [2018-12-08 23:45:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-12-08 23:45:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 557 transitions. [2018-12-08 23:45:41,451 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 557 transitions. Word has length 23 [2018-12-08 23:45:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:41,452 INFO L480 AbstractCegarLoop]: Abstraction has 324 states and 557 transitions. [2018-12-08 23:45:41,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 557 transitions. [2018-12-08 23:45:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:45:41,452 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:41,452 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:41,453 INFO L423 AbstractCegarLoop]: === Iteration 6 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:41,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:41,453 INFO L82 PathProgramCache]: Analyzing trace with hash 454863378, now seen corresponding path program 1 times [2018-12-08 23:45:41,453 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:41,453 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:41,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:41,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:41,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:41,517 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:41,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:41,520 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-08 23:45:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:41,534 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:41,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:41,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:41,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:41,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:41,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:41,536 INFO L87 Difference]: Start difference. First operand 324 states and 557 transitions. Second operand 4 states. [2018-12-08 23:45:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:41,638 INFO L93 Difference]: Finished difference Result 318 states and 547 transitions. [2018-12-08 23:45:41,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:41,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 23:45:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:41,640 INFO L225 Difference]: With dead ends: 318 [2018-12-08 23:45:41,640 INFO L226 Difference]: Without dead ends: 318 [2018-12-08 23:45:41,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2018-12-08 23:45:41,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 312. [2018-12-08 23:45:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-12-08 23:45:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 537 transitions. [2018-12-08 23:45:41,645 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 537 transitions. Word has length 23 [2018-12-08 23:45:41,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:41,645 INFO L480 AbstractCegarLoop]: Abstraction has 312 states and 537 transitions. [2018-12-08 23:45:41,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:41,645 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 537 transitions. [2018-12-08 23:45:41,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 23:45:41,646 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:41,646 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:41,646 INFO L423 AbstractCegarLoop]: === Iteration 7 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:41,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:41,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1165129085, now seen corresponding path program 1 times [2018-12-08 23:45:41,647 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:41,647 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:41,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:41,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:41,880 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 23 treesize of output 33 [2018-12-08 23:45:41,884 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 24 treesize of output 23 [2018-12-08 23:45:41,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:41,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:41,963 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 23 treesize of output 33 [2018-12-08 23:45:41,966 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 24 treesize of output 23 [2018-12-08 23:45:41,967 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,004 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:42,014 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:45, output treesize:37 [2018-12-08 23:45:42,059 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-12-08 23:45:42,062 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 22 treesize of output 15 [2018-12-08 23:45:42,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,083 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 8 [2018-12-08 23:45:42,084 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,102 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2018-12-08 23:45:42,102 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-12-08 23:45:42,126 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 22 treesize of output 15 [2018-12-08 23:45:42,127 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2018-12-08 23:45:42,142 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,147 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:42,150 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 5 variables, input treesize:51, output treesize:7 [2018-12-08 23:45:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:42,167 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:42,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:42,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-08 23:45:42,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 23:45:42,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 23:45:42,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=105, Unknown=5, NotChecked=0, Total=132 [2018-12-08 23:45:42,169 INFO L87 Difference]: Start difference. First operand 312 states and 537 transitions. Second operand 12 states. [2018-12-08 23:45:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:43,106 INFO L93 Difference]: Finished difference Result 357 states and 612 transitions. [2018-12-08 23:45:43,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 23:45:43,107 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2018-12-08 23:45:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:43,108 INFO L225 Difference]: With dead ends: 357 [2018-12-08 23:45:43,108 INFO L226 Difference]: Without dead ends: 357 [2018-12-08 23:45:43,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=334, Unknown=16, NotChecked=0, Total=506 [2018-12-08 23:45:43,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-12-08 23:45:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 342. [2018-12-08 23:45:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-12-08 23:45:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 587 transitions. [2018-12-08 23:45:43,115 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 587 transitions. Word has length 28 [2018-12-08 23:45:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:43,115 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 587 transitions. [2018-12-08 23:45:43,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 23:45:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 587 transitions. [2018-12-08 23:45:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-08 23:45:43,117 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:43,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:43,117 INFO L423 AbstractCegarLoop]: === Iteration 8 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:43,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1966173310, now seen corresponding path program 1 times [2018-12-08 23:45:43,118 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:43,118 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:43,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:43,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:43,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:43,245 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,247 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,247 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 23:45:43,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-08 23:45:43,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,264 