./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/compact_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/compact_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0072accc4a1539c47a12fc2f994400e0f1f9dec ........................................................................................................................................................................................................................................................................................................................................................... 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_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/compact_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0072accc4a1539c47a12fc2f994400e0f1f9dec ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:01:38,119 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:01:38,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:01:38,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:01:38,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:01:38,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:01:38,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:01:38,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:01:38,132 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:01:38,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:01:38,133 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:01:38,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:01:38,134 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:01:38,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:01:38,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:01:38,136 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:01:38,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:01:38,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:01:38,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:01:38,139 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:01:38,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:01:38,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:01:38,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:01:38,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:01:38,143 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:01:38,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:01:38,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:01:38,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:01:38,145 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:01:38,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:01:38,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:01:38,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:01:38,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:01:38,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:01:38,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:01:38,149 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:01:38,149 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:01:38,160 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:01:38,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:01:38,161 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:01:38,161 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:01:38,161 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:01:38,161 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:01:38,161 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:01:38,161 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:01:38,161 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:01:38,161 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:01:38,162 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:01:38,162 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:01:38,162 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:01:38,162 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:01:38,163 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:01:38,164 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:01:38,165 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:01:38,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:01:38,165 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:01:38,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:01:38,166 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:01:38,166 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_3ea88afa-7802-4e12-8d80-29bfb2c2d959/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 ! call(__VERIFIER_error())) ) 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 -> b0072accc4a1539c47a12fc2f994400e0f1f9dec [2018-11-18 11:01:38,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:01:38,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:01:38,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:01:38,203 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:01:38,203 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:01:38,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/../../sv-benchmarks/c/loops/compact_false-unreach-call.c [2018-11-18 11:01:38,249 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/b8e3d68bd/b3ccfbdbe701465f8f7e792483a11ed3/FLAG2ffa8b34e [2018-11-18 11:01:38,586 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:01:38,587 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/sv-benchmarks/c/loops/compact_false-unreach-call.c [2018-11-18 11:01:38,592 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/b8e3d68bd/b3ccfbdbe701465f8f7e792483a11ed3/FLAG2ffa8b34e [2018-11-18 11:01:39,007 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/b8e3d68bd/b3ccfbdbe701465f8f7e792483a11ed3 [2018-11-18 11:01:39,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:01:39,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:01:39,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:01:39,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:01:39,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:01:39,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37764a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39, skipping insertion in model container [2018-11-18 11:01:39,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:01:39,039 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:01:39,139 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:01:39,143 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:01:39,153 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:01:39,165 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:01:39,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39 WrapperNode [2018-11-18 11:01:39,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:01:39,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:01:39,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:01:39,166 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:01:39,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:01:39,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:01:39,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:01:39,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:01:39,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... [2018-11-18 11:01:39,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:01:39,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:01:39,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:01:39,197 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:01:39,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/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 [2018-11-18 11:01:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:01:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:01:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:01:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:01:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:01:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:01:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:01:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:01:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:01:39,401 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:01:39,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:39 BoogieIcfgContainer [2018-11-18 11:01:39,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:01:39,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:01:39,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:01:39,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:01:39,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:01:39" (1/3) ... [2018-11-18 11:01:39,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e131cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:39, skipping insertion in model container [2018-11-18 11:01:39,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:39" (2/3) ... [2018-11-18 11:01:39,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e131cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:39, skipping insertion in model container [2018-11-18 11:01:39,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:39" (3/3) ... [2018-11-18 11:01:39,406 INFO L112 eAbstractionObserver]: Analyzing ICFG compact_false-unreach-call.c [2018-11-18 11:01:39,413 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:01:39,419 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:01:39,432 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:01:39,455 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:01:39,455 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:01:39,455 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:01:39,455 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:01:39,455 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:01:39,455 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:01:39,455 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:01:39,455 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:01:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-18 11:01:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 11:01:39,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:39,469 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:39,471 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:39,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:39,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1055035870, now seen corresponding path program 