./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/eureka_01_true-unreach-call.i --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_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/eureka_01_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 f7402de8c18187e6b78675847a190de125c5cd49 ................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/eureka_01_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 f7402de8c18187e6b78675847a190de125c5cd49 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:20:16,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:20:16,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:20:16,065 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:20:16,065 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:20:16,066 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:20:16,067 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:20:16,068 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:20:16,069 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:20:16,069 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:20:16,070 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:20:16,070 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:20:16,071 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:20:16,071 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:20:16,072 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:20:16,072 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:20:16,073 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:20:16,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:20:16,075 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:20:16,076 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:20:16,076 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:20:16,077 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:20:16,079 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:20:16,079 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:20:16,079 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:20:16,080 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:20:16,080 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:20:16,081 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:20:16,082 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:20:16,082 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:20:16,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:20:16,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:20:16,083 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:20:16,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:20:16,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:20:16,084 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:20:16,084 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:20:16,094 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:20:16,094 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:20:16,095 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:20:16,095 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:20:16,095 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:20:16,095 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:20:16,095 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:20:16,095 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:20:16,096 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:20:16,096 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:20:16,096 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:20:16,096 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:20:16,096 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:20:16,096 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:20:16,097 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:20:16,098 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:20:16,098 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:20:16,099 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:20:16,099 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:20:16,100 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_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 -> f7402de8c18187e6b78675847a190de125c5cd49 [2018-11-18 11:20:16,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:20:16,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:20:16,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:20:16,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:20:16,134 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:20:16,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/../../sv-benchmarks/c/loops/eureka_01_true-unreach-call.i [2018-11-18 11:20:16,171 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/78247664f/33a79a2b18104c38adc49a2204f0346e/FLAG2879c12f5 [2018-11-18 11:20:16,599 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:20:16,600 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/sv-benchmarks/c/loops/eureka_01_true-unreach-call.i [2018-11-18 11:20:16,605 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/78247664f/33a79a2b18104c38adc49a2204f0346e/FLAG2879c12f5 [2018-11-18 11:20:16,617 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/78247664f/33a79a2b18104c38adc49a2204f0346e [2018-11-18 11:20:16,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:20:16,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:20:16,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:20:16,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:20:16,625 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:20:16,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491fa483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16, skipping insertion in model container [2018-11-18 11:20:16,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:20:16,653 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:20:16,797 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:20:16,801 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:20:16,826 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:20:16,838 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:20:16,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16 WrapperNode [2018-11-18 11:20:16,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:20:16,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:20:16,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:20:16,839 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:20:16,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:20:16,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:20:16,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:20:16,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:20:16,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... [2018-11-18 11:20:16,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:20:16,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:20:16,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:20:16,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:20:16,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:20:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:20:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:20:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:20:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:20:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:20:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:20:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:20:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:20:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 11:20:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 11:20:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 11:20:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:20:17,245 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:20:17,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:17 BoogieIcfgContainer [2018-11-18 11:20:17,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:20:17,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:20:17,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:20:17,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:20:17,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:20:16" (1/3) ... [2018-11-18 11:20:17,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f967efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:20:17, skipping insertion in model container [2018-11-18 11:20:17,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:16" (2/3) ... [2018-11-18 11:20:17,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f967efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:20:17, skipping insertion in model container [2018-11-18 11:20:17,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:17" (3/3) ... [2018-11-18 11:20:17,250 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_01_true-unreach-call.i [2018-11-18 11:20:17,257 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:20:17,262 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:20:17,271 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:20:17,292 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:20:17,292 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:20:17,292 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:20:17,293 