./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0455ba49274114922cfe1b7739d9cb0a89e6c868 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:35:10,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:35:10,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:35:10,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:35:10,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:35:10,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:35:10,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:35:10,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:35:10,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:35:10,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:35:10,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:35:10,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:35:10,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:35:10,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:35:10,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:35:10,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:35:10,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:35:10,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:35:10,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:35:10,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:35:10,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:35:10,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:35:10,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:35:10,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:35:10,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:35:10,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:35:10,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:35:10,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:35:10,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:35:10,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:35:10,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:35:10,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:35:10,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:35:10,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:35:10,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:35:10,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:35:10,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:35:10,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:35:10,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:35:10,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:35:10,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:35:10,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 21:35:10,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:35:10,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:35:10,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:35:10,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:35:10,581 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:35:10,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:35:10,581 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:35:10,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:35:10,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:35:10,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:35:10,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:35:10,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:35:10,582 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 21:35:10,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:35:10,583 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:35:10,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:35:10,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:35:10,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:35:10,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:35:10,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:35:10,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:35:10,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:35:10,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:35:10,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:35:10,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:35:10,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:35:10,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:35:10,585 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/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0455ba49274114922cfe1b7739d9cb0a89e6c868 [2019-11-15 21:35:10,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:35:10,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:35:10,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:35:10,623 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:35:10,623 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:35:10,624 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-11-15 21:35:10,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/data/74ca5369a/bc551b9a4e5d4eb9b69ba3c810782f60/FLAGfb68fd189 [2019-11-15 21:35:11,030 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:35:11,031 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-11-15 21:35:11,036 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/data/74ca5369a/bc551b9a4e5d4eb9b69ba3c810782f60/FLAGfb68fd189 [2019-11-15 21:35:11,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/data/74ca5369a/bc551b9a4e5d4eb9b69ba3c810782f60 [2019-11-15 21:35:11,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:35:11,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:35:11,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:35:11,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:35:11,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:35:11,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da7206b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11, skipping insertion in model container [2019-11-15 21:35:11,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,066 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:35:11,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:35:11,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:35:11,208 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:35:11,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:35:11,291 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:35:11,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11 WrapperNode [2019-11-15 21:35:11,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:35:11,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:35:11,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:35:11,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:35:11,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:35:11,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:35:11,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:35:11,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:35:11,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... [2019-11-15 21:35:11,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:35:11,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:35:11,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:35:11,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:35:11,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 [2019-11-15 21:35:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:35:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:35:11,609 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:35:11,609 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 21:35:11,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:35:11 BoogieIcfgContainer [2019-11-15 21:35:11,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:35:11,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:35:11,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:35:11,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:35:11,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:35:11" (1/3) ... [2019-11-15 21:35:11,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6ee59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:35:11, skipping insertion in model container [2019-11-15 21:35:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:35:11" (2/3) ... [2019-11-15 21:35:11,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6ee59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:35:11, skipping insertion in model container [2019-11-15 21:35:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:35:11" (3/3) ... [2019-11-15 21:35:11,618 INFO L109 eAbstractionObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2019-11-15 21:35:11,627 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:35:11,634 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 21:35:11,645 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 21:35:11,684 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:35:11,684 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:35:11,685 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:35:11,685 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:35:11,685 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:35:11,685 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:35:11,685 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:35:11,686 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:35:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-15 21:35:11,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:35:11,708 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:11,709 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:35:11,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:11,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-15 21:35:11,723 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:11,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313328342] [2019-11-15 21:35:11,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:11,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:11,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:11,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313328342] [2019-11-15 21:35:11,829 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:35:11,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:35:11,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86373440] [2019-11-15 21:35:11,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:35:11,835 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:11,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:35:11,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:11,846 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-11-15 21:35:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:11,901 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2019-11-15 21:35:11,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:35:11,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:35:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:11,913 INFO L225 Difference]: With dead ends: 49 [2019-11-15 21:35:11,913 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 21:35:11,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 21:35:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-11-15 21:35:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 21:35:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-11-15 21:35:11,941 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2019-11-15 21:35:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:11,942 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-15 21:35:11,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:35:11,942 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-11-15 21:35:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:35:11,942 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:11,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:35:11,943 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:11,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:11,944 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-15 21:35:11,944 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:11,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084436424] [2019-11-15 21:35:11,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:11,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:11,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:11,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084436424] [2019-11-15 21:35:11,960 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:35:11,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:35:11,960 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904810697] [2019-11-15 21:35:11,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:35:11,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:11,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:35:11,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:11,962 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2019-11-15 21:35:11,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:11,987 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-11-15 21:35:11,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:35:11,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:35:11,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:11,989 INFO L225 Difference]: With dead ends: 21 [2019-11-15 21:35:11,989 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 21:35:11,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 21:35:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 21:35:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 21:35:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-11-15 21:35:11,993 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2019-11-15 21:35:11,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:11,994 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-11-15 21:35:11,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:35:11,994 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-11-15 21:35:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:35:11,994 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:11,994 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:35:11,995 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:11,995 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-15 21:35:11,996 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:11,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554551526] [2019-11-15 21:35:11,996 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:11,996 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:11,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554551526] [2019-11-15 21:35:12,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:35:12,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:35:12,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324865334] [2019-11-15 21:35:12,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:35:12,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:12,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:35:12,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:12,018 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states. [2019-11-15 21:35:12,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:12,049 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-11-15 21:35:12,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:35:12,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:35:12,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:12,050 INFO L225 Difference]: With dead ends: 25 [2019-11-15 21:35:12,050 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 21:35:12,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:12,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 21:35:12,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2019-11-15 21:35:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 21:35:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-11-15 21:35:12,055 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2019-11-15 21:35:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:12,055 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-11-15 21:35:12,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:35:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-11-15 21:35:12,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:35:12,056 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:12,056 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:35:12,056 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:12,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:12,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1365891962, now seen corresponding path program 1 times [2019-11-15 21:35:12,056 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:12,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836733301] [2019-11-15 21:35:12,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,084 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836733301] [2019-11-15 21:35:12,084 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:35:12,084 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:35:12,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593885623] [2019-11-15 21:35:12,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:35:12,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:12,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:35:12,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:12,085 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2019-11-15 21:35:12,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:12,096 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-11-15 21:35:12,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:35:12,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-15 21:35:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:12,098 INFO L225 Difference]: With dead ends: 18 [2019-11-15 21:35:12,098 INFO L226 Difference]: Without dead ends: 17 [2019-11-15 21:35:12,099 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:35:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-15 21:35:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-15 21:35:12,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-15 21:35:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-15 21:35:12,102 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2019-11-15 21:35:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:12,102 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-15 21:35:12,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:35:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-15 21:35:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:35:12,103 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:12,103 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:35:12,103 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:12,104 INFO L82 PathProgramCache]: Analyzing trace with hash -767237628, now seen corresponding path program 1 times [2019-11-15 21:35:12,104 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:12,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962933182] [2019-11-15 21:35:12,104 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,104 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962933182] [2019-11-15 21:35:12,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153265203] [2019-11-15 21:35:12,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-15 21:35:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:35:12,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:12,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:35:12,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2019-11-15 21:35:12,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609895271] [2019-11-15 21:35:12,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:35:12,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:12,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:35:12,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:35:12,212 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-11-15 21:35:12,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:12,252 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-11-15 21:35:12,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:35:12,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 21:35:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:12,255 INFO L225 Difference]: With dead ends: 26 [2019-11-15 21:35:12,255 INFO L226 Difference]: Without dead ends: 24 [2019-11-15 21:35:12,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:35:12,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-15 21:35:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2019-11-15 21:35:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 21:35:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-15 21:35:12,259 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 10 [2019-11-15 21:35:12,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:12,259 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-15 21:35:12,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:35:12,259 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-15 21:35:12,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:35:12,260 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:12,260 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-15 21:35:12,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:12,465 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:12,465 INFO L82 PathProgramCache]: Analyzing trace with hash -767237820, now seen corresponding path program 1 times [2019-11-15 21:35:12,465 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:12,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349532225] [2019-11-15 21:35:12,466 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,466 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349532225] [2019-11-15 21:35:12,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115489063] [2019-11-15 21:35:12,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-15 21:35:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:35:12,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,584 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:12,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:35:12,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369390410] [2019-11-15 21:35:12,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:35:12,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:12,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:35:12,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:35:12,585 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 4 states. Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:12,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:12,649 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2019-11-15 21:35:12,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:35:12,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 21:35:12,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:12,651 INFO L225 Difference]: With dead ends: 40 [2019-11-15 21:35:12,651 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 21:35:12,651 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:35:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 21:35:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2019-11-15 21:35:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 21:35:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2019-11-15 21:35:12,656 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 10 [2019-11-15 21:35:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:12,656 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2019-11-15 21:35:12,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:35:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2019-11-15 21:35:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 21:35:12,656 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:12,657 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:35:12,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:12,857 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:12,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1419016103, now seen corresponding path program 1 times [2019-11-15 21:35:12,858 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:12,858 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367326789] [2019-11-15 21:35:12,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:12,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367326789] [2019-11-15 21:35:12,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589927956] [2019-11-15 21:35:12,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 [2019-11-15 21:35:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:12,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:35:12,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:12,952 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:12,952 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-11-15 21:35:12,952 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152752958] [2019-11-15 21:35:12,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:35:12,953 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:12,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:35:12,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:35:12,953 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 6 states. [2019-11-15 21:35:12,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:12,987 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2019-11-15 21:35:12,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:35:12,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-15 21:35:12,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:12,988 INFO L225 Difference]: With dead ends: 61 [2019-11-15 21:35:12,988 INFO L226 Difference]: Without dead ends: 34 [2019-11-15 21:35:12,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:35:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-15 21:35:12,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-11-15 21:35:12,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 21:35:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2019-11-15 21:35:12,994 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 12 [2019-11-15 21:35:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:12,994 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2019-11-15 21:35:12,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:35:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2019-11-15 21:35:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 21:35:12,995 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:12,995 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1] [2019-11-15 21:35:13,195 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:13,201 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:13,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:13,201 INFO L82 PathProgramCache]: Analyzing trace with hash -907820867, now seen corresponding path program 2 times [2019-11-15 21:35:13,201 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:13,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979239473] [2019-11-15 21:35:13,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:13,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:13,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:13,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979239473] [2019-11-15 21:35:13,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220005645] [2019-11-15 21:35:13,242 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 [2019-11-15 21:35:13,267 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:13,268 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:13,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:35:13,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:13,274 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:13,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:35:13,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917031085] [2019-11-15 21:35:13,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:35:13,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:13,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:35:13,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:35:13,276 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 5 states. [2019-11-15 21:35:13,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:13,302 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2019-11-15 21:35:13,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:35:13,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-15 21:35:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:13,303 INFO L225 Difference]: With dead ends: 36 [2019-11-15 21:35:13,304 INFO L226 Difference]: Without dead ends: 35 [2019-11-15 21:35:13,304 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:35:13,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-15 21:35:13,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2019-11-15 21:35:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-15 21:35:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2019-11-15 21:35:13,309 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 16 [2019-11-15 21:35:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:13,309 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2019-11-15 21:35:13,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:35:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2019-11-15 21:35:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 21:35:13,310 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:13,310 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1] [2019-11-15 21:35:13,513 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:13,513 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:13,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:13,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1586405002, now seen corresponding path program 3 times [2019-11-15 21:35:13,514 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:13,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500771951] [2019-11-15 21:35:13,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:13,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:13,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:13,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500771951] [2019-11-15 21:35:13,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826454363] [2019-11-15 21:35:13,569 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 [2019-11-15 21:35:13,595 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:35:13,596 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:13,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:35:13,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:13,603 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:13,604 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:35:13,604 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755718497] [2019-11-15 21:35:13,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:35:13,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:13,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:35:13,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:35:13,605 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 6 states. [2019-11-15 21:35:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:13,664 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2019-11-15 21:35:13,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:35:13,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-15 21:35:13,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:13,666 INFO L225 Difference]: With dead ends: 84 [2019-11-15 21:35:13,666 INFO L226 Difference]: Without dead ends: 83 [2019-11-15 21:35:13,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:35:13,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-15 21:35:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2019-11-15 21:35:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-15 21:35:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2019-11-15 21:35:13,676 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 22 [2019-11-15 21:35:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:13,676 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2019-11-15 21:35:13,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:35:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2019-11-15 21:35:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 21:35:13,678 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:13,678 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1] [2019-11-15 21:35:13,878 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:13,879 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:13,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:13,879 INFO L82 PathProgramCache]: Analyzing trace with hash -89664657, now seen corresponding path program 4 times [2019-11-15 21:35:13,879 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:13,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006181921] [2019-11-15 21:35:13,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:13,880 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:13,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:13,940 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006181921] [2019-11-15 21:35:13,940 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787381067] [2019-11-15 21:35:13,940 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 [2019-11-15 21:35:13,971 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:13,971 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:13,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:35:13,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:13,980 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:13,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:35:13,980 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082861191] [2019-11-15 21:35:13,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:35:13,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:13,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:35:13,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:35:13,982 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 7 states. [2019-11-15 21:35:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:14,047 INFO L93 Difference]: Finished difference Result 145 states and 166 transitions. [2019-11-15 21:35:14,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:35:14,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-15 21:35:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:14,049 INFO L225 Difference]: With dead ends: 145 [2019-11-15 21:35:14,049 INFO L226 Difference]: Without dead ends: 144 [2019-11-15 21:35:14,049 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:35:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-15 21:35:14,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 90. [2019-11-15 21:35:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-15 21:35:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2019-11-15 21:35:14,059 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 28 [2019-11-15 21:35:14,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:14,059 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2019-11-15 21:35:14,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:35:14,060 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2019-11-15 21:35:14,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 21:35:14,060 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:14,061 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1] [2019-11-15 21:35:14,263 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:14,264 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:14,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1835149044, now seen corresponding path program 2 times [2019-11-15 21:35:14,264 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:14,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752990095] [2019-11-15 21:35:14,265 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:14,265 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:14,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:14,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752990095] [2019-11-15 21:35:14,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659633243] [2019-11-15 21:35:14,342 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/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 [2019-11-15 21:35:14,374 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:14,375 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:14,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:35:14,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-15 21:35:14,384 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:14,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-15 21:35:14,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393024074] [2019-11-15 21:35:14,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:35:14,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:14,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:35:14,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:35:14,386 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 7 states. [2019-11-15 21:35:14,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:14,434 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2019-11-15 21:35:14,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:35:14,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-11-15 21:35:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:14,435 INFO L225 Difference]: With dead ends: 124 [2019-11-15 21:35:14,435 INFO L226 Difference]: Without dead ends: 49 [2019-11-15 21:35:14,436 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:35:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-15 21:35:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2019-11-15 21:35:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 21:35:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2019-11-15 21:35:14,440 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 30 [2019-11-15 21:35:14,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:14,443 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2019-11-15 21:35:14,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:35:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2019-11-15 21:35:14,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-15 21:35:14,446 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:14,446 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1] [2019-11-15 21:35:14,646 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:14,647 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:14,647 INFO L82 PathProgramCache]: Analyzing trace with hash 661989032, now seen corresponding path program 5 times [2019-11-15 21:35:14,648 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:14,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159212476] [2019-11-15 21:35:14,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:14,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:14,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:14,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159212476] [2019-11-15 21:35:14,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793191246] [2019-11-15 21:35:14,758 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:14,807 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:35:14,807 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:14,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:35:14,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:14,827 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:14,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:35:14,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875012421] [2019-11-15 21:35:14,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:35:14,829 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:14,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:35:14,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:35:14,830 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 8 states. [2019-11-15 21:35:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:14,914 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2019-11-15 21:35:14,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:35:14,914 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-15 21:35:14,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:14,915 INFO L225 Difference]: With dead ends: 130 [2019-11-15 21:35:14,916 INFO L226 Difference]: Without dead ends: 129 [2019-11-15 21:35:14,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:35:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-15 21:35:14,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 117. [2019-11-15 21:35:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-15 21:35:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2019-11-15 21:35:14,937 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 34 [2019-11-15 21:35:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:14,937 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2019-11-15 21:35:14,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:35:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2019-11-15 21:35:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-15 21:35:14,944 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:14,944 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1] [2019-11-15 21:35:15,149 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:15,149 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:15,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:15,150 INFO L82 PathProgramCache]: Analyzing trace with hash 855337761, now seen corresponding path program 6 times [2019-11-15 21:35:15,150 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:15,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855806786] [2019-11-15 21:35:15,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:15,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:15,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:15,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855806786] [2019-11-15 21:35:15,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538491592] [2019-11-15 21:35:15,262 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:15,302 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:35:15,303 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:15,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:35:15,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:15,316 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:15,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:35:15,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618312993] [2019-11-15 21:35:15,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:35:15,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:15,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:35:15,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:35:15,318 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand 9 states. [2019-11-15 21:35:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:15,423 INFO L93 Difference]: Finished difference Result 221 states and 254 transitions. [2019-11-15 21:35:15,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:35:15,424 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2019-11-15 21:35:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:15,426 INFO L225 Difference]: With dead ends: 221 [2019-11-15 21:35:15,426 INFO L226 Difference]: Without dead ends: 220 [2019-11-15 21:35:15,446 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:35:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-15 21:35:15,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 132. [2019-11-15 21:35:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 21:35:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2019-11-15 21:35:15,465 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 40 [2019-11-15 21:35:15,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:15,465 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2019-11-15 21:35:15,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:35:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2019-11-15 21:35:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-15 21:35:15,467 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:15,467 INFO L380 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 2, 2, 2, 1, 1] [2019-11-15 21:35:15,673 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:15,673 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:15,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:15,674 INFO L82 PathProgramCache]: Analyzing trace with hash 74075198, now seen corresponding path program 3 times [2019-11-15 21:35:15,674 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:15,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925047585] [2019-11-15 21:35:15,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:15,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:15,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:15,795 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:15,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925047585] [2019-11-15 21:35:15,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889901572] [2019-11-15 21:35:15,796 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:15,840 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:35:15,840 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:15,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:35:15,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-11-15 21:35:15,891 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:15,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2019-11-15 21:35:15,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300981333] [2019-11-15 21:35:15,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:35:15,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:15,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:35:15,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:35:15,893 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand 12 states. [2019-11-15 21:35:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:15,977 INFO L93 Difference]: Finished difference Result 175 states and 201 transitions. [2019-11-15 21:35:15,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:35:15,978 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2019-11-15 21:35:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:15,979 INFO L225 Difference]: With dead ends: 175 [2019-11-15 21:35:15,979 INFO L226 Difference]: Without dead ends: 70 [2019-11-15 21:35:15,980 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:35:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-15 21:35:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2019-11-15 21:35:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-15 21:35:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2019-11-15 21:35:15,984 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 42 [2019-11-15 21:35:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:15,984 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2019-11-15 21:35:15,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:35:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2019-11-15 21:35:15,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-15 21:35:15,986 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:15,986 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1] [2019-11-15 21:35:16,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:16,189 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:16,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:16,189 INFO L82 PathProgramCache]: Analyzing trace with hash 714125530, now seen corresponding path program 7 times [2019-11-15 21:35:16,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:16,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096747794] [2019-11-15 21:35:16,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:16,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:16,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:16,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096747794] [2019-11-15 21:35:16,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981937199] [2019-11-15 21:35:16,270 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:16,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:35:16,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:16,319 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:16,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:35:16,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190393435] [2019-11-15 21:35:16,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:35:16,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:16,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:35:16,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:35:16,321 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand 10 states. [2019-11-15 21:35:16,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:16,383 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2019-11-15 21:35:16,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:35:16,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2019-11-15 