./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/matrix-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/matrix-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee4e756165c58ac9fb858974dbb081c5816c4c28 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:25,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:25,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:25,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:25,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:25,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:25,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:25,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:25,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:25,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:25,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:25,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:25,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:25,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:25,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:25,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:25,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:25,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:25,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:25,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:25,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:25,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:25,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:25,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:25,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:25,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:25,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:25,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:25,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:25,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:25,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:25,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:25,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:25,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:25,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:25,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:25,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:25,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:25,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:25,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:25,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:25,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:25,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:25,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:25,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:25,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:25,818 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:25,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:25,818 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:25,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:25,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:25,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:25,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:25,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:25,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:25,820 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:25,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:25,820 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:25,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:25,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:25,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:25,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:25,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:25,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:25,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:25,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:25,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:25,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:25,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:25,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:25,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee4e756165c58ac9fb858974dbb081c5816c4c28 [2019-10-22 08:58:25,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:25,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:25,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:25,858 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:25,859 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:25,859 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/../../sv-benchmarks/c/loops/matrix-1.c [2019-10-22 08:58:25,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/data/b9e8ed97b/ad34248d895a4a4eb83008ca20a15606/FLAG744f1fc0b [2019-10-22 08:58:26,270 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:26,270 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/sv-benchmarks/c/loops/matrix-1.c [2019-10-22 08:58:26,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/data/b9e8ed97b/ad34248d895a4a4eb83008ca20a15606/FLAG744f1fc0b [2019-10-22 08:58:26,286 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/data/b9e8ed97b/ad34248d895a4a4eb83008ca20a15606 [2019-10-22 08:58:26,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:26,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:26,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:26,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:26,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:26,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ade72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26, skipping insertion in model container [2019-10-22 08:58:26,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,308 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:26,322 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:26,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:26,460 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:26,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:26,555 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:26,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26 WrapperNode [2019-10-22 08:58:26,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:26,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:26,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:26,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:26,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:26,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:26,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:26,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:26,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... [2019-10-22 08:58:26,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:26,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:26,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:26,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:26,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:26,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:26,946 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:26,946 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:58:26,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:26 BoogieIcfgContainer [2019-10-22 08:58:26,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:26,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:26,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:26,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:26,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:26" (1/3) ... [2019-10-22 08:58:26,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271ec20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:26, skipping insertion in model container [2019-10-22 08:58:26,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:26" (2/3) ... [2019-10-22 08:58:26,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271ec20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:26, skipping insertion in model container [2019-10-22 08:58:26,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:26" (3/3) ... [2019-10-22 08:58:26,954 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2019-10-22 08:58:26,962 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:26,969 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:26,978 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:26,998 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:26,998 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:26,998 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:26,998 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:26,999 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:26,999 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:26,999 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:26,999 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-22 08:58:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:58:27,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,017 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,019 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:27,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,024 INFO L82 PathProgramCache]: Analyzing trace with hash 889621918, now seen corresponding path program 1 times [2019-10-22 08:58:27,031 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456748488] [2019-10-22 08:58:27,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,100 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:27,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804164372] [2019-10-22 08:58:27,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:58:27,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:27,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456748488] [2019-10-22 