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:20:17,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:20:17,293 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:20:17,293 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:20:17,293 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:20:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-18 11:20:17,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 11:20:17,308 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:17,309 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:17,311 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:17,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:17,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1090382313, now seen corresponding path program 1 times [2018-11-18 11:20:17,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:20:17,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:20:17,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:17,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:20:17,346 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:20:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:17,429 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 11:20:17,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:20:17,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:20:17,431 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:20:17,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:20:17,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:20:17,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:20:17,444 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-18 11:20:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:17,458 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2018-11-18 11:20:17,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:20:17,459 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 11:20:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:17,463 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:20:17,464 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 11:20:17,466 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 11:20:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 11:20:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 11:20:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 11:20:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-11-18 11:20:17,490 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 18 [2018-11-18 11:20:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:17,491 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-11-18 11:20:17,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:20:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2018-11-18 11:20:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:20:17,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:17,492 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:17,492 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:17,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:17,492 INFO L82 PathProgramCache]: Analyzing trace with hash -448793496, now seen corresponding path program 1 times [2018-11-18 11:20:17,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:20:17,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:20:17,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:17,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:20:17,494 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:20:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:17,579 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 11:20:17,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:20:17,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:20:17,580 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:20:17,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:20:17,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:20:17,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:20:17,582 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 3 states. [2018-11-18 11:20:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:17,627 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2018-11-18 11:20:17,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:20:17,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-18 11:20:17,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:17,628 INFO L225 Difference]: With dead ends: 64 [2018-11-18 11:20:17,628 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 11:20:17,629 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 11:20:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 11:20:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-18 11:20:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 11:20:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-18 11:20:17,633 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 21 [2018-11-18 11:20:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:17,633 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-18 11:20:17,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:20:17,633 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-18 11:20:17,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:20:17,634 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:17,634 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:17,634 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:17,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:17,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1500559425, now seen corresponding path program 1 times [2018-11-18 11:20:17,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:20:17,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:20:17,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:17,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:20:17,636 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:20:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:17,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:17,719 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:20:17,719 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-11-18 11:20:17,721 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [21], [25], [29], [32], [58], [62], [65], [77], [81], [86], [96], [99], [101], [107], [108], [109], [111] [2018-11-18 11:20:17,743 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:20:17,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:20:17,819 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:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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 11:20:17,822 INFO L168 Benchmark]: Toolchain (without parser) took 1201.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -93.6 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:17,824 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:20:17,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.03 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:17,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:17,825 INFO L168 Benchmark]: Boogie Preprocessor took 24.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:20:17,826 INFO L168 Benchmark]: RCFGBuilder took 326.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:17,826 INFO L168 Benchmark]: TraceAbstraction took 575.41 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 11:20:17,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 217.03 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 326.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 575.41 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 11:20:19,260 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:20:19,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:20:19,269 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:20:19,270 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:20:19,270 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:20:19,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:20:19,272 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:20:19,273 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:20:19,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:20:19,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:20:19,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:20:19,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:20:19,276 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:20:19,277 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:20:19,278 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:20:19,278 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:20:19,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:20:19,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:20:19,282 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:20:19,283 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:20:19,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:20:19,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:20:19,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:20:19,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:20:19,287 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:20:19,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:20:19,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:20:19,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:20:19,290 