21:35:16,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:16,384 INFO L225 Difference]: With dead ends: 72 [2019-11-15 21:35:16,384 INFO L226 Difference]: Without dead ends: 71 [2019-11-15 21:35:16,385 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:35:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-15 21:35:16,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2019-11-15 21:35:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-15 21:35:16,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2019-11-15 21:35:16,389 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 46 [2019-11-15 21:35:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:16,389 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2019-11-15 21:35:16,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:35:16,390 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2019-11-15 21:35:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-15 21:35:16,390 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:16,390 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1] [2019-11-15 21:35:16,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:16,597 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:16,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1497430061, now seen corresponding path program 8 times [2019-11-15 21:35:16,598 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:16,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965382338] [2019-11-15 21:35:16,598 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:16,598 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:16,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:16,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965382338] [2019-11-15 21:35:16,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078174276] [2019-11-15 21:35:16,694 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:16,726 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:16,727 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:16,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:35:16,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:16,738 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:16,738 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:35:16,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011348777] [2019-11-15 21:35:16,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:35:16,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:16,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:35:16,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:35:16,739 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand 11 states. [2019-11-15 21:35:16,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:16,846 INFO L93 Difference]: Finished difference Result 245 states and 278 transitions. [2019-11-15 21:35:16,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:35:16,847 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2019-11-15 21:35:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:16,848 INFO L225 Difference]: With dead ends: 245 [2019-11-15 21:35:16,848 INFO L226 Difference]: Without dead ends: 244 [2019-11-15 21:35:16,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:35:16,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-11-15 21:35:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 225. [2019-11-15 21:35:16,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-15 21:35:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 257 transitions. [2019-11-15 21:35:16,859 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 257 transitions. Word has length 52 [2019-11-15 21:35:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:16,860 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 257 transitions. [2019-11-15 21:35:16,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:35:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 257 transitions. [2019-11-15 21:35:16,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-15 21:35:16,860 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:16,860 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1] [2019-11-15 21:35:17,064 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:17,064 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:17,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1807450100, now seen corresponding path program 9 times [2019-11-15 21:35:17,065 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:17,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639796515] [2019-11-15 21:35:17,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:17,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:17,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:17,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639796515] [2019-11-15 21:35:17,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172364379] [2019-11-15 21:35:17,163 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:17,203 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:35:17,204 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:17,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:35:17,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:17,219 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:17,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:35:17,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825594979] [2019-11-15 21:35:17,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:35:17,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:17,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:35:17,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:35:17,221 INFO L87 Difference]: Start difference. First operand 225 states and 257 transitions. Second operand 12 states. [2019-11-15 21:35:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:17,366 INFO L93 Difference]: Finished difference Result 428 states and 494 transitions. [2019-11-15 21:35:17,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:35:17,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2019-11-15 21:35:17,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:17,369 INFO L225 Difference]: With dead ends: 428 [2019-11-15 21:35:17,369 INFO L226 Difference]: Without dead ends: 427 [2019-11-15 21:35:17,370 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:35:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-11-15 21:35:17,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 246. [2019-11-15 21:35:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-15 21:35:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 282 transitions. [2019-11-15 21:35:17,383 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 282 transitions. Word has length 58 [2019-11-15 21:35:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:17,384 INFO L462 AbstractCegarLoop]: Abstraction has 246 states and 282 transitions. [2019-11-15 21:35:17,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:35:17,384 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 282 transitions. [2019-11-15 21:35:17,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-15 21:35:17,385 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:17,385 INFO L380 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1] [2019-11-15 21:35:17,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:17,588 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:17,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:17,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1024665989, now seen corresponding path program 10 times [2019-11-15 21:35:17,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:17,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775077779] [2019-11-15 21:35:17,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:17,590 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:17,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:17,736 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775077779] [2019-11-15 21:35:17,736 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021137094] [2019-11-15 21:35:17,736 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:17,767 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:17,767 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:17,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-15 21:35:17,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:17,782 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:17,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2019-11-15 21:35:17,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326014425] [2019-11-15 21:35:17,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 21:35:17,783 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:17,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 21:35:17,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-11-15 21:35:17,784 INFO L87 Difference]: Start difference. First operand 246 states and 282 transitions. Second operand 13 states. [2019-11-15 21:35:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:17,897 INFO L93 Difference]: Finished difference Result 472 states and 546 transitions. [2019-11-15 21:35:17,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 21:35:17,898 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2019-11-15 21:35:17,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:17,902 INFO L225 Difference]: With dead ends: 472 [2019-11-15 21:35:17,902 INFO L226 Difference]: Without dead ends: 471 [2019-11-15 21:35:17,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-11-15 21:35:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-11-15 21:35:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 267. [2019-11-15 21:35:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-11-15 21:35:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 307 transitions. [2019-11-15 21:35:17,917 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 307 transitions. Word has length 64 [2019-11-15 21:35:17,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:17,917 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 307 transitions. [2019-11-15 21:35:17,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 21:35:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 307 transitions. [2019-11-15 21:35:17,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-15 21:35:17,918 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:17,918 INFO L380 BasicCegarLoop]: trace histogram [11, 10, 10, 8, 8, 8, 3, 3, 3, 1, 1] [2019-11-15 21:35:18,129 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:18,130 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:18,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1756468196, now seen corresponding path program 4 times [2019-11-15 21:35:18,130 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:18,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508896124] [2019-11-15 21:35:18,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:18,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:18,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:18,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508896124] [2019-11-15 21:35:18,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021377663] [2019-11-15 21:35:18,268 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:18,307 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:18,307 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:18,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:35:18,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 76 proven. 184 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-15 21:35:18,326 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:18,326 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 12 [2019-11-15 21:35:18,327 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335065403] [2019-11-15 21:35:18,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 21:35:18,327 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:18,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 21:35:18,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-11-15 21:35:18,328 INFO L87 Difference]: Start difference. First operand 267 states and 307 transitions. Second operand 13 states. [2019-11-15 21:35:18,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:18,388 INFO L93 Difference]: Finished difference Result 313 states and 359 transitions. [2019-11-15 21:35:18,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 21:35:18,389 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2019-11-15 21:35:18,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:18,390 INFO L225 Difference]: With dead ends: 313 [2019-11-15 21:35:18,390 INFO L226 Difference]: Without dead ends: 91 [2019-11-15 21:35:18,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-11-15 21:35:18,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-15 21:35:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2019-11-15 21:35:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-15 21:35:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2019-11-15 21:35:18,394 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 66 [2019-11-15 21:35:18,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:18,394 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2019-11-15 21:35:18,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 21:35:18,394 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2019-11-15 21:35:18,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-15 21:35:18,395 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:18,395 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1] [2019-11-15 21:35:18,596 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:18,596 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:18,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1856957378, now seen corresponding path program 11 times [2019-11-15 21:35:18,597 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:18,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394779045] [2019-11-15 21:35:18,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:18,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:18,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:18,782 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394779045] [2019-11-15 21:35:18,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876920874] [2019-11-15 21:35:18,783 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:18,834 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2019-11-15 21:35:18,834 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:18,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 21:35:18,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:18,849 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:18,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2019-11-15 21:35:18,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846940690] [2019-11-15 21:35:18,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 21:35:18,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:18,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 21:35:18,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-11-15 21:35:18,851 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 14 states. [2019-11-15 21:35:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:19,030 INFO L93 Difference]: Finished difference Result 332 states and 377 transitions. [2019-11-15 21:35:19,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-15 21:35:19,031 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2019-11-15 21:35:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:19,032 INFO L225 Difference]: With dead ends: 332 [2019-11-15 21:35:19,033 INFO L226 Difference]: Without dead ends: 331 [2019-11-15 21:35:19,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-11-15 21:35:19,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-11-15 21:35:19,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 306. [2019-11-15 21:35:19,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-15 21:35:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 350 transitions. [2019-11-15 21:35:19,044 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 350 transitions. Word has length 70 [2019-11-15 21:35:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:19,044 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 350 transitions. [2019-11-15 21:35:19,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 21:35:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 350 transitions. [2019-11-15 21:35:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-11-15 21:35:19,045 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:19,046 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1] [2019-11-15 21:35:19,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:19,249 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:19,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:19,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1336389577, now seen corresponding path program 12 times [2019-11-15 21:35:19,250 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:19,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520891437] [2019-11-15 21:35:19,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:19,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:19,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:19,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520891437] [2019-11-15 21:35:19,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59484075] [2019-11-15 21:35:19,411 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:19,453 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2019-11-15 21:35:19,453 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:19,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 21:35:19,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:19,471 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:19,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2019-11-15 21:35:19,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451720029] [2019-11-15 21:35:19,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-15 21:35:19,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:19,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-15 21:35:19,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-11-15 21:35:19,472 INFO L87 Difference]: Start difference. First operand 306 states and 350 transitions. Second operand 15 states. [2019-11-15 21:35:19,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:19,667 INFO L93 Difference]: Finished difference Result 578 states and 668 transitions. [2019-11-15 21:35:19,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 21:35:19,668 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 76 [2019-11-15 21:35:19,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:19,671 INFO L225 Difference]: With dead ends: 578 [2019-11-15 21:35:19,671 INFO L226 Difference]: Without dead ends: 577 [2019-11-15 21:35:19,672 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-11-15 21:35:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-11-15 21:35:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 327. [2019-11-15 21:35:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-11-15 21:35:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 375 transitions. [2019-11-15 21:35:19,686 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 375 transitions. Word has length 76 [2019-11-15 21:35:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:19,686 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 375 transitions. [2019-11-15 21:35:19,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-15 21:35:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 375 transitions. [2019-11-15 21:35:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-11-15 21:35:19,687 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:19,688 INFO L380 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1] [2019-11-15 21:35:19,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:19,893 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:19,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:19,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1313411728, now seen corresponding path program 13 times [2019-11-15 21:35:19,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:19,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546283020] [2019-11-15 21:35:19,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:19,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:19,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:20,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546283020] [2019-11-15 21:35:20,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067480910] [2019-11-15 21:35:20,123 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:20,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-15 21:35:20,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:20,200 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:20,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2019-11-15 21:35:20,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764679587] [2019-11-15 21:35:20,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 21:35:20,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:20,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 21:35:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:35:20,202 INFO L87 Difference]: Start difference. First operand 327 states and 375 transitions. Second operand 16 states. [2019-11-15 21:35:20,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:20,406 INFO L93 Difference]: Finished difference Result 622 states and 720 transitions. [2019-11-15 21:35:20,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 21:35:20,409 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2019-11-15 21:35:20,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:20,412 INFO L225 Difference]: With dead ends: 622 [2019-11-15 21:35:20,412 INFO L226 Difference]: Without dead ends: 621 [2019-11-15 21:35:20,413 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:35:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-11-15 21:35:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 348. [2019-11-15 21:35:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 21:35:20,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 400 transitions. [2019-11-15 21:35:20,430 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 400 transitions. Word has length 82 [2019-11-15 21:35:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:20,430 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 400 transitions. [2019-11-15 21:35:20,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 21:35:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 400 transitions. [2019-11-15 21:35:20,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-15 21:35:20,431 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:20,432 INFO L380 BasicCegarLoop]: trace histogram [14, 13, 13, 11, 11, 11, 3, 3, 3, 1, 1] [2019-11-15 21:35:20,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:20,635 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:20,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1913708871, now seen corresponding path program 5 times [2019-11-15 21:35:20,636 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:20,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490966120] [2019-11-15 21:35:20,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:20,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:20,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:20,825 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 0 proven. 467 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:20,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490966120] [2019-11-15 21:35:20,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974077690] [2019-11-15 21:35:20,826 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:20,886 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2019-11-15 21:35:20,886 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:20,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 21:35:20,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 103 proven. 