./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b909735efeb9bc00b7df4035956af92a753b9076 .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b909735efeb9bc00b7df4035956af92a753b9076 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:18:54,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:18:54,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:18:54,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:18:54,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:18:54,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:18:54,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:18:54,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:18:54,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:18:54,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:18:54,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:18:54,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:18:54,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:18:54,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:18:54,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:18:54,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:18:54,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:18:54,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:18:54,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:18:54,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:18:54,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:18:54,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:18:54,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:18:54,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:18:54,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:18:54,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:18:54,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:18:54,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:18:54,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:18:54,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:18:54,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:18:54,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:18:54,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:18:54,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:18:54,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:18:54,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:18:54,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:18:54,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:18:54,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:18:54,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:18:54,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:18:54,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:18:54,964 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:18:54,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:18:54,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:18:54,967 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:18:54,967 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:18:54,968 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:18:54,968 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:18:54,969 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:18:54,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:18:54,969 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:18:54,971 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:18:54,971 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:18:54,972 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:18:54,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:18:54,973 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:18:54,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:18:54,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:18:54,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:18:54,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:18:54,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:18:54,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:18:54,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:18:54,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:18:54,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:18:54,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:18:54,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:18:54,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:18:54,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:18:54,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:18:54,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:18:54,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:18:54,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:18:54,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:18:54,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:18:54,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:18:54,982 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:18:54,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:18:54,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:18:54,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:18:54,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:18:54,984 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909735efeb9bc00b7df4035956af92a753b9076 [2020-11-30 03:18:55,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:18:55,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:18:55,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:18:55,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:18:55,411 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:18:55,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/../../sv-benchmarks/c/verifythis/elimination_max.c [2020-11-30 03:18:55,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/36abd14f6/ac8eee256a804c8ebe3ec45b7eb45cd0/FLAG90e8f44c1 [2020-11-30 03:18:56,184 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:18:56,184 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/sv-benchmarks/c/verifythis/elimination_max.c [2020-11-30 03:18:56,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/36abd14f6/ac8eee256a804c8ebe3ec45b7eb45cd0/FLAG90e8f44c1 [2020-11-30 03:18:56,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/36abd14f6/ac8eee256a804c8ebe3ec45b7eb45cd0 [2020-11-30 03:18:56,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:18:56,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:18:56,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:18:56,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:18:56,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:18:56,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:18:56" (1/1) ... [2020-11-30 03:18:56,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7272c3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:56, skipping insertion in model container [2020-11-30 03:18:56,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:18:56" (1/1) ... [2020-11-30 03:18:56,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:18:56,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:18:56,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:18:56,928 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:18:56,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:18:57,003 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:18:57,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57 WrapperNode [2020-11-30 03:18:57,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:18:57,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:18:57,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:18:57,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:18:57,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:18:57,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:18:57,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:18:57,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:18:57,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:18:57,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:18:57,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:18:57,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:18:57,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/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 [2020-11-30 03:18:57,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:18:57,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:18:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 03:18:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:18:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:18:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:18:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:18:57,988 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:18:57,988 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 03:18:57,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:18:57 BoogieIcfgContainer [2020-11-30 03:18:57,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:18:57,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:18:57,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:18:57,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:18:57,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:18:56" (1/3) ... [2020-11-30 03:18:57,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3dd018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:18:57, skipping insertion in model container [2020-11-30 03:18:57,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57" (2/3) ... [2020-11-30 03:18:58,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3dd018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:18:57, skipping insertion in model container [2020-11-30 03:18:58,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:18:57" (3/3) ... [2020-11-30 03:18:58,002 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2020-11-30 03:18:58,016 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:18:58,022 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 03:18:58,038 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 03:18:58,067 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:18:58,067 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:18:58,068 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:18:58,068 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:18:58,068 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:18:58,068 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:18:58,068 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:18:58,068 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:18:58,084 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-30 