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:11 [2018-12-08 23:45:43,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 23:45:43,291 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,297 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:16 [2018-12-08 23:45:43,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 23:45:43,325 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:43,330 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:16 [2018-12-08 23:45:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:43,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:43,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:43,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:43,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:45:43,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:45:43,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:43,349 INFO L87 Difference]: Start difference. First operand 342 states and 587 transitions. Second operand 7 states. [2018-12-08 23:45:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:43,715 INFO L93 Difference]: Finished difference Result 409 states and 681 transitions. [2018-12-08 23:45:43,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:45:43,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2018-12-08 23:45:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:43,716 INFO L225 Difference]: With dead ends: 409 [2018-12-08 23:45:43,716 INFO L226 Difference]: Without dead ends: 409 [2018-12-08 23:45:43,716 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-12-08 23:45:43,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 353. [2018-12-08 23:45:43,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2018-12-08 23:45:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 623 transitions. [2018-12-08 23:45:43,720 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 623 transitions. Word has length 43 [2018-12-08 23:45:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:43,721 INFO L480 AbstractCegarLoop]: Abstraction has 353 states and 623 transitions. [2018-12-08 23:45:43,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:45:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 623 transitions. [2018-12-08 23:45:43,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-08 23:45:43,721 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:43,722 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:43,722 INFO L423 AbstractCegarLoop]: === Iteration 9 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:43,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:43,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1966173309, now seen corresponding path program 1 times [2018-12-08 23:45:43,723 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:43,723 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:43,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:43,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:43,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:43,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:43,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,882 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 23:45:43,894 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:43,894 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 12 treesize of output 15 [2018-12-08 23:45:43,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,915 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:43,916 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:43,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-12-08 23:45:43,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:43,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:43,934 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:30 [2018-12-08 23:45:43,966 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:43,968 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:43,970 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:43,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 34 [2018-12-08 23:45:43,971 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:44,000 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:44,001 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:44,002 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:44,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2018-12-08 23:45:44,004 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:44,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:44,019 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:23 [2018-12-08 23:45:44,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:44,095 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:44,101 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:44,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 41 [2018-12-08 23:45:44,119 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-12-08 23:45:44,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2018-12-08 23:45:44,183 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:83 [2018-12-08 23:45:44,679 WARN L180 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-12-08 23:45:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:44,734 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:44,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:44,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:44,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:45:44,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:45:44,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:44,737 INFO L87 Difference]: Start difference. First operand 353 states and 623 transitions. Second operand 7 states. [2018-12-08 23:45:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:45,125 INFO L93 Difference]: Finished difference Result 356 states and 575 transitions. [2018-12-08 23:45:45,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:45:45,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2018-12-08 23:45:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:45,126 INFO L225 Difference]: With dead ends: 356 [2018-12-08 23:45:45,126 INFO L226 Difference]: Without dead ends: 356 [2018-12-08 23:45:45,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:45,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-12-08 23:45:45,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 314. [2018-12-08 23:45:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-12-08 23:45:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 531 transitions. [2018-12-08 23:45:45,132 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 531 transitions. Word has length 43 [2018-12-08 23:45:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:45,132 INFO L480 AbstractCegarLoop]: Abstraction has 314 states and 531 transitions. [2018-12-08 23:45:45,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:45:45,133 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 531 transitions. [2018-12-08 23:45:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-08 23:45:45,134 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:45,134 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:45,134 INFO L423 AbstractCegarLoop]: === Iteration 10 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:45,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:45,134 INFO L82 PathProgramCache]: Analyzing trace with hash -816687981, now seen corresponding path program 1 times [2018-12-08 23:45:45,135 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:45,135 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:45,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:45,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:45,278 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:45:45,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:45,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:45,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:45,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:45,281 INFO L87 Difference]: Start difference. First operand 314 states and 531 transitions. Second operand 6 states. [2018-12-08 23:45:45,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:45,321 INFO L93 Difference]: Finished difference Result 171 states and 270 transitions. [2018-12-08 23:45:45,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:45,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-12-08 23:45:45,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:45,322 INFO L225 Difference]: With dead ends: 171 [2018-12-08 23:45:45,322 INFO L226 Difference]: Without dead ends: 171 [2018-12-08 23:45:45,322 