08:58:27,199 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:27,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804164372] [2019-10-22 08:58:27,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:27,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:27,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852482327] [2019-10-22 08:58:27,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:27,204 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:27,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:27,219 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-10-22 08:58:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:27,295 INFO L93 Difference]: Finished difference Result 33 states and 48 transitions. [2019-10-22 08:58:27,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:27,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 08:58:27,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:27,308 INFO L225 Difference]: With dead ends: 33 [2019-10-22 08:58:27,308 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 08:58:27,311 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 08:58:27,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2019-10-22 08:58:27,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 08:58:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-10-22 08:58:27,341 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2019-10-22 08:58:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:27,341 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-10-22 08:58:27,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-10-22 08:58:27,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:27,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,342 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,544 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:27,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,544 INFO L82 PathProgramCache]: Analyzing trace with hash -235638193, now seen corresponding path program 1 times [2019-10-22 08:58:27,545 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,545 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409340500] [2019-10-22 08:58:27,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,548 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:27,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592606654] [2019-10-22 08:58:27,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:58:27,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:27,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409340500] [2019-10-22 08:58:27,619 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:27,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592606654] [2019-10-22 08:58:27,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:27,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:27,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210452619] [2019-10-22 08:58:27,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:27,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:27,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:27,622 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-10-22 08:58:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:27,680 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-10-22 08:58:27,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:27,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 08:58:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:27,681 INFO L225 Difference]: With dead ends: 28 [2019-10-22 08:58:27,681 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 08:58:27,682 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:27,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 08:58:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2019-10-22 08:58:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 08:58:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-10-22 08:58:27,685 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2019-10-22 08:58:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:27,685 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-10-22 08:58:27,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-10-22 08:58:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:58:27,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,686 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,887 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:27,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,888 INFO L82 PathProgramCache]: Analyzing trace with hash -589728809, now seen corresponding path program 1 times [2019-10-22 08:58:27,888 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384842449] [2019-10-22 08:58:27,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,895 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:27,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988515805] [2019-10-22 08:58:27,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-22 08:58:27,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:28,048 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-22 08:58:28,049 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:28,267 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 27 [2019-10-22 08:58:28,268 INFO L567 ElimStorePlain]: treesize reduction 352, result has 9.3 percent of original size [2019-10-22 08:58:28,279 INFO L375 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 26 treesize of output 22 [2019-10-22 08:58:28,279 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:28,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:28,287 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_5| vanished before elimination [2019-10-22 08:58:28,287 INFO L464 ElimStorePlain]: Eliminatee v_prenex_14 vanished before elimination [2019-10-22 08:58:28,287 INFO L464 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2019-10-22 08:58:28,287 INFO L464 ElimStorePlain]: Eliminatee v_prenex_12 vanished before elimination [2019-10-22 08:58:28,287 INFO L464 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-10-22 08:58:28,287 INFO L464 ElimStorePlain]: Eliminatee v_prenex_6 vanished before elimination [2019-10-22 08:58:28,288 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:28,288 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 16 variables, input treesize:441, output treesize:10 [2019-10-22 08:58:28,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:28,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384842449] [2019-10-22 08:58:28,342 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:28,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988515805] [2019-10-22 08:58:28,342 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:28,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-10-22 08:58:28,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380296789] [2019-10-22 08:58:28,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:28,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:28,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:28,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:28,344 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 7 states. [2019-10-22 08:58:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:28,484 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2019-10-22 08:58:28,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:28,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-22 08:58:28,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:28,485 INFO L225 Difference]: With dead ends: 29 [2019-10-22 08:58:28,485 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 08:58:28,486 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:58:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 08:58:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2019-10-22 08:58:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 08:58:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-10-22 08:58:28,489 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 12 [2019-10-22 08:58:28,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:28,490 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-10-22 08:58:28,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-10-22 08:58:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:58:28,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:28,490 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:28,691 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1399075435, now seen corresponding path program 1 times [2019-10-22 08:58:28,692 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,692 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550380953] [2019-10-22 08:58:28,692 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,692 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,699 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:28,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588061650] [2019-10-22 08:58:28,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-22 08:58:28,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:28,785 INFO L375 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 39 treesize of output 35 [2019-10-22 08:58:28,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:28,812 INFO L567 ElimStorePlain]: treesize reduction 48, result has 38.5 percent of original size [2019-10-22 08:58:28,812 INFO L464 ElimStorePlain]: Eliminatee v_prenex_16 vanished before elimination [2019-10-22 08:58:28,812 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:28,813 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:82, output treesize:17 [2019-10-22 08:58:28,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:28,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550380953] [2019-10-22 08:58:28,863 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:28,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588061650] [2019-10-22 