03:18:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:18:58,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:58,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:18:58,091 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:58,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:58,098 INFO L82 PathProgramCache]: Analyzing trace with hash 3781855, now seen corresponding path program 1 times [2020-11-30 03:18:58,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:58,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155817908] [2020-11-30 03:18:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:58,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:58,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155817908] [2020-11-30 03:18:58,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:58,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:18:58,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983668693] [2020-11-30 03:18:58,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:18:58,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:58,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:18:58,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:18:58,400 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2020-11-30 03:18:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:58,478 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2020-11-30 03:18:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:18:58,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 03:18:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:58,498 INFO L225 Difference]: With dead ends: 17 [2020-11-30 03:18:58,499 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:18:58,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:18:58,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:18:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:18:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:18:58,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-30 03:18:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:58,615 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:18:58,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:18:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:18:58,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:18:58,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:18:58,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:18:58,651 INFO L270 CegarLoopResult]: At program point L35-2(lines 25 37) the Hoare annotation is: (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) ((as const (Array Int Int)) 0)) [2020-11-30 03:18:58,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 03:18:58,652 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 03:18:58,652 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 03:18:58,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:18:58,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 03:18:58,653 INFO L270 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) ((as const (Array Int Int)) 0))) [2020-11-30 03:18:58,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:18:58,653 INFO L274 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-11-30 03:18:58,653 INFO L274 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-11-30 03:18:58,653 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-11-30 03:18:58,653 INFO L274 CegarLoopResult]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2020-11-30 03:18:58,662 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 03:18:58,667 INFO L168 Benchmark]: Toolchain (without parser) took 2112.75 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 53.5 MB in the beginning and 85.5 MB in the end (delta: -32.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:18:58,668 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 86.0 MB. Free memory was 59.8 MB in the beginning and 59.7 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:18:58,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.50 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 53.3 MB in the beginning and 88.3 MB in the end (delta: -35.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:58,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.44 ms. Allocated memory is still 111.1 MB. Free memory was 88.3 MB in the beginning and 86.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:58,672 INFO L168 Benchmark]: Boogie Preprocessor took 61.16 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:58,673 INFO L168 Benchmark]: RCFGBuilder took 848.89 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 56.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:58,674 INFO L168 Benchmark]: TraceAbstraction took 670.90 ms. Allocated memory is still 111.1 MB. Free memory was 56.5 MB in the beginning and 85.5 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:18:58,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 86.0 MB. Free memory was 59.8 MB in the beginning and 59.7 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.50 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 53.3 MB in the beginning and 88.3 MB in the end (delta: -35.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.44 ms. Allocated memory is still 111.1 MB. Free memory was 88.3 MB in the beginning and 86.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.16 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 848.89 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 56.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 670.90 ms. Allocated memory is still 111.1 MB. Free memory was 56.5 MB in the beginning and 85.5 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:19:01,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:19:01,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:19:01,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:19:01,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:19:01,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:19:01,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:19:01,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:19:01,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:19:01,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:19:01,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:19:01,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:19:01,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:19:01,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:19:01,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:19:01,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:19:01,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:19:01,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:19:01,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:19:02,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:19:02,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:19:02,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:19:02,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:19:02,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:19:02,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:19:02,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:19:02,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:19:02,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:19:02,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:19:02,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:19:02,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:19:02,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:19:02,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:19:02,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:19:02,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:19:02,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:19:02,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:19:02,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:19:02,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:19:02,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:19:02,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:19:02,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:19:02,105 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:19:02,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:19:02,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:19:02,109 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:19:02,109 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:19:02,109 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:19:02,109 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:19:02,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:19:02,110 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:19:02,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:19:02,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:19:02,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:19:02,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:19:02,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:19:02,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:19:02,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:19:02,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:19:02,113 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:19:02,113 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:19:02,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:19:02,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:19:02,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:19:02,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:19:02,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:19:02,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:19:02,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:19:02,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:19:02,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:19:02,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:19:02,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:19:02,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:19:02,116 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:19:02,117 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:19:02,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:19:02,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:19:02,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:19:02,118 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909735efeb9bc00b7df4035956af92a753b9076 [2020-11-30 