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:45,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-12-08 23:45:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-12-08 23:45:45,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-12-08 23:45:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 270 transitions. [2018-12-08 23:45:45,325 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 270 transitions. Word has length 48 [2018-12-08 23:45:45,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:45,325 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 270 transitions. [2018-12-08 23:45:45,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:45,325 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 270 transitions. [2018-12-08 23:45:45,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-08 23:45:45,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:45,326 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2018-12-08 23:45:45,326 INFO L423 AbstractCegarLoop]: === Iteration 11 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:45,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:45,326 INFO L82 PathProgramCache]: Analyzing trace with hash 867401402, now seen corresponding path program 1 times [2018-12-08 23:45:45,327 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:45,327 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:45,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:45,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:45,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 23:45:45,500 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 23:45:45,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,503 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,510 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,510 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:13 [2018-12-08 23:45:45,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2018-12-08 23:45:45,544 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,550 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-12-08 23:45:45,658 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 25 treesize of output 35 [2018-12-08 23:45:45,664 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 21 treesize of output 23 [2018-12-08 23:45:45,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-12-08 23:45:45,730 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,742 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:45,751 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-12-08 23:45:45,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-12-08 23:45:45,821 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 24 treesize of output 17 [2018-12-08 23:45:45,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-12-08 23:45:45,843 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2018-12-08 23:45:45,860 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:45,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:45,868 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:33, output treesize:13 [2018-12-08 23:45:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:45,902 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:46,093 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 9 treesize of output 7 [2018-12-08 23:45:46,096 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-08 23:45:46,097 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:46,102 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:46,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-12-08 23:45:46,144 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:44 [2018-12-08 23:45:46,250 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-12-08 23:45:46,250 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,267 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-12-08 23:45:46,267 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 23:45:46,296 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:47, output treesize:7 [2018-12-08 23:45:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:46,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:46,438 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:45:46,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:46,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:46,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 23:45:46,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 23:45:46,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,540 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,547 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:9 [2018-12-08 23:45:46,552 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:46,554 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:46,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 35 [2018-12-08 23:45:46,554 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:46,565 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:24 [2018-12-08 23:45:46,712 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 34 treesize of output 42 [2018-12-08 23:45:46,715 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 35 treesize of output 34 [2018-12-08 23:45:46,716 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,770 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:46,782 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:41, output treesize:37 [2018-12-08 23:45:46,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 35 [2018-12-08 23:45:46,886 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 31 treesize of output 24 [2018-12-08 23:45:46,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,912 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 27 treesize of output 11 [2018-12-08 23:45:46,912 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:46,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:46,928 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:44, output treesize:18 [2018-12-08 23:45:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:46,982 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:47,197 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 12 treesize of output 10 [2018-12-08 23:45:47,200 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2018-12-08 23:45:47,200 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:47,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:47,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 4 xjuncts. [2018-12-08 23:45:47,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:83 [2018-12-08 23:45:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:47,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-08 23:45:47,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11, 11] total 30 [2018-12-08 23:45:47,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-12-08 23:45:47,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-12-08 23:45:47,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2018-12-08 23:45:47,451 INFO L87 Difference]: Start difference. First operand 171 states and 270 transitions. Second operand 31 states. [2018-12-08 23:45:49,257 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2018-12-08 23:45:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:50,558 INFO L93 Difference]: Finished difference Result 233 states and 373 transitions. [2018-12-08 23:45:50,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 23:45:50,559 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 48 [2018-12-08 23:45:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:50,559 INFO L225 Difference]: With dead ends: 233 [2018-12-08 23:45:50,560 INFO L226 Difference]: Without dead ends: 233 [2018-12-08 23:45:50,560 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=429, Invalid=1551, Unknown=0, NotChecked=0, Total=1980 [2018-12-08 23:45:50,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-12-08 23:45:50,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 168. [2018-12-08 23:45:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-12-08 23:45:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 265 transitions. [2018-12-08 23:45:50,562 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 265 transitions. Word has length 48 [2018-12-08 23:45:50,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:50,562 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 265 transitions. [2018-12-08 23:45:50,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-12-08 23:45:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 265 transitions. [2018-12-08 23:45:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-08 