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:20:19,290 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:20:19,290 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:20:19,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:20:19,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:20:19,291 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:20:19,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:20:19,293 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 11:20:19,303 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:20:19,303 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:20:19,304 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:20:19,304 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:20:19,304 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:20:19,304 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:20:19,304 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:20:19,304 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:20:19,304 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:20:19,305 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:20:19,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:20:19,305 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:20:19,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:20:19,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:20:19,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:20:19,307 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:20:19,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:20:19,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:20:19,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:20:19,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:20:19,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:20:19,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:20:19,308 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:20:19,308 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:20:19,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:20:19,308 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 11:20:19,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:20:19,308 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:20:19,308 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:20:19,308 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_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 -> f7402de8c18187e6b78675847a190de125c5cd49 [2018-11-18 11:20:19,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:20:19,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:20:19,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:20:19,350 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:20:19,351 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:20:19,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/../../sv-benchmarks/c/loops/eureka_01_true-unreach-call.i [2018-11-18 11:20:19,391 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/b9bb6d2d6/adbf214bf37f4feba5cba694fe310495/FLAGee3d52284 [2018-11-18 11:20:19,792 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:20:19,793 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/sv-benchmarks/c/loops/eureka_01_true-unreach-call.i [2018-11-18 11:20:19,797 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/b9bb6d2d6/adbf214bf37f4feba5cba694fe310495/FLAGee3d52284 [2018-11-18 11:20:19,804 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/data/b9bb6d2d6/adbf214bf37f4feba5cba694fe310495 [2018-11-18 11:20:19,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:20:19,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:20:19,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:20:19,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:20:19,811 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:20:19,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:20:19" (1/1) ... [2018-11-18 11:20:19,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3525bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:19, skipping insertion in model container [2018-11-18 11:20:19,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:20:19" (1/1) ... [2018-11-18 11:20:19,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:20:19,839 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:20:19,981 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:20:19,985 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:20:20,018 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:20:20,031 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:20:20,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20 WrapperNode [2018-11-18 11:20:20,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:20:20,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:20:20,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:20:20,032 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:20:20,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:20:20,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:20:20,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:20:20,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:20:20,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... [2018-11-18 11:20:20,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:20:20,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:20:20,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:20:20,125 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:20:20,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:20:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:20:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:20:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 11:20:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 11:20:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:20:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:20:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:20:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:20:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 11:20:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 11:20:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:20:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 11:20:22,447 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:20:22,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:22 BoogieIcfgContainer [2018-11-18 11:20:22,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:20:22,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:20:22,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:20:22,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:20:22,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:20:19" (1/3) ... [2018-11-18 11:20:22,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355eaf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:20:22, skipping insertion in model container [2018-11-18 11:20:22,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:20" (2/3) ... [2018-11-18 11:20:22,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355eaf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:20:22, skipping insertion in model container [2018-11-18 11:20:22,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:22" (3/3) ... [2018-11-18 11:20:22,453 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_01_true-unreach-call.i [2018-11-18 11:20:22,459 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:20:22,464 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:20:22,475 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:20:22,497 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:20:22,498 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:20:22,498 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:20:22,498 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:20:22,498 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:20:22,498 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:20:22,498 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:20:22,498 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:20:22,498 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:20:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-18 11:20:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 11:20:22,515 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:22,516 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:22,517 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:22,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:22,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1090382313, now seen corresponding path program 1 times [2018-11-18 11:20:22,524 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:22,525 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:22,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:22,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:22,606 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 11:20:22,607 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:20:22,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:20:22,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:20:22,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:20:22,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:20:22,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:20:22,623 