03:19:02,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:19:02,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:19:02,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:19:02,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:19:02,737 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:19:02,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/../../sv-benchmarks/c/verifythis/elimination_max.c [2020-11-30 03:19:02,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/c3d6c9893/84fdeb2632834c4c9767774892cc9a04/FLAGcc66c6262 [2020-11-30 03:19:03,574 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:19:03,576 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/sv-benchmarks/c/verifythis/elimination_max.c [2020-11-30 03:19:03,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/c3d6c9893/84fdeb2632834c4c9767774892cc9a04/FLAGcc66c6262 [2020-11-30 03:19:03,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/data/c3d6c9893/84fdeb2632834c4c9767774892cc9a04 [2020-11-30 03:19:03,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:19:03,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:19:03,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:19:03,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:19:03,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:19:03,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:19:03" (1/1) ... [2020-11-30 03:19:03,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246de8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:03, skipping insertion in model container [2020-11-30 03:19:03,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:19:03" (1/1) ... [2020-11-30 03:19:03,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:19:03,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:19:04,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:19:04,226 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:19:04,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:19:04,277 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:19:04,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04 WrapperNode [2020-11-30 03:19:04,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:19:04,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:19:04,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:19:04,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:19:04,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:19:04,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:19:04,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:19:04,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:19:04,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... [2020-11-30 03:19:04,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:19:04,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:19:04,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:19:04,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:19:04,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/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 [2020-11-30 03:19:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:19:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:19:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 03:19:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 03:19:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:19:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:19:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:19:05,340 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:19:05,341 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 03:19:05,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:19:05 BoogieIcfgContainer [2020-11-30 03:19:05,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:19:05,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:19:05,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:19:05,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:19:05,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:19:03" (1/3) ... [2020-11-30 03:19:05,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e5fca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:19:05, skipping insertion in model container [2020-11-30 03:19:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:19:04" (2/3) ... [2020-11-30 03:19:05,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e5fca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:19:05, skipping insertion in model container [2020-11-30 03:19:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:19:05" (3/3) ... [2020-11-30 03:19:05,357 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2020-11-30 03:19:05,371 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:19:05,376 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 03:19:05,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 03:19:05,440 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:19:05,440 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:19:05,441 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:19:05,441 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:19:05,441 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:19:05,441 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:19:05,442 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:19:05,442 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:19:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-30 03:19:05,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:19:05,469 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:05,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:05,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:19:05,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:05,478 INFO L82 PathProgramCache]: Analyzing trace with hash -489201995, now seen corresponding path program 1 times [2020-11-30 03:19:05,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:19:05,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069597104] [2020-11-30 03:19:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:19:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:05,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 03:19:05,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:19:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:05,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:19:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:05,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069597104] [2020-11-30 03:19:05,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:05,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 03:19:05,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433586220] [2020-11-30 03:19:05,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:19:05,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:19:05,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:19:05,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:19:05,780 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-30 03:19:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:05,816 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2020-11-30 03:19:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:19:05,819 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 03:19:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:05,832 INFO L225 Difference]: With dead ends: 47 [2020-11-30 03:19:05,832 INFO L226 Difference]: Without dead ends: 20 [2020-11-30 03:19:05,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:19:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-30 03:19:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-30 03:19:05,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 03:19:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-11-30 03:19:05,884 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2020-11-30 03:19:05,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:05,885 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-11-30 03:19:05,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:19:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-11-30 03:19:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:19:05,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:05,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:06,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:19:06,101 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:19:06,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:06,102 INFO L82 PathProgramCache]: Analyzing trace with hash 190915957, now seen corresponding path program 1 times [2020-11-30 03:19:06,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:19:06,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958248070] [2020-11-30 03:19:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:19:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:06,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 03:19:06,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:19:06,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:06,549 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:19:06,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:19:06,848 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2020-11-30 03:19:06,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:06,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:19:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:07,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:19:07,134 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 03:19:07,135 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2020-11-30 03:19:07,137 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:07,146 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 03:19:07,152 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 03:19:07,152 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 03:19:07,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-11-30 03:19:07,290 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:07,292 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:07,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958248070] [2020-11-30 03:19:07,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:07,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2020-11-30 03:19:07,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892568877] [2020-11-30 03:19:07,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 03:19:07,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:19:07,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 03:19:07,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-11-30 03:19:07,521 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 15 states. [2020-11-30 03:19:08,060 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2020-11-30 