352 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-15 21:35:20,902 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:20,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 15 [2019-11-15 21:35:20,902 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136158562] [2019-11-15 21:35:20,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 21:35:20,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:20,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 21:35:20,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:35:20,904 INFO L87 Difference]: Start difference. First operand 348 states and 400 transitions. Second operand 16 states. [2019-11-15 21:35:21,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:21,014 INFO L93 Difference]: Finished difference Result 394 states and 452 transitions. [2019-11-15 21:35:21,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 21:35:21,014 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2019-11-15 21:35:21,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:21,015 INFO L225 Difference]: With dead ends: 394 [2019-11-15 21:35:21,015 INFO L226 Difference]: Without dead ends: 109 [2019-11-15 21:35:21,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:35:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-15 21:35:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2019-11-15 21:35:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-15 21:35:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 108 transitions. [2019-11-15 21:35:21,019 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 108 transitions. Word has length 84 [2019-11-15 21:35:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:21,020 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 108 transitions. [2019-11-15 21:35:21,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 21:35:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 108 transitions. [2019-11-15 21:35:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-15 21:35:21,021 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:21,021 INFO L380 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1] [2019-11-15 21:35:21,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:21,229 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:21,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:21,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1372652567, now seen corresponding path program 14 times [2019-11-15 21:35:21,229 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:21,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251220073] [2019-11-15 21:35:21,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:21,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:21,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:21,416 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:21,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251220073] [2019-11-15 21:35:21,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067775836] [2019-11-15 21:35:21,417 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:21,470 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:21,470 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:21,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-15 21:35:21,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:21,498 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:21,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2019-11-15 21:35:21,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633814954] [2019-11-15 21:35:21,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 21:35:21,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:21,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 21:35:21,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-11-15 21:35:21,506 INFO L87 Difference]: Start difference. First operand 105 states and 108 transitions. Second operand 17 states. [2019-11-15 21:35:21,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:21,745 INFO L93 Difference]: Finished difference Result 419 states and 476 transitions. [2019-11-15 21:35:21,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-15 21:35:21,746 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2019-11-15 21:35:21,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:21,748 INFO L225 Difference]: With dead ends: 419 [2019-11-15 21:35:21,748 INFO L226 Difference]: Without dead ends: 418 [2019-11-15 21:35:21,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-11-15 21:35:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-11-15 21:35:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 387. [2019-11-15 21:35:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-11-15 21:35:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 443 transitions. [2019-11-15 21:35:21,760 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 443 transitions. Word has length 88 [2019-11-15 21:35:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:21,761 INFO L462 AbstractCegarLoop]: Abstraction has 387 states and 443 transitions. [2019-11-15 21:35:21,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 21:35:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 443 transitions. [2019-11-15 21:35:21,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-15 21:35:21,762 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:21,762 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1] [2019-11-15 21:35:21,962 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:21,962 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:21,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:21,963 INFO L82 PathProgramCache]: Analyzing trace with hash 146181026, now seen corresponding path program 15 times [2019-11-15 21:35:21,963 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:21,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980584283] [2019-11-15 21:35:21,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:21,963 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:21,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:22,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980584283] [2019-11-15 21:35:22,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531426179] [2019-11-15 21:35:22,165 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:22,218 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2019-11-15 21:35:22,218 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:22,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-15 21:35:22,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:22,238 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:22,239 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2019-11-15 21:35:22,239 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545312420] [2019-11-15 21:35:22,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-15 21:35:22,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:22,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-15 21:35:22,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-11-15 21:35:22,240 INFO L87 Difference]: Start difference. First operand 387 states and 443 transitions. Second operand 18 states. [2019-11-15 21:35:22,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:22,492 INFO L93 Difference]: Finished difference Result 728 states and 842 transitions. [2019-11-15 21:35:22,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-15 21:35:22,493 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 94 [2019-11-15 21:35:22,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:22,496 INFO L225 Difference]: With dead ends: 728 [2019-11-15 21:35:22,496 INFO L226 Difference]: Without dead ends: 727 [2019-11-15 21:35:22,497 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-11-15 21:35:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2019-11-15 21:35:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 408. [2019-11-15 21:35:22,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-11-15 21:35:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 468 transitions. [2019-11-15 21:35:22,514 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 468 transitions. Word has length 94 [2019-11-15 21:35:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:22,514 INFO L462 AbstractCegarLoop]: Abstraction has 408 states and 468 transitions. [2019-11-15 21:35:22,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-15 21:35:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 468 transitions. [2019-11-15 21:35:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-11-15 21:35:22,516 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:22,516 INFO L380 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1] [2019-11-15 21:35:22,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:22,720 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:22,720 INFO L82 PathProgramCache]: Analyzing trace with hash -143151973, now seen corresponding path program 16 times [2019-11-15 21:35:22,720 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:22,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045623985] [2019-11-15 21:35:22,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:22,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:22,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:22,971 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:22,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045623985] [2019-11-15 21:35:22,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204963749] [2019-11-15 21:35:22,972 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:23,018 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:23,018 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:23,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-15 21:35:23,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:23,041 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:23,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2019-11-15 21:35:23,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213857824] [2019-11-15 21:35:23,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-15 21:35:23,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:23,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-15 21:35:23,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-11-15 21:35:23,043 INFO L87 Difference]: Start difference. First operand 408 states and 468 transitions. Second operand 19 states. [2019-11-15 21:35:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:23,224 INFO L93 Difference]: Finished difference Result 772 states and 894 transitions. [2019-11-15 21:35:23,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-15 21:35:23,225 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2019-11-15 21:35:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:23,229 INFO L225 Difference]: With dead ends: 772 [2019-11-15 21:35:23,229 INFO L226 Difference]: Without dead ends: 771 [2019-11-15 21:35:23,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-11-15 21:35:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2019-11-15 21:35:23,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 429. [2019-11-15 21:35:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-11-15 21:35:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 493 transitions. [2019-11-15 21:35:23,245 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 493 transitions. Word has length 100 [2019-11-15 21:35:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:23,246 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 493 transitions. [2019-11-15 21:35:23,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-15 21:35:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 493 transitions. [2019-11-15 21:35:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-15 21:35:23,247 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:23,247 INFO L380 BasicCegarLoop]: trace histogram [17, 16, 16, 14, 14, 14, 3, 3, 3, 1, 1] [2019-11-15 21:35:23,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:23,451 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:23,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1251901874, now seen corresponding path program 6 times [2019-11-15 21:35:23,451 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:23,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22448906] [2019-11-15 21:35:23,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:23,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:23,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:23,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22448906] [2019-11-15 21:35:23,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115347207] [2019-11-15 21:35:23,690 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:23,730 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:35:23,730 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:23,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:35:23,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 201 proven. 21 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2019-11-15 21:35:23,823 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:23,823 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5] total 22 [2019-11-15 21:35:23,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622408633] [2019-11-15 21:35:23,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-15 21:35:23,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:23,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-15 21:35:23,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-11-15 21:35:23,826 INFO L87 Difference]: Start difference. First operand 429 states and 493 transitions. Second operand 23 states. [2019-11-15 21:35:23,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:23,926 INFO L93 Difference]: Finished difference Result 484 states and 557 transitions. [2019-11-15 21:35:23,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-15 21:35:23,927 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 102 [2019-11-15 21:35:23,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:23,928 INFO L225 Difference]: With dead ends: 484 [2019-11-15 21:35:23,928 INFO L226 Difference]: Without dead ends: 136 [2019-11-15 21:35:23,928 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-11-15 21:35:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-11-15 21:35:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2019-11-15 21:35:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-15 21:35:23,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2019-11-15 21:35:23,932 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 102 [2019-11-15 21:35:23,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:23,933 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2019-11-15 21:35:23,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-15 21:35:23,933 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2019-11-15 21:35:23,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-15 21:35:23,934 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:23,934 INFO L380 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1] [2019-11-15 21:35:24,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:24,138 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:24,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:24,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1288728276, now seen corresponding path program 17 times [2019-11-15 21:35:24,138 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:24,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243576139] [2019-11-15 21:35:24,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:24,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:24,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:24,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243576139] [2019-11-15 21:35:24,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878502504] [2019-11-15 21:35:24,414 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:24,474 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2019-11-15 21:35:24,474 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:24,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 21:35:24,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:24,500 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:24,500 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2019-11-15 21:35:24,500 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406013650] [2019-11-15 21:35:24,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-15 21:35:24,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:24,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-15 21:35:24,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-11-15 21:35:24,502 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand 20 states. [2019-11-15 21:35:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:24,631 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2019-11-15 21:35:24,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-15 21:35:24,632 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106 [2019-11-15 21:35:24,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:24,633 INFO L225 Difference]: With dead ends: 138 [2019-11-15 21:35:24,634 INFO L226 Difference]: Without dead ends: 137 [2019-11-15 21:35:24,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-11-15 21:35:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-15 21:35:24,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2019-11-15 21:35:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-15 21:35:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2019-11-15 21:35:24,652 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 106 [2019-11-15 21:35:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:24,653 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2019-11-15 21:35:24,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-15 21:35:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2019-11-15 21:35:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-15 21:35:24,654 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:24,654 INFO L380 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1] [2019-11-15 21:35:24,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:24,858 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:24,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:24,858 INFO L82 PathProgramCache]: Analyzing trace with hash -2142051763, now seen corresponding path program 18 times [2019-11-15 21:35:24,858 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:24,858 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632026712] [2019-11-15 21:35:24,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:24,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:24,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:25,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632026712] [2019-11-15 21:35:25,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068047220] [2019-11-15 21:35:25,127 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:25,182 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2019-11-15 21:35:25,182 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:25,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-15 21:35:25,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:25,207 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:25,207 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2019-11-15 21:35:25,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783263288] [2019-11-15 21:35:25,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-15 21:35:25,208 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:25,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-15 21:35:25,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-11-15 21:35:25,209 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand 21 states. [2019-11-15 21:35:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:25,545 INFO L93 Difference]: Finished difference Result 635 states and 725 transitions. [2019-11-15 21:35:25,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-15 21:35:25,545 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 112 [2019-11-15 21:35:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:25,548 INFO L225 Difference]: With dead ends: 635 [2019-11-15 21:35:25,548 INFO L226 Difference]: Without dead ends: 634 [2019-11-15 21:35:25,549 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-11-15 21:35:25,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-11-15 21:35:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 594. [2019-11-15 21:35:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2019-11-15 21:35:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 682 transitions. [2019-11-15 21:35:25,566 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 682 transitions. Word has length 112 [2019-11-15 21:35:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:25,567 INFO L462 AbstractCegarLoop]: Abstraction has 594 states and 682 transitions. [2019-11-15 21:35:25,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-15 21:35:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 682 transitions. [2019-11-15 21:35:25,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-11-15 21:35:25,568 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:25,568 INFO L380 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1] [2019-11-15 21:35:25,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:25,772 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:25,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:25,772 INFO L82 PathProgramCache]: Analyzing trace with hash -138078458, now seen corresponding path program 19 times [2019-11-15 21:35:25,772 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:25,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498209103] [2019-11-15 21:35:25,773 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:25,773 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:25,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:26,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498209103] [2019-11-15 21:35:26,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757601325] [2019-11-15 21:35:26,093 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:26,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-15 21:35:26,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:26,174 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:26,174 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2019-11-15 21:35:26,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751278988] [2019-11-15 21:35:26,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-15 21:35:26,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:26,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-15 21:35:26,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-11-15 21:35:26,176 INFO L87 Difference]: Start difference. First operand 594 states and 682 transitions. Second operand 22 states. [2019-11-15 21:35:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:26,462 INFO L93 Difference]: Finished difference Result 1129 states and 1308 transitions. [2019-11-15 21:35:26,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-15 21:35:26,462 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 118 [2019-11-15 21:35:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:26,470 INFO L225 Difference]: With dead ends: 1129 [2019-11-15 21:35:26,470 INFO L226 Difference]: Without dead ends: 1128 [2019-11-15 21:35:26,472 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-11-15 21:35:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-11-15 21:35:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 621. [2019-11-15 21:35:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2019-11-15 21:35:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 714 transitions. [2019-11-15 21:35:26,493 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 714 transitions. Word has length 118 [2019-11-15 21:35:26,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:26,494 INFO L462 AbstractCegarLoop]: Abstraction has 621 states and 714 transitions. [2019-11-15 21:35:26,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-15 21:35:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 714 transitions. [2019-11-15 21:35:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-11-15 21:35:26,495 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:26,496 INFO L380 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1] [2019-11-15 21:35:26,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:26,699 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:26,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:26,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1876878081, now seen corresponding path program 20 times [2019-11-15 21:35:26,700 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:26,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551169074] [2019-11-15 21:35:26,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:26,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:26,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:26,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551169074] [2019-11-15 