08:58:28,863 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:28,864 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-22 08:58:28,864 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196442467] [2019-10-22 08:58:28,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:28,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:28,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:28,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:28,865 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 8 states. [2019-10-22 08:58:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:29,075 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-10-22 08:58:29,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:29,075 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-10-22 08:58:29,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:29,076 INFO L225 Difference]: With dead ends: 35 [2019-10-22 08:58:29,076 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:58:29,077 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:58:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:58:29,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 22. [2019-10-22 08:58:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-22 08:58:29,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-10-22 08:58:29,081 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 12 [2019-10-22 08:58:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:29,081 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-10-22 08:58:29,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:29,082 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-10-22 08:58:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:58:29,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:29,083 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:29,283 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:29,283 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:29,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:29,284 INFO L82 PathProgramCache]: Analyzing trace with hash -863591089, now seen corresponding path program 2 times [2019-10-22 08:58:29,284 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:29,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025688270] [2019-10-22 08:58:29,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,285 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:29,288 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:29,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853648835] [2019-10-22 08:58:29,289 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:29,325 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 08:58:29,326 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:29,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:58:29,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:29,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025688270] [2019-10-22 08:58:29,354 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:29,355 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853648835] [2019-10-22 08:58:29,355 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:29,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-10-22 08:58:29,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124830086] [2019-10-22 08:58:29,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:29,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:29,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:29,356 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand 5 states. [2019-10-22 08:58:29,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:29,386 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2019-10-22 08:58:29,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:29,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-10-22 08:58:29,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:29,388 INFO L225 Difference]: With dead ends: 37 [2019-10-22 08:58:29,388 INFO L226 Difference]: Without dead ends: 20 [2019-10-22 08:58:29,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:29,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-22 08:58:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-22 08:58:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:58:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-22 08:58:29,392 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2019-10-22 08:58:29,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:29,393 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-22 08:58:29,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:29,393 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-22 08:58:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:29,393 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:29,393 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:29,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:29,594 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:29,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2141915984, now seen corresponding path program 3 times [2019-10-22 08:58:29,595 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:29,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735765500] [2019-10-22 08:58:29,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:29,599 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:29,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768144863] [2019-10-22 08:58:29,600 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:29,655 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-22 08:58:29,655 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:29,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-22 08:58:29,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:29,757 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-22 08:58:29,758 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,001 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 27 [2019-10-22 08:58:30,001 INFO L567 ElimStorePlain]: treesize reduction 398, result has 8.3 percent of original size [2019-10-22 08:58:30,001 INFO L464 ElimStorePlain]: Eliminatee v_prenex_30 vanished before elimination [2019-10-22 08:58:30,002 INFO L464 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2019-10-22 08:58:30,005 INFO L375 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 26 treesize of output 22 [2019-10-22 08:58:30,006 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,016 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:30,016 INFO L464 ElimStorePlain]: Eliminatee v_prenex_22 vanished before elimination [2019-10-22 08:58:30,017 INFO L464 ElimStorePlain]: Eliminatee v_prenex_18 vanished before elimination [2019-10-22 08:58:30,017 INFO L464 ElimStorePlain]: Eliminatee v_prenex_28 vanished before elimination [2019-10-22 08:58:30,017 INFO L464 ElimStorePlain]: Eliminatee v_prenex_26 vanished before elimination [2019-10-22 08:58:30,018 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,018 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 16 variables, input treesize:497, output treesize:10 [2019-10-22 08:58:30,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,041 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,069 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-22 08:58:30,069 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,077 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-22 08:58:30,077 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:58:30,094 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 81 [2019-10-22 08:58:30,094 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,101 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-22 08:58:30,101 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,138 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:30,139 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 128 [2019-10-22 08:58:30,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,140 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,172 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:30,172 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 119 [2019-10-22 08:58:30,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,174 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,187 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-22 08:58:30,187 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,208 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:30,208 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 124 [2019-10-22 08:58:30,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:30,210 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:30,427 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-10-22 08:58:30,428 INFO L567 ElimStorePlain]: treesize reduction 104, result has 76.4 percent of original size [2019-10-22 08:58:30,429 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-10-22 08:58:30,429 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:645, output treesize:243 [2019-10-22 08:58:32,086 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 58 [2019-10-22 08:58:32,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,103 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,104 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,131 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,150 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,153 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-22 08:58:32,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:32,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735765500] [2019-10-22 08:58:32,396 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:32,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768144863] [2019-10-22 08:58:32,397 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:32,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-22 