03:19:08,406 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-11-30 03:19:08,794 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2020-11-30 03:19:09,017 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-30 03:19:09,314 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2020-11-30 03:19:09,744 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2020-11-30 03:19:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:09,933 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-11-30 03:19:09,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 03:19:09,934 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2020-11-30 03:19:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:09,936 INFO L225 Difference]: With dead ends: 42 [2020-11-30 03:19:09,937 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 03:19:09,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2020-11-30 03:19:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 03:19:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2020-11-30 03:19:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 03:19:09,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-11-30 03:19:09,951 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 11 [2020-11-30 03:19:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:09,951 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-11-30 03:19:09,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 03:19:09,951 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-11-30 03:19:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:19:09,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:09,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:10,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:19:10,168 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:19:10,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:10,169 INFO L82 PathProgramCache]: Analyzing trace with hash -138608584, now seen corresponding path program 1 times [2020-11-30 03:19:10,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:19:10,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887386418] [2020-11-30 03:19:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:19:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:10,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-30 03:19:10,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:19:10,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:10,843 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 03:19:10,845 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 03:19:11,102 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-11-30 03:19:11,108 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 03:19:11,259 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:11,264 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:11,267 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:11,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:19:11,763 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:11,764 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,691 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-11-30 03:19:12,692 INFO L350 Elim1Store]: treesize reduction 17, result has 83.0 percent of original size [2020-11-30 03:19:12,692 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 90 [2020-11-30 03:19:12,694 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,696 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,697 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,701 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,702 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,703 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,705 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,707 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,708 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,709 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,711 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,712 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,714 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,749 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,751 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,752 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,754 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,758 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,760 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,762 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,764 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,765 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,766 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,770 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,772 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,772 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,774 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,775 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,776 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,779 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,781 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,782 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,784 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,785 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,786 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,788 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,789 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,790 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,792 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,802 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,804 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,805 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,807 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,808 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,809 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,811 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,818 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,819 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,822 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,823 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,824 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,830 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,832 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,834 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,837 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,839 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,841 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,843 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,845 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,846 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,857 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,860 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,862 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,863 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,876 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,877 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,879 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,880 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,881 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,883 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,885 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,887 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,888 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,889 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,890 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,892 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,898 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,900 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,902 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,903 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,904 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,905 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,907 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,908 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,910 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,912 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,914 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,919 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,920 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,922 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,922 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,925 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,926 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,927 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,931 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,932 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,933 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,936 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,938 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,939 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,940 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,942 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,943 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,944 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,945 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,947 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,948 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,967 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,969 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,970 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,972 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,974 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,975 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,988 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,990 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:12,991 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,992 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:12,994 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:12,999 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,000 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,001 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,007 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,011 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,012 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,015 