21:35:26,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545726664] [2019-11-15 21:35:26,988 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:27,041 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:27,041 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:27,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-15 21:35:27,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:27,068 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:27,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2019-11-15 21:35:27,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791887741] [2019-11-15 21:35:27,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-15 21:35:27,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:27,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-15 21:35:27,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-11-15 21:35:27,070 INFO L87 Difference]: Start difference. First operand 621 states and 714 transitions. Second operand 23 states. [2019-11-15 21:35:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:27,457 INFO L93 Difference]: Finished difference Result 1185 states and 1374 transitions. [2019-11-15 21:35:27,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-15 21:35:27,458 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 124 [2019-11-15 21:35:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:27,465 INFO L225 Difference]: With dead ends: 1185 [2019-11-15 21:35:27,465 INFO L226 Difference]: Without dead ends: 1184 [2019-11-15 21:35:27,466 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-11-15 21:35:27,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2019-11-15 21:35:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 648. [2019-11-15 21:35:27,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2019-11-15 21:35:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 746 transitions. [2019-11-15 21:35:27,489 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 746 transitions. Word has length 124 [2019-11-15 21:35:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:27,489 INFO L462 AbstractCegarLoop]: Abstraction has 648 states and 746 transitions. [2019-11-15 21:35:27,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-15 21:35:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 746 transitions. [2019-11-15 21:35:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-11-15 21:35:27,491 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:27,491 INFO L380 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1] [2019-11-15 21:35:27,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:27,695 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:27,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:27,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1721041976, now seen corresponding path program 21 times [2019-11-15 21:35:27,695 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:27,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549706228] [2019-11-15 21:35:27,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:27,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:27,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:28,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549706228] [2019-11-15 21:35:28,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835412985] [2019-11-15 21:35:28,067 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:28,130 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2019-11-15 21:35:28,130 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:28,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-15 21:35:28,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:28,158 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:28,158 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2019-11-15 21:35:28,159 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952712608] [2019-11-15 21:35:28,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-15 21:35:28,159 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:28,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-15 21:35:28,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-11-15 21:35:28,160 INFO L87 Difference]: Start difference. First operand 648 states and 746 transitions. Second operand 24 states. [2019-11-15 21:35:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:28,466 INFO L93 Difference]: Finished difference Result 1241 states and 1440 transitions. [2019-11-15 21:35:28,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-15 21:35:28,467 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 130 [2019-11-15 21:35:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:28,474 INFO L225 Difference]: With dead ends: 1241 [2019-11-15 21:35:28,474 INFO L226 Difference]: Without dead ends: 1240 [2019-11-15 21:35:28,475 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-11-15 21:35:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2019-11-15 21:35:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 675. [2019-11-15 21:35:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2019-11-15 21:35:28,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 778 transitions. [2019-11-15 21:35:28,505 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 778 transitions. Word has length 130 [2019-11-15 21:35:28,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:28,506 INFO L462 AbstractCegarLoop]: Abstraction has 675 states and 778 transitions. [2019-11-15 21:35:28,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-15 21:35:28,506 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 778 transitions. [2019-11-15 21:35:28,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-15 21:35:28,508 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:28,508 INFO L380 BasicCegarLoop]: trace histogram [22, 21, 21, 18, 18, 18, 4, 4, 4, 1, 1] [2019-11-15 21:35:28,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:28,712 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:28,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1212648713, now seen corresponding path program 7 times [2019-11-15 21:35:28,712 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:28,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602666085] [2019-11-15 21:35:28,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:28,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:28,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:29,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602666085] [2019-11-15 21:35:29,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773327594] [2019-11-15 21:35:29,067 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:29,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-15 21:35:29,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:29,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 240 proven. 954 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-15 21:35:29,156 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:29,156 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 23 [2019-11-15 21:35:29,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582650461] [2019-11-15 21:35:29,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-15 21:35:29,157 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:29,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-15 21:35:29,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-11-15 21:35:29,158 INFO L87 Difference]: Start difference. First operand 675 states and 778 transitions. Second operand 24 states. [2019-11-15 21:35:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:29,258 INFO L93 Difference]: Finished difference Result 733 states and 844 transitions. [2019-11-15 21:35:29,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-15 21:35:29,259 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 132 [2019-11-15 21:35:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:29,260 INFO L225 Difference]: With dead ends: 733 [2019-11-15 21:35:29,260 INFO L226 Difference]: Without dead ends: 163 [2019-11-15 21:35:29,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-11-15 21:35:29,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-15 21:35:29,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2019-11-15 21:35:29,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-15 21:35:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2019-11-15 21:35:29,266 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 132 [2019-11-15 21:35:29,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:29,266 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2019-11-15 21:35:29,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-15 21:35:29,266 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2019-11-15 21:35:29,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-15 21:35:29,267 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:29,268 INFO L380 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1] [2019-11-15 21:35:29,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:29,477 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:29,477 INFO L82 PathProgramCache]: Analyzing trace with hash -511517519, now seen corresponding path program 22 times [2019-11-15 21:35:29,478 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:29,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873014470] [2019-11-15 21:35:29,478 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:29,478 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:29,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:29,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873014470] [2019-11-15 21:35:29,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247923380] [2019-11-15 21:35:29,826 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:29,891 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:29,892 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:29,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-15 21:35:29,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:29,924 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:29,925 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2019-11-15 21:35:29,925 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200924510] [2019-11-15 21:35:29,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-15 21:35:29,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:29,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-15 21:35:29,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-11-15 21:35:29,926 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand 25 states. [2019-11-15 21:35:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:30,209 INFO L93 Difference]: Finished difference Result 775 states and 885 transitions. [2019-11-15 21:35:30,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-15 21:35:30,213 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 136 [2019-11-15 21:35:30,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:30,218 INFO L225 Difference]: With dead ends: 775 [2019-11-15 21:35:30,218 INFO L226 Difference]: Without dead ends: 774 [2019-11-15 21:35:30,219 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-11-15 21:35:30,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2019-11-15 21:35:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 726. [2019-11-15 21:35:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2019-11-15 21:35:30,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 834 transitions. [2019-11-15 21:35:30,241 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 834 transitions. Word has length 136 [2019-11-15 21:35:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:30,242 INFO L462 AbstractCegarLoop]: Abstraction has 726 states and 834 transitions. [2019-11-15 21:35:30,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-15 21:35:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 834 transitions. [2019-11-15 21:35:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-11-15 21:35:30,244 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:30,244 INFO L380 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1] [2019-11-15 21:35:30,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:30,447 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:30,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:30,448 INFO L82 PathProgramCache]: Analyzing trace with hash -109005206, now seen corresponding path program 23 times [2019-11-15 21:35:30,448 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:30,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903496842] [2019-11-15 21:35:30,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:30,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:30,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:30,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:30,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903496842] [2019-11-15 21:35:30,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560835013] [2019-11-15 21:35:30,890 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:30,972 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2019-11-15 21:35:30,972 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:30,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-15 21:35:30,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:31,005 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:31,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2019-11-15 21:35:31,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874244248] [2019-11-15 21:35:31,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-15 21:35:31,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:31,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-15 21:35:31,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-11-15 21:35:31,007 INFO L87 Difference]: Start difference. First operand 726 states and 834 transitions. Second operand 26 states. [2019-11-15 21:35:31,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:31,443 INFO L93 Difference]: Finished difference Result 1377 states and 1596 transitions. [2019-11-15 21:35:31,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-15 21:35:31,444 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 142 [2019-11-15 21:35:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:31,451 INFO L225 Difference]: With dead ends: 1377 [2019-11-15 21:35:31,451 INFO L226 Difference]: Without dead ends: 1376 [2019-11-15 21:35:31,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-11-15 21:35:31,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-11-15 21:35:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 753. [2019-11-15 21:35:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2019-11-15 21:35:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 866 transitions. [2019-11-15 21:35:31,476 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 866 transitions. Word has length 142 [2019-11-15 21:35:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:31,477 INFO L462 AbstractCegarLoop]: Abstraction has 753 states and 866 transitions. [2019-11-15 21:35:31,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-15 21:35:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 866 transitions. [2019-11-15 21:35:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-15 21:35:31,479 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:31,479 INFO L380 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1] [2019-11-15 21:35:31,683 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:31,683 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:31,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1034378909, now seen corresponding path program 24 times [2019-11-15 21:35:31,684 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:31,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689009111] [2019-11-15 21:35:31,684 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:31,685 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:31,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:32,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689009111] [2019-11-15 21:35:32,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992912271] [2019-11-15 21:35:32,088 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:32,153 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2019-11-15 21:35:32,153 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:32,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-15 21:35:32,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:32,187 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:32,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2019-11-15 21:35:32,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246854540] [2019-11-15 21:35:32,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-15 21:35:32,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:32,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-15 21:35:32,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-11-15 21:35:32,189 INFO L87 Difference]: Start difference. First operand 753 states and 866 transitions. Second operand 27 states. [2019-11-15 21:35:32,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:32,551 INFO L93 Difference]: Finished difference Result 1433 states and 1662 transitions. [2019-11-15 21:35:32,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-15 21:35:32,552 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 148 [2019-11-15 21:35:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:32,558 INFO L225 Difference]: With dead ends: 1433 [2019-11-15 21:35:32,558 INFO L226 Difference]: Without dead ends: 1432 [2019-11-15 21:35:32,559 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-11-15 21:35:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2019-11-15 21:35:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 780. [2019-11-15 21:35:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2019-11-15 21:35:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 898 transitions. [2019-11-15 21:35:32,585 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 898 transitions. Word has length 148 [2019-11-15 21:35:32,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:32,586 INFO L462 AbstractCegarLoop]: Abstraction has 780 states and 898 transitions. [2019-11-15 21:35:32,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-15 21:35:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 898 transitions. [2019-11-15 21:35:32,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-15 21:35:32,588 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:32,588 INFO L380 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 1, 1] [2019-11-15 21:35:32,791 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:32,791 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:32,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:32,792 INFO L82 PathProgramCache]: Analyzing trace with hash 872983964, now seen corresponding path program 25 times [2019-11-15 21:35:32,792 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:32,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978397769] [2019-11-15 21:35:32,792 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:32,792 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:32,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:33,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978397769] [2019-11-15 21:35:33,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391870673] [2019-11-15 21:35:33,224 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:33,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-15 21:35:33,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:33,317 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:33,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2019-11-15 21:35:33,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099388067] [2019-11-15 21:35:33,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-15 21:35:33,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:33,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-15 21:35:33,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-11-15 21:35:33,319 INFO L87 Difference]: Start difference. First operand 780 states and 898 transitions. Second operand 28 states. [2019-11-15 21:35:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:33,779 INFO L93 Difference]: Finished difference Result 1489 states and 1728 transitions. [2019-11-15 21:35:33,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-15 21:35:33,780 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 154 [2019-11-15 21:35:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:33,787 INFO L225 Difference]: With dead ends: 1489 [2019-11-15 21:35:33,787 INFO L226 Difference]: Without dead ends: 1488 [2019-11-15 21:35:33,788 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-11-15 21:35:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2019-11-15 21:35:33,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 807. [2019-11-15 21:35:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-11-15 21:35:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 930 transitions. [2019-11-15 21:35:33,821 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 930 transitions. Word has length 154 [2019-11-15 21:35:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:33,822 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 930 transitions. [2019-11-15 21:35:33,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-15 21:35:33,822 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 930 transitions. [2019-11-15 21:35:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-15 21:35:33,824 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:33,824 INFO L380 BasicCegarLoop]: trace histogram [26, 25, 25, 22, 22, 22, 4, 4, 4, 1, 1] [2019-11-15 21:35:34,029 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:34,032 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:34,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:34,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2022281875, now seen corresponding path program 8 times [2019-11-15 21:35:34,034 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:34,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968875277] [2019-11-15 21:35:34,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:34,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:34,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:34,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968875277] [2019-11-15 21:35:34,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635814377] [2019-11-15 21:35:34,503 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:34,573 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:34,573 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:34,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-15 21:35:34,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 292 proven. 