23:45:50,562 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:50,562 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2018-12-08 23:45:50,563 INFO L423 AbstractCegarLoop]: === Iteration 12 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:45:50,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:50,563 INFO L82 PathProgramCache]: Analyzing trace with hash 867401403, now seen corresponding path program 1 times [2018-12-08 23:45:50,563 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:45:50,563 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:45:50,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:50,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:50,740 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:50,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:50,755 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,766 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,766 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:23 [2018-12-08 23:45:50,803 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:50,805 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:50,805 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 11 treesize of output 4 [2018-12-08 23:45:50,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,825 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 12 treesize of output 15 [2018-12-08 23:45:50,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:50,840 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:27 [2018-12-08 23:45:50,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 23:45:50,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 23:45:50,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,931 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,957 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 23:45:50,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 23:45:50,960 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,962 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:50,977 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:50,977 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:44 [2018-12-08 23:45:51,104 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:51,105 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:51,106 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2018-12-08 23:45:51,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 38 [2018-12-08 23:45:51,128 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:51,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:48 [2018-12-08 23:45:51,303 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 33 treesize of output 41 [2018-12-08 23:45:51,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2018-12-08 23:45:51,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,363 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 30 treesize of output 29 [2018-12-08 23:45:51,363 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,386 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,435 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 23 treesize of output 33 [2018-12-08 23:45:51,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-12-08 23:45:51,439 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,475 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:51,489 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:62, output treesize:54 [2018-12-08 23:45:51,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-12-08 23:45:51,562 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 22 treesize of output 15 [2018-12-08 23:45:51,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2018-12-08 23:45:51,593 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2018-12-08 23:45:51,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 30 treesize of output 23 [2018-12-08 23:45:51,635 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 23 treesize of output 14 [2018-12-08 23:45:51,661 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,685 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 26 treesize of output 10 [2018-12-08 23:45:51,686 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,694 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:51,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:51,702 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:68, output treesize:20 [2018-12-08 23:45:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:51,759 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:52,968 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-12-08 23:45:52,971 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 25 treesize of output 21 [2018-12-08 23:45:52,974 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 23:45:52,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:52,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:52,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-12-08 23:45:52,984 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 23:45:52,986 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:52,990 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:52,996 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 [2018-12-08 23:45:53,000 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 23:45:53,002 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:53,008 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:53,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-12-08 23:45:53,176 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-08 23:45:53,177 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:53,182 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:53,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-12-08 23:45:53,186 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-08 23:45:53,187 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:53,191 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:53,327 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-12-08 23:45:53,331 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-12-08 23:45:53,331 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,344 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,347 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 28 treesize of output 26 [2018-12-08 23:45:53,350 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-12-08 23:45:53,351 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,365 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-12-08 23:45:53,526 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-12-08 23:45:53,526 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,539 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-12-08 23:45:53,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-12-08 23:45:53,545 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,558 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:53,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 13 dim-0 vars, and 9 xjuncts. [2018-12-08 23:45:53,696 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 7 variables, input treesize:104, output treesize:132 [2018-12-08 23:45:54,116 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2018-12-08 23:45:54,127 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,128 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,128 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 16 treesize of output 7 [2018-12-08 23:45:54,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:54,223 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,224 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,224 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 23 treesize of output 14 [2018-12-08 23:45:54,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:54,325 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,325 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,326 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 20 treesize of output 11 [2018-12-08 23:45:54,326 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:54,404 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,405 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,405 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 26 treesize of output 17 [2018-12-08 23:45:54,405 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:54,485 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,485 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:54,485 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 18 treesize of output 9 [2018-12-08 23:45:54,486 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:54,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 