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-18 11:20:22,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:22,637 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2018-11-18 11:20:22,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:20:22,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 11:20:22,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:22,644 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:20:22,644 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 11:20:22,646 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 11:20:22,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 11:20:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 11:20:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 11:20:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-11-18 11:20:22,671 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 18 [2018-11-18 11:20:22,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:22,671 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-11-18 11:20:22,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:20:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2018-11-18 11:20:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:20:22,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:22,672 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:22,673 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:22,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:22,673 INFO L82 PathProgramCache]: Analyzing trace with hash -448793496, now seen corresponding path program 1 times [2018-11-18 11:20:22,674 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:22,674 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:22,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:22,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:22,761 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 11:20:22,762 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:20:22,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:20:22,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:20:22,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:20:22,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:20:22,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:20:22,766 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 3 states. [2018-11-18 11:20:22,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:22,830 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2018-11-18 11:20:22,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:20:22,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-18 11:20:22,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:22,832 INFO L225 Difference]: With dead ends: 64 [2018-11-18 11:20:22,832 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 11:20:22,833 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 11:20:22,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 11:20:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-18 11:20:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 11:20:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-18 11:20:22,838 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 21 [2018-11-18 11:20:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:22,838 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-18 11:20:22,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:20:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-18 11:20:22,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:20:22,839 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:22,839 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:22,840 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:22,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:22,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1500559425, now seen corresponding path program 1 times [2018-11-18 11:20:22,840 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:22,841 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:22,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:22,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:22,936 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:22,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:22,976 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:22,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:23,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:20:23,062 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:20:23,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:20:23,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2018-11-18 11:20:23,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:20:23,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:20:23,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:20:23,079 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 8 states. [2018-11-18 11:20:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:25,345 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2018-11-18 11:20:25,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:20:25,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-18 11:20:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:25,348 INFO L225 Difference]: With dead ends: 91 [2018-11-18 11:20:25,348 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 11:20:25,349 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:20:25,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 11:20:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 51. [2018-11-18 11:20:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-18 11:20:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2018-11-18 11:20:25,359 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 25 [2018-11-18 11:20:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:25,360 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2018-11-18 11:20:25,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:20:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2018-11-18 11:20:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 11:20:25,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:25,361 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:25,361 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:25,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:25,361 INFO L82 PathProgramCache]: Analyzing trace with hash 780741693, now seen corresponding path program 1 times [2018-11-18 11:20:25,362 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:25,362 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:25,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:25,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:20:25,441 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:20:25,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:25,477 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:25,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:25,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:20:25,535 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:20:25,586 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:20:25,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4] total 6 [2018-11-18 11:20:25,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:20:25,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:20:25,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:20:25,587 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 6 states. [2018-11-18 11:20:27,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:27,682 INFO L93 Difference]: Finished difference Result 98 states and 117 transitions. [2018-11-18 11:20:27,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:20:27,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2018-11-18 11:20:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:27,684 INFO L225 Difference]: With dead ends: 98 [2018-11-18 11:20:27,684 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 11:20:27,684 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:20:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 11:20:27,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2018-11-18 11:20:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 11:20:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2018-11-18 11:20:27,691 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 41 [2018-11-18 11:20:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:27,691 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2018-11-18 11:20:27,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:20:27,691 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2018-11-18 11:20:27,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 11:20:27,693 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:27,693 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:27,693 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:27,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:27,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1564771773, now seen corresponding path program 1 times [2018-11-18 11:20:27,694 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:27,694 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:27,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:27,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:20:27,805 