08:58:32,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688231998] [2019-10-22 08:58:32,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:32,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:32,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:32,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:32,400 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 8 states. [2019-10-22 08:58:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:32,641 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-10-22 08:58:32,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:32,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2019-10-22 08:58:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:32,642 INFO L225 Difference]: With dead ends: 33 [2019-10-22 08:58:32,642 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 08:58:32,643 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 08:58:32,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2019-10-22 08:58:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 08:58:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-10-22 08:58:32,647 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 18 [2019-10-22 08:58:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:32,647 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-10-22 08:58:32,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:32,647 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-10-22 08:58:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:32,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:32,648 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:32,848 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:32,849 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:32,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:32,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1332569358, now seen corresponding path program 1 times [2019-10-22 08:58:32,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:32,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276779508] [2019-10-22 08:58:32,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:32,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:32,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:32,853 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:58:32,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424746607] [2019-10-22 08:58:32,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:32,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:32,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:32,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276779508] [2019-10-22 08:58:32,893 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:58:32,893 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424746607] [2019-10-22 08:58:32,893 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:32,893 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-10-22 08:58:32,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736441501] [2019-10-22 08:58:32,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:32,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:32,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:32,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:32,894 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 4 states. [2019-10-22 08:58:32,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:32,914 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-22 08:58:32,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:32,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-22 08:58:32,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:32,915 INFO L225 Difference]: With dead ends: 29 [2019-10-22 08:58:32,915 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:32,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:32,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-22 08:58:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:32,916 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:32,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:32,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:33,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:33,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:58:33,265 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:58:33,265 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 26) no Hoare annotation was computed. [2019-10-22 08:58:33,265 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 26) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_COL~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~j~0 0)) (and .cse0 (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) |ULTIMATE.start_main_~#matriz~0.offset|) ULTIMATE.start_main_~maior~0) .cse1 (= ULTIMATE.start_main_~j~0 1) (= ULTIMATE.start_main_~k~0 1)))) [2019-10-22 08:58:33,265 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 19 26) no Hoare annotation was computed. [2019-10-22 08:58:33,265 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 08:58:33,265 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L446 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2019-10-22 08:58:33,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 25) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 26) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L439 ceAbstractionStarter]: At program point L20-3(lines 20 26) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_COL~0)) (.cse2 (= ULTIMATE.start_main_~j~0 0))) (or (and (and .cse0 .cse1 (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) (+ |ULTIMATE.start_main_~#matriz~0.offset| (* (mod ULTIMATE.start_main_~j~0 4294967296) 4))) ULTIMATE.start_main_~maior~0)) (= ULTIMATE.start_main_~k~0 1) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~k~0 0) .cse2))) [2019-10-22 08:58:33,266 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 08:58:33,266 INFO L446 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-10-22 08:58:33,272 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:58:33,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:58:33,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:58:33,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:58:33,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:33 BoogieIcfgContainer [2019-10-22 08:58:33,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:33,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:33,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:33,281 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:33,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:26" (3/4) ... [2019-10-22 08:58:33,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:33,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 08:58:33,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:58:33,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 08:58:33,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ace9f288-2061-41f5-b920-8a8c7869ea82/bin/uautomizer/witness.graphml [2019-10-22 08:58:33,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:33,336 INFO L168 Benchmark]: Toolchain (without parser) took 7046.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.5 MB in the beginning and 981.9 MB in the end (delta: -37.4 MB). Peak memory consumption was 100.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:33,336 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:33,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:33,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:33,337 INFO L168 Benchmark]: Boogie Preprocessor took 32.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:33,338 INFO L168 Benchmark]: RCFGBuilder took 320.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:33,338 INFO L168 Benchmark]: TraceAbstraction took 6332.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.6 MB in the end (delta: 125.2 MB). Peak memory consumption was 125.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:33,338 INFO L168 Benchmark]: Witness Printer took 54.78 ms. Allocated memory is still 1.2 GB. Free memory was 983.6 MB in the beginning and 981.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:33,340 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 320.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6332.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.6 MB in the end (delta: 125.2 MB). Peak memory consumption was 125.2 MB. Max. memory is 11.5 GB. * Witness Printer took 54.78 ms. Allocated memory is still 1.2 GB. Free memory was 983.6 MB in the beginning and 981.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2019-10-22 08:58:33,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:58:33,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((1 == N_LIN && 1 == N_COL) && j == 0) || ((((1 == N_LIN && unknown-#memory_int-unknown[matriz][matriz] <= maior) && 1 == N_COL) && j == 1) && k == 1) - InvariantResult [Line: 20]: Loop Invariant [2019-10-22 08:58:33,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:58:33,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((1 == N_LIN && 1 == N_COL) && unknown-#memory_int-unknown[matriz][matriz + j % 4294967296 * 4] <= maior) && k == 1) && j == 0) || (((1 == N_LIN && 1 == N_COL) && k == 0) && j == 0) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 6.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 54 SDtfs, 67 SDslu, 102 SDs, 0 SdLazy, 251 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 74 HoareAnnotationTreeSize, 4 FomulaSimplifications, 184 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 41 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 83 ConstructedInterpolants, 5 QuantifiedInterpolants, 13454 SizeOfPredicates, 47 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 18/35 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...