5 xjuncts. [2018-12-08 23:45:54,558 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 12 variables, input treesize:104, output treesize:47 [2018-12-08 23:45:54,848 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2018-12-08 23:45:55,392 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-08 23:45:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:55,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:55,555 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:45:55,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:55,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:55,599 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 23:45:55,599 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:55,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:55,608 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-12-08 23:45:55,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:55,844 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 12 treesize of output 15 [2018-12-08 23:45:55,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:55,864 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:55,865 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:55,866 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 13 treesize of output 4 [2018-12-08 23:45:55,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:55,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:55,882 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:24 [2018-12-08 23:45:56,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 23:45:56,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 23:45:56,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 23:45:56,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 23:45:56,146 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,149 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,168 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:56,168 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:41 [2018-12-08 23:45:56,487 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:56,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 38 [2018-12-08 23:45:56,488 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,509 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:56,510 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:45:56,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2018-12-08 23:45:56,511 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:56,530 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:45 [2018-12-08 23:45:56,796 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 23 treesize of output 33 [2018-12-08 23:45:56,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2018-12-08 23:45:56,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,857 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-12-08 23:45:56,857 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,877 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,932 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 35 treesize of output 43 [2018-12-08 23:45:56,935 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 36 treesize of output 35 [2018-12-08 23:45:56,935 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,972 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:56,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:56,988 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:64, output treesize:56 [2018-12-08 23:45:57,100 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-12-08 23:45:57,102 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 22 treesize of output 15 [2018-12-08 23:45:57,103 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,126 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 8 [2018-12-08 23:45:57,126 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2018-12-08 23:45:57,149 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2018-12-08 23:45:57,187 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 32 treesize of output 25 [2018-12-08 23:45:57,188 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 treesize of output 16 [2018-12-08 23:45:57,221 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,246 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 28 treesize of output 12 [2018-12-08 23:45:57,246 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,256 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:57,263 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:70, output treesize:22 [2018-12-08 23:45:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:57,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:57,762 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-12-08 23:45:57,765 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 25 treesize of output 21 [2018-12-08 23:45:57,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 23:45:57,769 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-12-08 23:45:57,778 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 23:45:57,779 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,784 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,790 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 [2018-12-08 23:45:57,796 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 23:45:57,797 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,805 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-12-08 23:45:57,980 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-08 23:45:57,981 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,986 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-12-08 23:45:57,991 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-08 23:45:57,992 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:57,996 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:45:58,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-12-08 23:45:58,126 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-12-08 23:45:58,126 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,140 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,143 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 28 treesize of output 26 [2018-12-08 23:45:58,147 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-12-08 23:45:58,147 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,166 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-12-08 23:45:58,324 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-12-08 23:45:58,324 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,338 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-12-08 23:45:58,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-12-08 23:45:58,345 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,357 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:45:58,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 13 dim-0 vars, and 9 xjuncts. [2018-12-08 23:45:58,499 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 7 variables, input treesize:104, output treesize:132 [2018-12-08 23:45:58,711 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:58,712 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:58,712 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 38 treesize of output 29 [2018-12-08 23:45:58,712 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:58,871 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:58,871 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:58,872 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 48 treesize of output 39 [2018-12-08 23:45:58,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:58,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 23:45:58,943 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:132, output treesize:66 [2018-12-08 23:45:59,418 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:59,418 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:59,419 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 45 treesize of output 36 [2018-12-08 23:45:59,419 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:59,479 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:59,479 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 23:45:59,480 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 45 treesize of output 36 [2018-12-08 23:45:59,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:45:59,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-08 23:45:59,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:91, output treesize:73 [2018-12-08 23:46:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:46:00,082 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-08 