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,016 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,017 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,018 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,020 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,022 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,037 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,038 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,039 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,040 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,050 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,051 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,052 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,053 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,054 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,058 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,060 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,061 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,064 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,067 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,068 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,069 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,071 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,073 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,073 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,076 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,077 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,078 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,080 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,081 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,082 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,083 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,084 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,085 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,086 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,089 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,090 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,092 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,094 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,096 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,097 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,100 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,101 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,102 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,103 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,108 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,109 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,115 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,116 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,117 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,118 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,119 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,120 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,121 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,122 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,125 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,133 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,134 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,138 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,140 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,141 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,141 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,143 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 03:19:13,144 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 03:19:13,144 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:19:13,146 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-30 03:19:14,152 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-11-30 03:19:14,153 INFO L625 ElimStorePlain]: treesize reduction 55, result has 48.6 percent of original size [2020-11-30 03:19:14,169 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 03:19:14,170 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:41 [2020-11-30 03:19:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:14,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887386418] [2020-11-30 03:19:14,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1975645073] [2020-11-30 03:19:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa399920-82cc-42e4-995d-f0e74f82f410/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:19:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:14,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 03:19:14,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:19:14,619 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2020-11-30 03:19:14,619 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 03:19:14,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 03:19:14,624 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 03:19:14,625 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2020-11-30 03:19:14,834 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:19:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 03:19:14,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:19:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 03:19:43,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2020-11-30 03:19:43,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [12, 9] total 23 [2020-11-30 03:19:43,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124222580] [2020-11-30 03:19:43,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 03:19:43,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:19:43,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 03:19:43,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=422, Unknown=14, NotChecked=0, Total=506 [2020-11-30 03:19:43,369 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 8 states. [2020-11-30 03:19:45,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:45,609 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-11-30 03:19:45,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:19:45,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-11-30 03:19:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:45,610 INFO L225 Difference]: With dead ends: 28 [2020-11-30 03:19:45,610 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:19:45,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=95, Invalid=490, Unknown=15, NotChecked=0, Total=600 [2020-11-30 03:19:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:19:45,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:19:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:19:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:19:45,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-30 03:19:45,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:45,613 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:19:45,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 03:19:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:19:45,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:19:46,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:19:46,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:19:46,284 INFO L270 CegarLoopResult]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc9.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:19:46,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L274 CegarLoopResult]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L270 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc9.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2020-11-30 03:19:46,286 INFO L274 CegarLoopResult]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L274 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L274 CegarLoopResult]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2020-11-30 03:19:46,286 INFO L277 CegarLoopResult]: At program point L50(lines 16 51) the Hoare annotation is: true [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2020-11-30 03:19:46,287 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-30 03:19:46,295 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 03:19:46,304 INFO L168 Benchmark]: Toolchain (without parser) took 42399.27 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 30.1 MB in the beginning and 26.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:46,311 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 52.4 MB. Free memory was 35.4 MB in the beginning and 35.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:19:46,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.53 ms. Allocated memory is still 52.4 MB. Free memory was 29.9 MB in the beginning and 33.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:46,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.72 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 33.2 MB in the beginning and 53.1 MB in the end (delta: -19.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:46,314 INFO L168 Benchmark]: Boogie Preprocessor took 38.74 ms. Allocated memory is still 69.2 MB. Free memory was 53.1 MB in the beginning and 51.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:19:46,314 INFO L168 Benchmark]: RCFGBuilder took 908.74 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 51.2 MB in the end (delta: 453.9 kB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:46,318 INFO L168 Benchmark]: TraceAbstraction took 40952.78 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 50.9 MB in the beginning and 26.4 MB in the end (delta: 24.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:46,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 52.4 MB. Free memory was 35.4 MB in the beginning and 35.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.53 ms. Allocated memory is still 52.4 MB. Free memory was 29.9 MB in the beginning and 33.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.72 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 33.2 MB in the beginning and 53.1 MB in the end (delta: -19.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.74 ms. Allocated memory is still 69.2 MB. Free memory was 53.1 MB in the beginning and 51.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 908.74 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 51.2 MB in the end (delta: 453.9 kB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40952.78 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 50.9 MB in the beginning and 26.4 MB in the end (delta: 24.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...