1430 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-15 21:35:34,624 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:34,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 27 [2019-11-15 21:35:34,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643148669] [2019-11-15 21:35:34,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-15 21:35:34,626 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:34,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-15 21:35:34,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-11-15 21:35:34,626 INFO L87 Difference]: Start difference. First operand 807 states and 930 transitions. Second operand 28 states. [2019-11-15 21:35:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:34,785 INFO L93 Difference]: Finished difference Result 865 states and 996 transitions. [2019-11-15 21:35:34,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-15 21:35:34,786 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 156 [2019-11-15 21:35:34,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:34,787 INFO L225 Difference]: With dead ends: 865 [2019-11-15 21:35:34,787 INFO L226 Difference]: Without dead ends: 187 [2019-11-15 21:35:34,788 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-11-15 21:35:34,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-11-15 21:35:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2019-11-15 21:35:34,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-15 21:35:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 187 transitions. [2019-11-15 21:35:34,791 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 187 transitions. Word has length 156 [2019-11-15 21:35:34,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:34,791 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 187 transitions. [2019-11-15 21:35:34,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-15 21:35:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 187 transitions. [2019-11-15 21:35:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-15 21:35:34,792 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:34,792 INFO L380 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 1, 1] [2019-11-15 21:35:34,996 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:34,996 INFO L410 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:34,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:34,996 INFO L82 PathProgramCache]: Analyzing trace with hash 868412181, now seen corresponding path program 26 times [2019-11-15 21:35:34,996 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:34,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105947408] [2019-11-15 21:35:34,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:34,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:34,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:35,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 2028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:35,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105947408] [2019-11-15 21:35:35,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653366807] [2019-11-15 21:35:35,447 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:35,510 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:35,510 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:35,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-15 21:35:35,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 2028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:35,547 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:35,548 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2019-11-15 21:35:35,548 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995089638] [2019-11-15 21:35:35,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-11-15 21:35:35,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:35,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-11-15 21:35:35,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-11-15 21:35:35,549 INFO L87 Difference]: Start difference. First operand 183 states and 187 transitions. Second operand 29 states. [2019-11-15 21:35:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:35,947 INFO L93 Difference]: Finished difference Result 915 states and 1045 transitions. [2019-11-15 21:35:35,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-15 21:35:35,948 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 160 [2019-11-15 21:35:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:35,951 INFO L225 Difference]: With dead ends: 915 [2019-11-15 21:35:35,951 INFO L226 Difference]: Without dead ends: 914 [2019-11-15 21:35:35,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-11-15 21:35:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2019-11-15 21:35:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 858. [2019-11-15 21:35:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2019-11-15 21:35:35,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 986 transitions. [2019-11-15 21:35:35,972 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 986 transitions. Word has length 160 [2019-11-15 21:35:35,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:35,972 INFO L462 AbstractCegarLoop]: Abstraction has 858 states and 986 transitions. [2019-11-15 21:35:35,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-11-15 21:35:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 986 transitions. [2019-11-15 21:35:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-15 21:35:35,973 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:35,974 INFO L380 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 1, 1] [2019-11-15 21:35:36,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:36,176 INFO L410 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:36,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:36,177 INFO L82 PathProgramCache]: Analyzing trace with hash -588420658, now seen corresponding path program 27 times [2019-11-15 21:35:36,177 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:36,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658235857] [2019-11-15 21:35:36,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:36,178 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:36,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2187 backedges. 0 proven. 2187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:36,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658235857] [2019-11-15 21:35:36,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048402478] [2019-11-15 21:35:36,632 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:36,719 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2019-11-15 21:35:36,719 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:36,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-15 21:35:36,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2187 backedges. 0 proven. 2187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:36,752 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:36,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2019-11-15 21:35:36,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604450871] [2019-11-15 21:35:36,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-15 21:35:36,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:36,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-15 21:35:36,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-11-15 21:35:36,754 INFO L87 Difference]: Start difference. First operand 858 states and 986 transitions. Second operand 30 states. [2019-11-15 21:35:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:37,171 INFO L93 Difference]: Finished difference Result 1625 states and 1884 transitions. [2019-11-15 21:35:37,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-11-15 21:35:37,171 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 166 [2019-11-15 21:35:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:37,177 INFO L225 Difference]: With dead ends: 1625 [2019-11-15 21:35:37,177 INFO L226 Difference]: Without dead ends: 1624 [2019-11-15 21:35:37,178 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-11-15 21:35:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2019-11-15 21:35:37,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 885. [2019-11-15 21:35:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2019-11-15 21:35:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1018 transitions. [2019-11-15 21:35:37,200 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1018 transitions. Word has length 166 [2019-11-15 21:35:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:37,200 INFO L462 AbstractCegarLoop]: Abstraction has 885 states and 1018 transitions. [2019-11-15 21:35:37,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-15 21:35:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1018 transitions. [2019-11-15 21:35:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-15 21:35:37,201 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:37,202 INFO L380 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 1, 1] [2019-11-15 21:35:37,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:37,405 INFO L410 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:37,405 INFO L82 PathProgramCache]: Analyzing trace with hash 170015175, now seen corresponding path program 28 times [2019-11-15 21:35:37,405 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:37,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920220944] [2019-11-15 21:35:37,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:37,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:37,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:37,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920220944] [2019-11-15 21:35:37,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769806533] [2019-11-15 21:35:37,961 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:38,041 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:38,041 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:38,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-15 21:35:38,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:38,088 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:38,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2019-11-15 21:35:38,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403571338] [2019-11-15 21:35:38,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-15 21:35:38,089 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:38,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-15 21:35:38,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-11-15 21:35:38,090 INFO L87 Difference]: Start difference. First operand 885 states and 1018 transitions. Second operand 31 states. [2019-11-15 21:35:38,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:38,589 INFO L93 Difference]: Finished difference Result 1681 states and 1950 transitions. [2019-11-15 21:35:38,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-15 21:35:38,590 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 172 [2019-11-15 21:35:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:38,596 INFO L225 Difference]: With dead ends: 1681 [2019-11-15 21:35:38,596 INFO L226 Difference]: Without dead ends: 1680 [2019-11-15 21:35:38,596 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-11-15 21:35:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2019-11-15 21:35:38,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 912. [2019-11-15 21:35:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2019-11-15 21:35:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1050 transitions. [2019-11-15 21:35:38,615 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1050 transitions. Word has length 172 [2019-11-15 21:35:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:38,615 INFO L462 AbstractCegarLoop]: Abstraction has 912 states and 1050 transitions. [2019-11-15 21:35:38,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-15 21:35:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1050 transitions. [2019-11-15 21:35:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-15 21:35:38,616 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:38,617 INFO L380 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 1, 1] [2019-11-15 21:35:38,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:38,820 INFO L410 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:38,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:38,820 INFO L82 PathProgramCache]: Analyzing trace with hash 506424064, now seen corresponding path program 29 times [2019-11-15 21:35:38,820 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:38,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033551400] [2019-11-15 21:35:38,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:38,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:38,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:39,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033551400] [2019-11-15 21:35:39,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301010768] [2019-11-15 21:35:39,352 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:39,436 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2019-11-15 21:35:39,436 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:39,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-15 21:35:39,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:39,479 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:39,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2019-11-15 21:35:39,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16047546] [2019-11-15 21:35:39,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-11-15 21:35:39,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:39,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-11-15 21:35:39,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2019-11-15 21:35:39,481 INFO L87 Difference]: Start difference. First operand 912 states and 1050 transitions. Second operand 32 states. [2019-11-15 21:35:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:40,047 INFO L93 Difference]: Finished difference Result 1737 states and 2016 transitions. [2019-11-15 21:35:40,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-15 21:35:40,047 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 178 [2019-11-15 21:35:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:40,056 INFO L225 Difference]: With dead ends: 1737 [2019-11-15 21:35:40,056 INFO L226 Difference]: Without dead ends: 1736 [2019-11-15 21:35:40,057 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2019-11-15 21:35:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2019-11-15 21:35:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 939. [2019-11-15 21:35:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-11-15 21:35:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1082 transitions. [2019-11-15 21:35:40,082 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1082 transitions. Word has length 178 [2019-11-15 21:35:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:40,082 INFO L462 AbstractCegarLoop]: Abstraction has 939 states and 1082 transitions. [2019-11-15 21:35:40,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-11-15 21:35:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1082 transitions. [2019-11-15 21:35:40,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-15 21:35:40,083 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:40,084 INFO L380 BasicCegarLoop]: trace histogram [30, 29, 29, 26, 26, 26, 4, 4, 4, 1, 1] [2019-11-15 21:35:40,287 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:40,290 INFO L410 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:40,290 INFO L82 PathProgramCache]: Analyzing trace with hash -2099027503, now seen corresponding path program 9 times [2019-11-15 21:35:40,291 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:40,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784880871] [2019-11-15 21:35:40,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:40,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:40,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 0 proven. 2373 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:40,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784880871] [2019-11-15 21:35:40,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073422454] [2019-11-15 21:35:40,904 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:40,971 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-15 21:35:40,971 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:40,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:35:40,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 610 proven. 59 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2019-11-15 21:35:41,178 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:41,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 7] total 37 [2019-11-15 21:35:41,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483441618] [2019-11-15 21:35:41,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-15 21:35:41,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:41,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-15 21:35:41,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-11-15 21:35:41,180 INFO L87 Difference]: Start difference. First operand 939 states and 1082 transitions. Second operand 38 states. [2019-11-15 21:35:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:41,323 INFO L93 Difference]: Finished difference Result 1012 states and 1168 transitions. [2019-11-15 21:35:41,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-11-15 21:35:41,324 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 180 [2019-11-15 21:35:41,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:41,325 INFO L225 Difference]: With dead ends: 1012 [2019-11-15 21:35:41,325 INFO L226 Difference]: Without dead ends: 226 [2019-11-15 21:35:41,326 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-11-15 21:35:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-11-15 21:35:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 225. [2019-11-15 21:35:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-15 21:35:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 231 transitions. [2019-11-15 21:35:41,330 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 231 transitions. Word has length 180 [2019-11-15 21:35:41,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:41,330 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 231 transitions. [2019-11-15 21:35:41,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-15 21:35:41,330 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 231 transitions. [2019-11-15 21:35:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-11-15 21:35:41,331 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:41,331 INFO L380 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 1, 1] [2019-11-15 21:35:41,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:41,532 INFO L410 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:41,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:41,533 INFO L82 PathProgramCache]: Analyzing trace with hash 219614585, now seen corresponding path program 30 times [2019-11-15 21:35:41,533 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:41,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705437927] [2019-11-15 21:35:41,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:41,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:41,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:42,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705437927] [2019-11-15 21:35:42,129 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630397170] [2019-11-15 21:35:42,129 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:42,216 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2019-11-15 21:35:42,216 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:42,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-15 21:35:42,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:42,258 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:42,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2019-11-15 21:35:42,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305641871] [2019-11-15 21:35:42,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-11-15 21:35:42,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:42,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-11-15 21:35:42,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2019-11-15 21:35:42,260 INFO L87 Difference]: Start difference. First operand 225 states and 231 transitions. Second operand 33 states. [2019-11-15 21:35:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:42,354 INFO L93 Difference]: Finished difference Result 228 states and 234 transitions. [2019-11-15 21:35:42,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-15 21:35:42,354 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 184 [2019-11-15 21:35:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:42,355 INFO L225 Difference]: With dead ends: 228 [2019-11-15 21:35:42,355 INFO L226 Difference]: Without dead ends: 227 [2019-11-15 21:35:42,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2019-11-15 21:35:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-11-15 21:35:42,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2019-11-15 21:35:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-15 21:35:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 231 transitions. [2019-11-15 21:35:42,360 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 231 transitions. Word has length 184 [2019-11-15 21:35:42,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:42,360 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 231 transitions. [2019-11-15 21:35:42,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-11-15 21:35:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 231 transitions. [2019-11-15 21:35:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-15 21:35:42,361 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:42,361 INFO L380 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1] [2019-11-15 21:35:42,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:42,565 INFO L410 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:42,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:42,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1525731022, now seen corresponding path program 31 times [2019-11-15 21:35:42,565 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:42,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701469259] [2019-11-15 21:35:42,565 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:42,565 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:42,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:43,096 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701469259] [2019-11-15 21:35:43,096 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003838875] [2019-11-15 21:35:43,096 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:43,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-15 21:35:43,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:43,216 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:43,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2019-11-15 21:35:43,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746645297] [2019-11-15 21:35:43,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-15 21:35:43,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:43,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-15 21:35:43,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2019-11-15 21:35:43,217 INFO L87 Difference]: Start difference. First operand 225 states and 231 transitions. Second operand 34 states. [2019-11-15 21:35:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:43,727 INFO L93 Difference]: Finished difference Result 1428 states and 1640 transitions. [2019-11-15 21:35:43,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-15 21:35:43,727 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 190 [2019-11-15 21:35:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:43,732 INFO L225 Difference]: With dead ends: 1428 [2019-11-15 21:35:43,732 INFO L226 Difference]: Without dead ends: 1427 [2019-11-15 21:35:43,733 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2019-11-15 21:35:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2019-11-15 21:35:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1359. [2019-11-15 21:35:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2019-11-15 21:35:43,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1567 transitions. [2019-11-15 21:35:43,754 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1567 transitions. Word has length 190 [2019-11-15 21:35:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:43,755 INFO L462 AbstractCegarLoop]: Abstraction has 1359 states and 1567 transitions. [2019-11-15 21:35:43,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-15 21:35:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1567 transitions. [2019-11-15 21:35:43,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-15 21:35:43,756 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:43,756 INFO L380 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1] [2019-11-15 21:35:43,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:43,959 INFO L410 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:43,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:43,959 INFO L82 PathProgramCache]: Analyzing trace with hash 394389035, now seen corresponding path program 32 times [2019-11-15 21:35:43,960 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:43,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487125570] [2019-11-15 21:35:43,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:43,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:43,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:44,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487125570] [2019-11-15 21:35:44,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084612808] [2019-11-15 21:35:44,485 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:44,562 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:44,562 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:44,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-15 21:35:44,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:44,650 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:44,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2019-11-15 21:35:44,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471198576] [2019-11-15 21:35:44,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-15 21:35:44,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:44,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-15 21:35:44,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2019-11-15 21:35:44,651 INFO L87 Difference]: Start difference. First operand 1359 states and 1567 transitions. Second operand 35 states. [2019-11-15 21:35:45,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:45,150 INFO L93 Difference]: Finished difference Result 2613 states and 3034 transitions. [2019-11-15 21:35:45,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-15 21:35:45,150 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 196 [2019-11-15 21:35:45,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:45,159 INFO L225 Difference]: With dead ends: 2613 [2019-11-15 21:35:45,159 INFO L226 Difference]: Without dead ends: 2612 [2019-11-15 21:35:45,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2019-11-15 21:35:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2019-11-15 21:35:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 1398. [2019-11-15 21:35:45,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-11-15 21:35:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1613 transitions. [2019-11-15 21:35:45,190 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1613 transitions. Word has length 196 [2019-11-15 21:35:45,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:45,191 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 1613 transitions. [2019-11-15 21:35:45,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-15 21:35:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1613 transitions. [2019-11-15 21:35:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-11-15 21:35:45,192 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:45,192 INFO L380 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 33, 1, 1] [2019-11-15 21:35:45,395 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:45,395 INFO L410 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:45,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:45,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1039319964, now seen corresponding path program 33 times [2019-11-15 21:35:45,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:45,395 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550290100] [2019-11-15 21:35:45,395 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:45,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:45,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 0 proven. 