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:20:27,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:27,906 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:27,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:27,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 11:20:27,970 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:20:27,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:20:27,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 13 [2018-11-18 11:20:27,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 11:20:27,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 11:20:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:20:27,987 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand 13 states. [2018-11-18 11:20:30,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:30,360 INFO L93 Difference]: Finished difference Result 171 states and 208 transitions. [2018-11-18 11:20:30,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:20:30,363 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-11-18 11:20:30,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:30,365 INFO L225 Difference]: With dead ends: 171 [2018-11-18 11:20:30,365 INFO L226 Difference]: Without dead ends: 144 [2018-11-18 11:20:30,365 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:20:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-18 11:20:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 89. [2018-11-18 11:20:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-18 11:20:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 104 transitions. [2018-11-18 11:20:30,377 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 104 transitions. Word has length 41 [2018-11-18 11:20:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:30,378 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 104 transitions. [2018-11-18 11:20:30,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 11:20:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 104 transitions. [2018-11-18 11:20:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 11:20:30,379 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:30,379 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:30,379 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:30,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:30,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1211816956, now seen corresponding path program 1 times [2018-11-18 11:20:30,381 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:30,381 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/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 11:20:30,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:30,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:30,477 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-11-18 11:20:30,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-11-18 11:20:30,550 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:30,551 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:20:30,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:30,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-18 11:20:30,669 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:20:30,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:20:30,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 14 [2018-11-18 11:20:30,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 11:20:30,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 11:20:30,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:20:30,687 INFO L87 Difference]: Start difference. First operand 89 states and 104 transitions. Second operand 14 states. [2018-11-18 11:20:41,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:41,156 INFO L93 Difference]: Finished difference Result 200 states and 251 transitions. [2018-11-18 11:20:41,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 11:20:41,156 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2018-11-18 11:20:41,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:41,157 INFO L225 Difference]: With dead ends: 200 [2018-11-18 11:20:41,157 INFO L226 Difference]: Without dead ends: 135 [2018-11-18 11:20:41,158 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:20:41,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-11-18 11:20:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 116. [2018-11-18 11:20:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-18 11:20:41,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2018-11-18 11:20:41,166 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 70 [2018-11-18 11:20:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:41,166 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2018-11-18 11:20:41,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 11:20:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2018-11-18 11:20:41,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-18 11:20:41,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:41,168 INFO L375 BasicCegarLoop]: trace histogram [10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:41,168 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:41,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:41,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1306597011, now seen corresponding path program 1 times [2018-11-18 11:20:41,169 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:41,169 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/cvc4nyu Starting monitored process 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:20:41,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:41,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-11-18 11:20:41,307 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-11-18 11:20:41,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:41,336 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:20:41,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:20:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:41,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-11-18 11:20:41,420 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:41,429 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-11-18 11:20:41,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:20:41,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2018-11-18 11:20:41,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:20:41,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:20:41,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:20:41,448 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand 8 states. [2018-11-18 11:20:45,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:20:45,572 INFO L93 Difference]: Finished difference Result 234 states and 293 transitions. [2018-11-18 11:20:45,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:20:45,572 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2018-11-18 11:20:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:20:45,573 INFO L225 Difference]: With dead ends: 234 [2018-11-18 11:20:45,573 INFO L226 Difference]: Without dead ends: 176 [2018-11-18 11:20:45,573 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:20:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-18 11:20:45,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-11-18 11:20:45,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-18 11:20:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 210 transitions. [2018-11-18 11:20:45,592 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 210 transitions. Word has length 90 [2018-11-18 11:20:45,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:20:45,592 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 210 transitions. [2018-11-18 11:20:45,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:20:45,592 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 210 transitions. [2018-11-18 11:20:45,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-18 11:20:45,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:20:45,594 INFO L375 BasicCegarLoop]: trace histogram [25, 20, 20, 20, 6, 6, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:20:45,594 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:20:45,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:45,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1482100126, now seen corresponding path program 2 times [2018-11-18 11:20:45,595 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:20:45,595 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/cvc4nyu Starting monitored process 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:20:45,608 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 11:20:45,863 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:20:45,863 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:20:45,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 338 proven. 32 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2018-11-18 11:20:46,012 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 338 proven. 