1 times [2018-11-18 11:01:39,475 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:39,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:39,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:39,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:01:39,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:01:39,565 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:01:39,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:01:39,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:01:39,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:01:39,577 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-18 11:01:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:39,588 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2018-11-18 11:01:39,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:01:39,589 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 11:01:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:39,595 INFO L225 Difference]: With dead ends: 31 [2018-11-18 11:01:39,595 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 11:01:39,597 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:01:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 11:01:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 11:01:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 11:01:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 11:01:39,622 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-18 11:01:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:39,623 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 11:01:39,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:01:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 11:01:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:01:39,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:39,624 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:39,624 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:39,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:39,624 INFO L82 PathProgramCache]: Analyzing trace with hash 11618701, now seen corresponding path program 1 times [2018-11-18 11:01:39,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:39,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:39,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:39,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:39,626 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:39,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:01:39,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:01:39,696 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:01:39,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:01:39,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:01:39,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:01:39,698 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 11:01:39,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:39,735 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-18 11:01:39,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:01:39,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 11:01:39,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:39,736 INFO L225 Difference]: With dead ends: 30 [2018-11-18 11:01:39,736 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 11:01:39,737 INFO L604 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 [2018-11-18 11:01:39,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 11:01:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-11-18 11:01:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 11:01:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-18 11:01:39,740 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2018-11-18 11:01:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:39,740 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-18 11:01:39,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:01:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-18 11:01:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:01:39,741 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:39,741 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:39,741 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:39,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:39,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1581400739, now seen corresponding path program 1 times [2018-11-18 11:01:39,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:39,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:39,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:39,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:39,742 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:01:39,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:39,818 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:01:39,819 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-18 11:01:39,820 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [16], [20], [24], [27], [29], [33], [35], [39], [42], [43], [44] [2018-11-18 11:01:39,840 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:01:39,841 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:01:39,895 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) 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 [2018-11-18 11:01:39,897 INFO L168 Benchmark]: Toolchain (without parser) took 887.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:39,898 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:01:39,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.17 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:39,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.42 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:39,902 INFO L168 Benchmark]: Boogie Preprocessor took 16.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:01:39,902 INFO L168 Benchmark]: RCFGBuilder took 203.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:39,903 INFO L168 Benchmark]: TraceAbstraction took 495.40 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:39,906 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.17 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.42 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 203.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 495.40 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): 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 0.1.23-5842f4b [2018-11-18 11:01:41,323 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:01:41,325 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:01:41,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:01:41,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:01:41,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:01:41,335 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:01:41,336 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:01:41,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:01:41,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:01:41,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:01:41,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:01:41,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:01:41,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:01:41,340 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:01:41,341 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:01:41,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:01:41,343 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:01:41,344 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:01:41,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:01:41,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:01:41,347 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:01:41,348 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:01:41,349 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:01:41,349 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:01:41,349 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:01:41,350 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:01:41,351 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:01:41,351 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:01:41,352 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:01:41,352 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:01:41,352 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:01:41,353 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:01:41,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:01:41,353 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:01:41,354 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:01:41,354 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 11:01:41,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:01:41,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:01:41,365 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:01:41,365 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:01:41,365 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:01:41,365 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:01:41,365 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:01:41,365 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:01:41,366 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:01:41,366 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:01:41,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:01:41,366 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:01:41,366 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:01:41,367 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:01:41,368 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:01:41,368 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:01:41,368 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:01:41,368 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:01:41,368 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:01:41,368 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:01:41,368 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:01:41,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:01:41,369 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/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 ! call(__VERIFIER_error())) ) 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 -> b0072accc4a1539c47a12fc2f994400e0f1f9dec [2018-11-18 