23:46:00,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 15, 15] total 42 [2018-12-08 23:46:00,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-12-08 23:46:00,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-12-08 23:46:00,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1591, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 23:46:00,083 INFO L87 Difference]: Start difference. First operand 168 states and 265 transitions. Second operand 43 states. [2018-12-08 23:46:01,944 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2018-12-08 23:46:02,756 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2018-12-08 23:46:03,302 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2018-12-08 23:46:03,633 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 61 [2018-12-08 23:46:04,187 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67 [2018-12-08 23:46:04,613 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2018-12-08 23:46:04,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:46:04,995 INFO L93 Difference]: Finished difference Result 230 states and 368 transitions. [2018-12-08 23:46:04,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 23:46:04,996 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 48 [2018-12-08 23:46:04,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:46:04,997 INFO L225 Difference]: With dead ends: 230 [2018-12-08 23:46:04,997 INFO L226 Difference]: Without dead ends: 230 [2018-12-08 23:46:04,997 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 143 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=630, Invalid=2562, Unknown=0, NotChecked=0, Total=3192 [2018-12-08 23:46:04,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-12-08 23:46:04,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 165. [2018-12-08 23:46:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-12-08 23:46:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 260 transitions. [2018-12-08 23:46:04,999 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 260 transitions. Word has length 48 [2018-12-08 23:46:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:46:04,999 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 260 transitions. [2018-12-08 23:46:04,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-12-08 23:46:04,999 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 260 transitions. [2018-12-08 23:46:04,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-08 23:46:05,000 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:46:05,000 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:46:05,000 INFO L423 AbstractCegarLoop]: === Iteration 13 === [buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr12REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr8REQUIRES_VIOLATION, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr2REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, buildErr12REQUIRES_VIOLATION, buildErr2REQUIRES_VIOLATION, buildErr13REQUIRES_VIOLATION, buildErr3REQUIRES_VIOLATION, buildErr10REQUIRES_VIOLATION, buildErr0REQUIRES_VIOLATION, buildErr11REQUIRES_VIOLATION, buildErr1REQUIRES_VIOLATION, buildErr7REQUIRES_VIOLATION, buildErr8REQUIRES_VIOLATION, buildErr9REQUIRES_VIOLATION, buildErr4REQUIRES_VIOLATION, buildErr5REQUIRES_VIOLATION, buildErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, deleteErr1REQUIRES_VIOLATION, deleteErr0REQUIRES_VIOLATION, deleteErr6ASSERT_VIOLATIONMEMORY_FREE, deleteErr11ASSERT_VIOLATIONMEMORY_FREE, deleteErr5ASSERT_VIOLATIONMEMORY_FREE, deleteErr9REQUIRES_VIOLATION, deleteErr8REQUIRES_VIOLATION, deleteErr10ASSERT_VIOLATIONMEMORY_FREE, deleteErr7ASSERT_VIOLATIONMEMORY_FREE, deleteErr3REQUIRES_VIOLATION, deleteErr2REQUIRES_VIOLATION, deleteErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-08 23:46:05,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:46:05,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1191617659, now seen corresponding path program 1 times [2018-12-08 23:46:05,000 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 23:46:05,000 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3825a8c-0744-4399-847f-0266f7aee1bc/bin-2019/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 23:46:05,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:46:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:46:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:46:05,374 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 23:46:05,419 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 23:46:05,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:46:05 BasicIcfg [2018-12-08 23:46:05,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:46:05,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:46:05,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:46:05,421 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:46:05,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:39" (3/4) ... [2018-12-08 23:46:05,424 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 23:46:05,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:46:05,425 INFO L168 Benchmark]: Toolchain (without parser) took 26862.99 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 354.9 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -271.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,425 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:05,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.73 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,425 INFO L168 Benchmark]: Boogie Preprocessor took 20.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:05,426 INFO L168 Benchmark]: RCFGBuilder took 358.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,426 INFO L168 Benchmark]: TraceAbstraction took 26065.29 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -168.5 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,426 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:05,427 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.73 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.43 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 358.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26065.29 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -168.5 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.26 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1069]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1069. Possible FailurePath: [L1070] -1 pthread_t id1, id2; [L1071] -1 struct item *list = ((void *)0); [L1072] FCALL, FORK -1 pthread_create(&id1, ((void *)0), build, list) [L1048] 0 struct item *list = (struct item *)plist; [L1073] -1 \read(id1) [L1042] 0 struct item *elem = malloc(sizeof *elem); [L1043] EXPR 0 \read(**plist) [L1043] 0 elem->next = *plist [L1044] EXPR 0 elem->next [L1044] EXPR 0 (elem->next) ? elem->next->data : malloc(sizeof *elem) [L1044] EXPR 0 (elem->next) ? elem->next->data : malloc(sizeof *elem) [L1044] 0 elem->data = (elem->next) ? elem->next->data : malloc(sizeof *elem) [L1045] 0 *plist = elem [L1051] COND FALSE 0 !(__VERIFIER_nondet_int()) [L1073] FCALL, JOIN 0 pthread_join(id1, ((void *)0)) [L1074] FCALL, FORK -1 pthread_create(&id2, ((void *)0), delete, list) VAL [plist={0:0}] [L1075] -1 \read(id2) VAL [plist={0:0}] [L1055] 1 struct item *list = (struct item *)plist; VAL [list={0:0}, plist={0:0}, plist={0:0}] [L1056] COND FALSE 1 !(\read(*list)) VAL [list={0:0}, plist={0:0}, plist={0:0}] [L1062] COND FALSE 1 !(\read(*list)) VAL [list={0:0}, plist={0:0}, plist={0:0}] [L1075] FCALL, JOIN 1 pthread_join(id2, ((void *)0)) VAL [\result={0:0}, list={0:0}, plist={0:0}, plist={0:0}] [L1076] -1 return 0; VAL [\result={0:0}, list={0:0}, plist={0:0}, plist={0:0}] [L1076] -1 return 0; VAL [\result={0:0}, list={0:0}, plist={0:0}, plist={0:0}] [L1076] -1 return 0; VAL [\result={0:0}, list={0:0}, plist={0:0}, plist={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 206 locations, 61 error locations. UNSAFE Result, 25.9s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 11.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 987 SDtfs, 3028 SDslu, 3201 SDs, 0 SdLazy, 2293 SolverSat, 209 SolverUnsat, 25 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 700 GetRequests, 524 SyntacticMatches, 11 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 662 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 642 ConstructedInterpolants, 146 QuantifiedInterpolants, 474561 SizeOfPredicates, 153 NumberOfNonLiveVariables, 1336 ConjunctsInSsa, 178 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 8/80 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...