32 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2018-11-18 11:20:46,151 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:20:46,151 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:20:46,161 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:20:49,868 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:20:49,868 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:20:49,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:20:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1070 trivial. 0 not checked. [2018-11-18 11:20:49,929 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:20:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1070 trivial. 0 not checked. [2018-11-18 11:20:50,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:20:50,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 5, 5] total 19 [2018-11-18 11:20:50,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 11:20:50,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 11:20:50,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2018-11-18 11:20:50,049 INFO L87 Difference]: Start difference. First operand 176 states and 210 transitions. Second operand 19 states. [2018-11-18 11:21:00,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:00,565 INFO L93 Difference]: Finished difference Result 434 states and 557 transitions. [2018-11-18 11:21:00,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-11-18 11:21:00,566 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 150 [2018-11-18 11:21:00,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:00,567 INFO L225 Difference]: With dead ends: 434 [2018-11-18 11:21:00,567 INFO L226 Difference]: Without dead ends: 328 [2018-11-18 11:21:00,568 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1210 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1246, Invalid=3044, Unknown=0, NotChecked=0, Total=4290 [2018-11-18 11:21:00,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-11-18 11:21:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 308. [2018-11-18 11:21:00,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-11-18 11:21:00,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 372 transitions. [2018-11-18 11:21:00,594 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 372 transitions. Word has length 150 [2018-11-18 11:21:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:00,594 INFO L480 AbstractCegarLoop]: Abstraction has 308 states and 372 transitions. [2018-11-18 11:21:00,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 11:21:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 372 transitions. [2018-11-18 11:21:00,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-11-18 11:21:00,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:00,599 INFO L375 BasicCegarLoop]: trace histogram [55, 50, 50, 50, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:00,599 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:00,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:00,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1304925471, now seen corresponding path program 3 times [2018-11-18 11:21:00,600 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:21:00,600 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/cvc4nyu Starting monitored process 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:21:00,619 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 11:21:01,463 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-18 11:21:01,464 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:21:01,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:21:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5542 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 5510 trivial. 0 not checked. [2018-11-18 11:21:01,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:21:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 5542 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 5510 trivial. 0 not checked. [2018-11-18 11:21:01,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:21:01,745 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:21:01,751 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 11:21:11,885 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-18 11:21:11,885 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:21:11,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:21:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5542 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 5510 trivial. 0 not checked. [2018-11-18 11:21:11,946 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:21:12,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5542 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 5510 trivial. 0 not checked. [2018-11-18 11:21:12,233 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 11:21:12,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 9] total 19 [2018-11-18 11:21:12,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 11:21:12,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 11:21:12,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-11-18 11:21:12,234 INFO L87 Difference]: Start difference. First operand 308 states and 372 transitions. Second operand 19 states. [2018-11-18 11:21:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:21,205 INFO L93 Difference]: Finished difference Result 689 states and 844 transitions. [2018-11-18 11:21:21,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 11:21:21,206 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 282 [2018-11-18 11:21:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:21,208 INFO L225 Difference]: With dead ends: 689 [2018-11-18 11:21:21,208 INFO L226 Difference]: Without dead ends: 677 [2018-11-18 11:21:21,209 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1108 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:21:21,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2018-11-18 11:21:21,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 332. [2018-11-18 11:21:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-11-18 11:21:21,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 396 transitions. [2018-11-18 11:21:21,231 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 396 transitions. Word has length 282 [2018-11-18 11:21:21,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:21,231 INFO L480 AbstractCegarLoop]: Abstraction has 332 states and 396 transitions. [2018-11-18 11:21:21,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 11:21:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 396 transitions. [2018-11-18 11:21:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-11-18 11:21:21,235 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:21,235 INFO L375 BasicCegarLoop]: trace histogram [55, 50, 50, 50, 11, 10, 10, 10, 6, 6, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:21,235 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:21,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:21,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1326707339, now seen corresponding path program 4 times [2018-11-18 11:21:21,237 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:21:21,237 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05700ae2-f31c-48a8-a0e1-bf0f70c88b39/bin-2019/utaipan/cvc4nyu Starting monitored process 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:21:21,250 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 11:21:21,493 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 11:21:21,493 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.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.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.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.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.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.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 11:21:21,496 INFO L168 Benchmark]: Toolchain (without parser) took 61689.16 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 257.4 MB). Free memory was 949.2 MB in the beginning and 1.2 GB in the end (delta: -257.4 MB). Peak memory consumption was 20.8 kB. Max. memory is 11.5 GB. [2018-11-18 11:21:21,497 INFO L168 Benchmark]: CDTParser took 0.15 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 11:21:21,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.17 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:21,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.37 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:21:21,498 INFO L168 Benchmark]: Boogie Preprocessor took 72.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:21,498 INFO L168 Benchmark]: RCFGBuilder took 2322.85 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:21,499 INFO L168 Benchmark]: TraceAbstraction took 59047.38 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 124.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -121.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:21,501 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 223.17 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.37 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2322.85 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 59047.38 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 124.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -121.0 MB). Peak memory consumption was 3.3 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...