11:01:41,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:01:41,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:01:41,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:01:41,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:01:41,415 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:01:41,415 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/../../sv-benchmarks/c/loops/compact_false-unreach-call.c [2018-11-18 11:01:41,459 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/64705fa53/2ae199eae6c846f281eeb30ba5b5db17/FLAG547ba1048 [2018-11-18 11:01:41,787 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:01:41,788 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/sv-benchmarks/c/loops/compact_false-unreach-call.c [2018-11-18 11:01:41,791 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/64705fa53/2ae199eae6c846f281eeb30ba5b5db17/FLAG547ba1048 [2018-11-18 11:01:42,217 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/data/64705fa53/2ae199eae6c846f281eeb30ba5b5db17 [2018-11-18 11:01:42,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:01:42,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:01:42,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:01:42,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:01:42,223 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:01:42,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbcbef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42, skipping insertion in model container [2018-11-18 11:01:42,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:01:42,244 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:01:42,355 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:01:42,360 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:01:42,371 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:01:42,385 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:01:42,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42 WrapperNode [2018-11-18 11:01:42,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:01:42,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:01:42,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:01:42,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:01:42,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:01:42,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:01:42,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:01:42,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:01:42,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... [2018-11-18 11:01:42,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:01:42,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:01:42,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:01:42,422 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:01:42,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/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 [2018-11-18 11:01:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:01:42,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:01:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:01:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-18 11:01:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:01:42,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:01:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:01:42,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:01:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-18 11:01:42,654 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:01:42,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:42 BoogieIcfgContainer [2018-11-18 11:01:42,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:01:42,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:01:42,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:01:42,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:01:42,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:01:42" (1/3) ... [2018-11-18 11:01:42,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f35936c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:42, skipping insertion in model container [2018-11-18 11:01:42,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:42" (2/3) ... [2018-11-18 11:01:42,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f35936c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:42, skipping insertion in model container [2018-11-18 11:01:42,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:42" (3/3) ... [2018-11-18 11:01:42,660 INFO L112 eAbstractionObserver]: Analyzing ICFG compact_false-unreach-call.c [2018-11-18 11:01:42,668 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:01:42,674 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:01:42,685 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:01:42,704 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:01:42,705 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:01:42,705 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:01:42,705 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:01:42,705 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:01:42,706 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:01:42,706 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:01:42,706 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:01:42,706 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:01:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-18 11:01:42,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 11:01:42,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:42,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:42,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:42,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:42,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1055035870, now seen corresponding path program 1 times [2018-11-18 11:01:42,727 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:01:42,727 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:42,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:42,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:42,792 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:01:42,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:01:42,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:01:42,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:01:42,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:01:42,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:01:42,807 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-18 11:01:42,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:42,817 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2018-11-18 11:01:42,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:01:42,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 11:01:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:42,823 INFO L225 Difference]: With dead ends: 31 [2018-11-18 11:01:42,824 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 11:01:42,825 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:01:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 11:01:42,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 11:01:42,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 11:01:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 11:01:42,847 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-18 11:01:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:42,847 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 11:01:42,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:01:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 11:01:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:01:42,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:42,848 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:42,848 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:42,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:42,849 INFO L82 PathProgramCache]: Analyzing trace with hash 11618701, now seen corresponding path program 1 times [2018-11-18 11:01:42,849 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:01:42,849 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:42,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:42,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:42,911 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:01:42,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:01:42,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:01:42,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:01:42,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:01:42,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:01:42,913 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 11:01:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:42,936 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-18 11:01:42,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:01:42,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 11:01:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:42,937 INFO L225 Difference]: With dead ends: 30 [2018-11-18 11:01:42,937 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 11:01:42,938 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:01:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 11:01:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-11-18 11:01:42,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 11:01:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-18 11:01:42,941 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2018-11-18 11:01:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:42,941 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-18 11:01:42,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:01:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-18 11:01:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:01:42,942 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:42,942 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:42,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:42,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:42,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1581400739, now seen corresponding path program 1 times [2018-11-18 11:01:42,942 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:01:42,942 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:42,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:42,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:01:43,033 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:01:43,066 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:43,066 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:01:43,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:43,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:01:43,099 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:01:43,163 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:01:43,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 5] total 7 [2018-11-18 11:01:43,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:01:43,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:01:43,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:01:43,165 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2018-11-18 11:01:43,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:43,253 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2018-11-18 11:01:43,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:01:43,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 11:01:43,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:43,254 INFO L225 Difference]: With dead ends: 50 [2018-11-18 11:01:43,254 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 11:01:43,255 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:01:43,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 11:01:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 11:01:43,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 11:01:43,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-11-18 11:01:43,260 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 19 [2018-11-18 11:01:43,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:43,261 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-11-18 11:01:43,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:01:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-11-18 11:01:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 11:01:43,262 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:43,262 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:43,262 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:43,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:43,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1325256881, now seen corresponding path program 2 times [2018-11-18 11:01:43,263 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:01:43,263 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:43,275 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 11:01:43,315 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:01:43,315 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:01:43,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 11:01:43,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 11:01:43,510 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:43,511 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:01:43,522 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:01:43,548 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:01:43,549 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:01:43,552 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 11:01:43,565 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 11:01:43,728 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:01:43,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 8] total 16 [2018-11-18 11:01:43,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 11:01:43,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 11:01:43,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2018-11-18 11:01:43,730 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 16 states. [2018-11-18 11:01:44,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:44,112 INFO L93 Difference]: Finished difference Result 104 states and 117 transitions. [2018-11-18 11:01:44,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 11:01:44,113 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2018-11-18 11:01:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:44,114 INFO L225 Difference]: With dead ends: 104 [2018-11-18 11:01:44,114 INFO L226 Difference]: Without dead ends: 83 [2018-11-18 11:01:44,114 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=265, Unknown=0, NotChecked=0, Total=420 [2018-11-18 11:01:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-18 11:01:44,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-11-18 11:01:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-18 11:01:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2018-11-18 11:01:44,121 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 40 [2018-11-18 11:01:44,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:44,121 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2018-11-18 11:01:44,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 11:01:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2018-11-18 11:01:44,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-11-18 11:01:44,123 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:44,123 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:44,124 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:44,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:44,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1942679655, now seen corresponding path program 3 times [2018-11-18 11:01:44,124 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:01:44,124 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:44,145 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 11:01:45,397 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 11:01:45,397 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:01:45,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 11:01:45,523 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 11:01:46,037 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:46,037 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:01:46,043 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 11:01:46,638 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 11:01:46,639 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:01:46,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 11:01:46,668 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 11:01:46,718 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:01:46,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13, 14] total 25 [2018-11-18 11:01:46,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 11:01:46,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 11:01:46,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:01:46,720 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 25 states. [2018-11-18 11:01:48,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:48,338 INFO L93 Difference]: Finished difference Result 212 states and 237 transitions. [2018-11-18 11:01:48,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 11:01:48,338 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 82 [2018-11-18 11:01:48,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:48,340 INFO L225 Difference]: With dead ends: 212 [2018-11-18 11:01:48,340 INFO L226 Difference]: Without dead ends: 167 [2018-11-18 11:01:48,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=454, Invalid=806, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 11:01:48,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-18 11:01:48,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-11-18 11:01:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-18 11:01:48,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2018-11-18 11:01:48,350 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 82 [2018-11-18 11:01:48,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:48,351 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2018-11-18 11:01:48,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 11:01:48,351 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2018-11-18 11:01:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-18 11:01:48,352 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:48,353 INFO L375 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:48,353 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:01:48,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:48,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1910087213, now seen corresponding path program 4 times [2018-11-18 11:01:48,353 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:01:48,353 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ea88afa-7802-4e12-8d80-29bfb2c2d959/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:48,366 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 11:01:48,581 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:01:48,582 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.partitionStmtsAccordingToConstantSize(AnnotateAndAsserterWithStmtOrderPrioritization.java:377) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.annotateAndAssertStmtsAccording5Heuristic(AnnotateAndAsserterWithStmtOrderPrioritization.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserterWithStmtOrderPrioritization.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 11:01:48,584 INFO L168 Benchmark]: Toolchain (without parser) took 6364.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 949.7 MB in the beginning and 991.5 MB in the end (delta: -41.8 MB). Peak memory consumption was 152.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:48,585 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:01:48,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:48,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:01:48,586 INFO L168 Benchmark]: Boogie Preprocessor took 19.44 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:01:48,586 INFO L168 Benchmark]: RCFGBuilder took 233.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:48,586 INFO L168 Benchmark]: TraceAbstraction took 5927.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 991.5 MB in the end (delta: 111.2 MB). Peak memory consumption was 174.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:48,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.44 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 233.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5927.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 991.5 MB in the end (delta: 111.2 MB). Peak memory consumption was 174.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...