3267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:45,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550290100] [2019-11-15 21:35:45,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811449239] [2019-11-15 21:35:45,984 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:46,080 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2019-11-15 21:35:46,080 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:46,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-15 21:35:46,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 0 proven. 3267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:46,133 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:46,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2019-11-15 21:35:46,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544092719] [2019-11-15 21:35:46,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-11-15 21:35:46,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:46,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-11-15 21:35:46,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2019-11-15 21:35:46,135 INFO L87 Difference]: Start difference. First operand 1398 states and 1613 transitions. Second operand 36 states. [2019-11-15 21:35:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:46,522 INFO L93 Difference]: Finished difference Result 2693 states and 3128 transitions. [2019-11-15 21:35:46,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-11-15 21:35:46,523 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 202 [2019-11-15 21:35:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:46,533 INFO L225 Difference]: With dead ends: 2693 [2019-11-15 21:35:46,533 INFO L226 Difference]: Without dead ends: 2692 [2019-11-15 21:35:46,534 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2019-11-15 21:35:46,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2019-11-15 21:35:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 1437. [2019-11-15 21:35:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1437 states. [2019-11-15 21:35:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1659 transitions. [2019-11-15 21:35:46,562 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1659 transitions. Word has length 202 [2019-11-15 21:35:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:46,562 INFO L462 AbstractCegarLoop]: Abstraction has 1437 states and 1659 transitions. [2019-11-15 21:35:46,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-11-15 21:35:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1659 transitions. [2019-11-15 21:35:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-15 21:35:46,564 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:46,564 INFO L380 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 1, 1] [2019-11-15 21:35:46,767 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:46,767 INFO L410 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:46,768 INFO L82 PathProgramCache]: Analyzing trace with hash 931349469, now seen corresponding path program 34 times [2019-11-15 21:35:46,768 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:46,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946213606] [2019-11-15 21:35:46,768 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:46,768 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:46,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:47,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946213606] [2019-11-15 21:35:47,538 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515742594] [2019-11-15 21:35:47,538 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:47,643 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:47,643 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:47,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-15 21:35:47,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:47,698 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:47,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2019-11-15 21:35:47,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192432930] [2019-11-15 21:35:47,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-11-15 21:35:47,699 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:47,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-11-15 21:35:47,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2019-11-15 21:35:47,700 INFO L87 Difference]: Start difference. First operand 1437 states and 1659 transitions. Second operand 37 states. [2019-11-15 21:35:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:48,083 INFO L93 Difference]: Finished difference Result 2773 states and 3222 transitions. [2019-11-15 21:35:48,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-11-15 21:35:48,084 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 208 [2019-11-15 21:35:48,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:48,089 INFO L225 Difference]: With dead ends: 2773 [2019-11-15 21:35:48,090 INFO L226 Difference]: Without dead ends: 2772 [2019-11-15 21:35:48,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2019-11-15 21:35:48,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2019-11-15 21:35:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1476. [2019-11-15 21:35:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2019-11-15 21:35:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1705 transitions. [2019-11-15 21:35:48,115 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1705 transitions. Word has length 208 [2019-11-15 21:35:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:48,115 INFO L462 AbstractCegarLoop]: Abstraction has 1476 states and 1705 transitions. [2019-11-15 21:35:48,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-11-15 21:35:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1705 transitions. [2019-11-15 21:35:48,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-11-15 21:35:48,117 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:48,117 INFO L380 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 1, 1] [2019-11-15 21:35:48,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:48,320 INFO L410 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:48,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:48,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1997927274, now seen corresponding path program 35 times [2019-11-15 21:35:48,320 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:48,320 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899668479] [2019-11-15 21:35:48,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:48,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:48,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 0 proven. 3675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:49,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899668479] [2019-11-15 21:35:49,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450870670] [2019-11-15 21:35:49,121 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:49,243 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2019-11-15 21:35:49,243 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:49,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-15 21:35:49,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 0 proven. 3675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:49,302 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:49,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2019-11-15 21:35:49,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615193948] [2019-11-15 21:35:49,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-15 21:35:49,303 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:49,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-15 21:35:49,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-11-15 21:35:49,304 INFO L87 Difference]: Start difference. First operand 1476 states and 1705 transitions. Second operand 38 states. [2019-11-15 21:35:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:49,826 INFO L93 Difference]: Finished difference Result 2853 states and 3316 transitions. [2019-11-15 21:35:49,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-11-15 21:35:49,826 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 214 [2019-11-15 21:35:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:49,839 INFO L225 Difference]: With dead ends: 2853 [2019-11-15 21:35:49,839 INFO L226 Difference]: Without dead ends: 2852 [2019-11-15 21:35:49,841 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-11-15 21:35:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2019-11-15 21:35:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1515. [2019-11-15 21:35:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1515 states. [2019-11-15 21:35:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1751 transitions. [2019-11-15 21:35:49,877 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1751 transitions. Word has length 214 [2019-11-15 21:35:49,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:49,878 INFO L462 AbstractCegarLoop]: Abstraction has 1515 states and 1751 transitions. [2019-11-15 21:35:49,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-15 21:35:49,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1751 transitions. [2019-11-15 21:35:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-11-15 21:35:49,880 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:49,880 INFO L380 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 1, 1] [2019-11-15 21:35:50,083 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:50,084 INFO L410 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:50,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:50,084 INFO L82 PathProgramCache]: Analyzing trace with hash -830757233, now seen corresponding path program 36 times [2019-11-15 21:35:50,084 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:50,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589661485] [2019-11-15 21:35:50,084 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:50,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:50,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3888 backedges. 0 proven. 3888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:50,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589661485] [2019-11-15 21:35:50,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756674067] [2019-11-15 21:35:50,830 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:50,976 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2019-11-15 21:35:50,976 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:50,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 38 conjunts are in the unsatisfiable core [2019-11-15 21:35:50,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3888 backedges. 0 proven. 3888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:51,029 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:51,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2019-11-15 21:35:51,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544895888] [2019-11-15 21:35:51,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-15 21:35:51,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:51,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-15 21:35:51,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-11-15 21:35:51,031 INFO L87 Difference]: Start difference. First operand 1515 states and 1751 transitions. Second operand 39 states. [2019-11-15 21:35:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:51,446 INFO L93 Difference]: Finished difference Result 2933 states and 3410 transitions. [2019-11-15 21:35:51,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-11-15 21:35:51,447 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 220 [2019-11-15 21:35:51,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:51,452 INFO L225 Difference]: With dead ends: 2933 [2019-11-15 21:35:51,452 INFO L226 Difference]: Without dead ends: 2932 [2019-11-15 21:35:51,453 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-11-15 21:35:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2019-11-15 21:35:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1554. [2019-11-15 21:35:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1554 states. [2019-11-15 21:35:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 1797 transitions. [2019-11-15 21:35:51,484 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 1797 transitions. Word has length 220 [2019-11-15 21:35:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:51,484 INFO L462 AbstractCegarLoop]: Abstraction has 1554 states and 1797 transitions. [2019-11-15 21:35:51,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-15 21:35:51,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 1797 transitions. [2019-11-15 21:35:51,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-11-15 21:35:51,486 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:51,486 INFO L380 BasicCegarLoop]: trace histogram [37, 36, 36, 31, 31, 31, 6, 6, 6, 1, 1] [2019-11-15 21:35:51,689 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:51,689 INFO L410 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:51,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:51,689 INFO L82 PathProgramCache]: Analyzing trace with hash -337512172, now seen corresponding path program 10 times [2019-11-15 21:35:51,689 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:51,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527360567] [2019-11-15 21:35:51,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:51,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:51,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3588 backedges. 0 proven. 3588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:52,355 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527360567] [2019-11-15 21:35:52,355 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361079974] [2019-11-15 21:35:52,355 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:52,444 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:52,444 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:52,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-15 21:35:52,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:52,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3588 backedges. 661 proven. 2852 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-11-15 21:35:52,491 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:52,491 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 33] total 38 [2019-11-15 21:35:52,491 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515039042] [2019-11-15 21:35:52,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-15 21:35:52,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:52,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-15 21:35:52,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-11-15 21:35:52,492 INFO L87 Difference]: Start difference. First operand 1554 states and 1797 transitions. Second operand 39 states. [2019-11-15 21:35:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:52,612 INFO L93 Difference]: Finished difference Result 1636 states and 1891 transitions. [2019-11-15 21:35:52,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-11-15 21:35:52,613 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 222 [2019-11-15 21:35:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:52,614 INFO L225 Difference]: With dead ends: 1636 [2019-11-15 21:35:52,614 INFO L226 Difference]: Without dead ends: 265 [2019-11-15 21:35:52,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-11-15 21:35:52,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-11-15 21:35:52,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 261. [2019-11-15 21:35:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-11-15 21:35:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 267 transitions. [2019-11-15 21:35:52,619 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 267 transitions. Word has length 222 [2019-11-15 21:35:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:52,619 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 267 transitions. [2019-11-15 21:35:52,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-15 21:35:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 267 transitions. [2019-11-15 21:35:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-15 21:35:52,620 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:52,621 INFO L380 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 37, 37, 1, 1] [2019-11-15 21:35:52,823 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:52,824 INFO L410 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:52,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:52,824 INFO L82 PathProgramCache]: Analyzing trace with hash -257547832, now seen corresponding path program 37 times [2019-11-15 21:35:52,824 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:52,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899300217] [2019-11-15 21:35:52,825 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:52,825 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:52,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 0 proven. 4107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:53,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899300217] [2019-11-15 21:35:53,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981912140] [2019-11-15 21:35:53,638 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:53,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-15 21:35:53,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 0 proven. 4107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:53,793 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:53,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2019-11-15 21:35:53,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940300350] [2019-11-15 21:35:53,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-11-15 21:35:53,794 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:53,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-11-15 21:35:53,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2019-11-15 21:35:53,795 INFO L87 Difference]: Start difference. First operand 261 states and 267 transitions. Second operand 40 states. [2019-11-15 21:35:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:54,378 INFO L93 Difference]: Finished difference Result 1710 states and 1964 transitions. [2019-11-15 21:35:54,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-11-15 21:35:54,379 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 226 [2019-11-15 21:35:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:54,381 INFO L225 Difference]: With dead ends: 1710 [2019-11-15 21:35:54,381 INFO L226 Difference]: Without dead ends: 1709 [2019-11-15 21:35:54,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2019-11-15 21:35:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2019-11-15 21:35:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1629. [2019-11-15 21:35:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2019-11-15 21:35:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 1879 transitions. [2019-11-15 21:35:54,407 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 1879 transitions. Word has length 226 [2019-11-15 21:35:54,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:54,408 INFO L462 AbstractCegarLoop]: Abstraction has 1629 states and 1879 transitions. [2019-11-15 21:35:54,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-11-15 21:35:54,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 1879 transitions. [2019-11-15 21:35:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-11-15 21:35:54,409 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:54,409 INFO L380 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 1, 1] [2019-11-15 21:35:54,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:54,612 INFO L410 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:54,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:54,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1324642751, now seen corresponding path program 38 times [2019-11-15 21:35:54,613 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:54,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980374978] [2019-11-15 21:35:54,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:54,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:54,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:55,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980374978] [2019-11-15 21:35:55,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012952953] [2019-11-15 21:35:55,408 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:55,509 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:35:55,510 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:55,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-15 21:35:55,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:55,592 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:55,592 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2019-11-15 21:35:55,592 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491511585] [2019-11-15 21:35:55,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-11-15 21:35:55,593 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:55,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-11-15 21:35:55,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2019-11-15 21:35:55,594 INFO L87 Difference]: Start difference. First operand 1629 states and 1879 transitions. Second operand 41 states. [2019-11-15 21:35:56,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:56,177 INFO L93 Difference]: Finished difference Result 3129 states and 3634 transitions. [2019-11-15 21:35:56,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-11-15 21:35:56,178 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 232 [2019-11-15 21:35:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:56,184 INFO L225 Difference]: With dead ends: 3129 [2019-11-15 21:35:56,184 INFO L226 Difference]: Without dead ends: 3128 [2019-11-15 21:35:56,185 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2019-11-15 21:35:56,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2019-11-15 21:35:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 1668. [2019-11-15 21:35:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2019-11-15 21:35:56,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 1925 transitions. [2019-11-15 21:35:56,220 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 1925 transitions. Word has length 232 [2019-11-15 21:35:56,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:56,220 INFO L462 AbstractCegarLoop]: Abstraction has 1668 states and 1925 transitions. [2019-11-15 21:35:56,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-11-15 21:35:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 1925 transitions. [2019-11-15 21:35:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-11-15 21:35:56,221 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:56,222 INFO L380 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 1, 1] [2019-11-15 21:35:56,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:56,425 INFO L410 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:56,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:56,425 INFO L82 PathProgramCache]: Analyzing trace with hash -209585158, now seen corresponding path program 39 times [2019-11-15 21:35:56,425 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:56,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397977369] [2019-11-15 21:35:56,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:56,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:56,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:57,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397977369] [2019-11-15 21:35:57,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132638650] [2019-11-15 21:35:57,175 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:57,294 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2019-11-15 21:35:57,294 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:57,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-15 21:35:57,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:57,356 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:57,356 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2019-11-15 21:35:57,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111364714] [2019-11-15 21:35:57,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-15 21:35:57,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:57,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-15 21:35:57,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 21:35:57,358 INFO L87 Difference]: Start difference. First operand 1668 states and 1925 transitions. Second operand 42 states. [2019-11-15 21:35:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:57,904 INFO L93 Difference]: Finished difference Result 3209 states and 3728 transitions. [2019-11-15 21:35:57,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-15 21:35:57,917 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 238 [2019-11-15 21:35:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:57,920 INFO L225 Difference]: With dead ends: 3209 [2019-11-15 21:35:57,920 INFO L226 Difference]: Without dead ends: 3208 [2019-11-15 21:35:57,920 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 21:35:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-15 21:35:57,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 1707. [2019-11-15 21:35:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-11-15 21:35:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1971 transitions. [2019-11-15 21:35:57,955 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1971 transitions. Word has length 238 [2019-11-15 21:35:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:57,955 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1971 transitions. [2019-11-15 21:35:57,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-15 21:35:57,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1971 transitions. [2019-11-15 21:35:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-15 21:35:57,956 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:57,957 INFO L380 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 1, 1] [2019-11-15 21:35:58,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:58,160 INFO L410 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:35:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:35:58,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1192458995, now seen corresponding path program 40 times [2019-11-15 21:35:58,161 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:35:58,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122995406] [2019-11-15 21:35:58,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:58,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:35:58,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:35:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:35:59,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 0 proven. 4800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:59,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122995406] [2019-11-15 21:35:59,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454329276] [2019-11-15 21:35:59,154 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:35:59,288 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:35:59,289 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:35:59,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 42 conjunts are in the unsatisfiable core [2019-11-15 21:35:59,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:35:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 0 proven. 4800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:35:59,361 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:35:59,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2019-11-15 21:35:59,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393650107] [2019-11-15 21:35:59,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-15 21:35:59,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:35:59,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-15 21:35:59,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2019-11-15 21:35:59,363 INFO L87 Difference]: Start difference. First operand 1707 states and 1971 transitions. Second operand 43 states. [2019-11-15 21:35:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:35:59,830 INFO L93 Difference]: Finished difference Result 3289 states and 3822 transitions. [2019-11-15 21:35:59,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-11-15 21:35:59,833 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 244 [2019-11-15 21:35:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:35:59,835 INFO L225 Difference]: With dead ends: 3289 [2019-11-15 21:35:59,835 INFO L226 Difference]: Without dead ends: 3288 [2019-11-15 21:35:59,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2019-11-15 21:35:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2019-11-15 21:35:59,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 1746. [2019-11-15 21:35:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1746 states. [2019-11-15 21:35:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2017 transitions. [2019-11-15 21:35:59,863 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2017 transitions. Word has length 244 [2019-11-15 21:35:59,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:35:59,863 INFO L462 AbstractCegarLoop]: Abstraction has 1746 states and 2017 transitions. [2019-11-15 21:35:59,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-15 21:35:59,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2017 transitions. [2019-11-15 21:35:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-11-15 21:35:59,864 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:35:59,865 INFO L380 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 41, 41, 1, 1] [2019-11-15 21:36:00,067 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:00,069 INFO L410 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:00,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1359078612, now seen corresponding path program 41 times [2019-11-15 21:36:00,069 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:00,069 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605943358] [2019-11-15 21:36:00,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:00,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:00,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 0 proven. 5043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:01,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605943358] [2019-11-15 21:36:01,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519353375] [2019-11-15 21:36:01,152 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:01,289 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2019-11-15 21:36:01,290 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:01,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 43 conjunts are in the unsatisfiable core [2019-11-15 21:36:01,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 0 proven. 5043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:01,347 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:01,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2019-11-15 21:36:01,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508110328] [2019-11-15 21:36:01,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-11-15 21:36:01,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:01,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-11-15 21:36:01,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2019-11-15 21:36:01,348 INFO L87 Difference]: Start difference. First operand 1746 states and 2017 transitions. Second operand 44 states. [2019-11-15 21:36:01,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:01,872 INFO L93 Difference]: Finished difference Result 3369 states and 3916 transitions. [2019-11-15 21:36:01,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-15 21:36:01,872 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 250 [2019-11-15 21:36:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:01,874 INFO L225 Difference]: With dead ends: 3369 [2019-11-15 21:36:01,875 INFO L226 Difference]: Without dead ends: 3368 [2019-11-15 21:36:01,875 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2019-11-15 21:36:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2019-11-15 21:36:01,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 1785. [2019-11-15 21:36:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1785 states. [2019-11-15 21:36:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2063 transitions. [2019-11-15 21:36:01,899 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2063 transitions. Word has length 250 [2019-11-15 21:36:01,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:01,900 INFO L462 AbstractCegarLoop]: Abstraction has 1785 states and 2063 transitions. [2019-11-15 21:36:01,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-11-15 21:36:01,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2063 transitions. [2019-11-15 21:36:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-11-15 21:36:01,901 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:01,901 INFO L380 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 1, 1] [2019-11-15 21:36:02,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:02,104 INFO L410 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:02,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:02,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1414271835, now seen corresponding path program 42 times [2019-11-15 21:36:02,105 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:02,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295605195] [2019-11-15 21:36:02,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:02,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:02,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5292 backedges. 0 proven. 5292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:03,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295605195] [2019-11-15 21:36:03,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315465546] [2019-11-15 21:36:03,164 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:03,298 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2019-11-15 21:36:03,298 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:03,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 44 conjunts are in the unsatisfiable core [2019-11-15 21:36:03,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5292 backedges. 0 proven. 5292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:03,377 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:03,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2019-11-15 21:36:03,377 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573247373] [2019-11-15 21:36:03,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-11-15 21:36:03,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:03,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-11-15 21:36:03,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-11-15 21:36:03,379 INFO L87 Difference]: Start difference. First operand 1785 states and 2063 transitions. Second operand 45 states. [2019-11-15 21:36:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:03,919 INFO L93 Difference]: Finished difference Result 3449 states and 4010 transitions. [2019-11-15 21:36:03,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-11-15 21:36:03,920 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 256 [2019-11-15 21:36:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:03,923 INFO L225 Difference]: With dead ends: 3449 [2019-11-15 21:36:03,923 INFO L226 Difference]: Without dead ends: 3448 [2019-11-15 21:36:03,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-11-15 21:36:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2019-11-15 21:36:03,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 1824. [2019-11-15 21:36:03,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1824 states. [2019-11-15 21:36:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2109 transitions. [2019-11-15 21:36:03,954 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2109 transitions. Word has length 256 [2019-11-15 21:36:03,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:03,954 INFO L462 AbstractCegarLoop]: Abstraction has 1824 states and 2109 transitions. [2019-11-15 21:36:03,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-11-15 21:36:03,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2109 transitions. [2019-11-15 21:36:03,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2019-11-15 21:36:03,956 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:03,956 INFO L380 BasicCegarLoop]: trace histogram [43, 42, 42, 37, 37, 37, 6, 6, 6, 1, 1] [2019-11-15 21:36:04,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:04,160 INFO L410 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:04,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:04,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1545671082, now seen corresponding path program 11 times [2019-11-15 21:36:04,160 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:04,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754661541] [2019-11-15 21:36:04,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:04,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:04,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4932 backedges. 0 proven. 4932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:05,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754661541] [2019-11-15 21:36:05,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10696258] [2019-11-15 21:36:05,022 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:05,170 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 39 check-sat command(s) [2019-11-15 21:36:05,170 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:05,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-15 21:36:05,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4932 backedges. 787 proven. 4070 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-11-15 21:36:05,227 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:05,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 39] total 44 [2019-11-15 21:36:05,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633962077] [2019-11-15 21:36:05,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-11-15 21:36:05,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:05,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-11-15 21:36:05,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-11-15 21:36:05,228 INFO L87 Difference]: Start difference. First operand 1824 states and 2109 transitions. Second operand 45 states. [2019-11-15 21:36:05,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:05,407 INFO L93 Difference]: Finished difference Result 1906 states and 2203 transitions. [2019-11-15 21:36:05,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-11-15 21:36:05,407 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 258 [2019-11-15 21:36:05,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:05,408 INFO L225 Difference]: With dead ends: 1906 [2019-11-15 21:36:05,408 INFO L226 Difference]: Without dead ends: 301 [2019-11-15 21:36:05,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-11-15 21:36:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-11-15 21:36:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2019-11-15 21:36:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2019-11-15 21:36:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 303 transitions. [2019-11-15 21:36:05,414 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 303 transitions. Word has length 258 [2019-11-15 21:36:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:05,414 INFO L462 AbstractCegarLoop]: Abstraction has 297 states and 303 transitions. [2019-11-15 21:36:05,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-11-15 21:36:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 303 transitions. [2019-11-15 21:36:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-11-15 21:36:05,415 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:05,415 INFO L380 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 1, 1] [2019-11-15 21:36:05,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:05,615 INFO L410 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2082799778, now seen corresponding path program 43 times [2019-11-15 21:36:05,616 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:05,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169443201] [2019-11-15 21:36:05,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:05,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:05,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 0 proven. 5547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:06,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169443201] [2019-11-15 21:36:06,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481169394] [2019-11-15 21:36:06,462 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:06,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-15 21:36:06,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:06,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 0 proven. 5547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:06,649 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:06,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2019-11-15 21:36:06,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411255559] [2019-11-15 21:36:06,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-11-15 21:36:06,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:06,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-11-15 21:36:06,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2019-11-15 21:36:06,651 INFO L87 Difference]: Start difference. First operand 297 states and 303 transitions. Second operand 46 states. [2019-11-15 21:36:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:07,208 INFO L93 Difference]: Finished difference Result 1992 states and 2288 transitions. [2019-11-15 21:36:07,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-11-15 21:36:07,208 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 262 [2019-11-15 21:36:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:07,209 INFO L225 Difference]: With dead ends: 1992 [2019-11-15 21:36:07,209 INFO L226 Difference]: Without dead ends: 1991 [2019-11-15 21:36:07,210 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2019-11-15 21:36:07,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-11-15 21:36:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1899. [2019-11-15 21:36:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1899 states. [2019-11-15 21:36:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2191 transitions. [2019-11-15 21:36:07,249 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2191 transitions. Word has length 262 [2019-11-15 21:36:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:07,249 INFO L462 AbstractCegarLoop]: Abstraction has 1899 states and 2191 transitions. [2019-11-15 21:36:07,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-11-15 21:36:07,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2191 transitions. [2019-11-15 21:36:07,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-11-15 21:36:07,250 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:07,250 INFO L380 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 1, 1] [2019-11-15 21:36:07,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:07,451 INFO L410 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash -850566313, now seen corresponding path program 44 times [2019-11-15 21:36:07,451 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:07,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458436495] [2019-11-15 21:36:07,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:07,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:07,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 0 proven. 5808 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:08,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458436495] [2019-11-15 21:36:08,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773310059] [2019-11-15 21:36:08,377 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:08,497 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:36:08,497 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:08,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-15 21:36:08,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 0 proven. 5808 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:08,582 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:08,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2019-11-15 21:36:08,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094999220] [2019-11-15 21:36:08,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-11-15 21:36:08,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:08,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-11-15 21:36:08,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2019-11-15 21:36:08,584 INFO L87 Difference]: Start difference. First operand 1899 states and 2191 transitions. Second operand 47 states. [2019-11-15 21:36:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:09,082 INFO L93 Difference]: Finished difference Result 3645 states and 4234 transitions. [2019-11-15 21:36:09,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-11-15 21:36:09,083 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 268 [2019-11-15 21:36:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:09,085 INFO L225 Difference]: With dead ends: 3645 [2019-11-15 21:36:09,085 INFO L226 Difference]: Without dead ends: 3644 [2019-11-15 21:36:09,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2019-11-15 21:36:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2019-11-15 21:36:09,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 1938. [2019-11-15 21:36:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1938 states. [2019-11-15 21:36:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2237 transitions. [2019-11-15 21:36:09,112 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2237 transitions. Word has length 268 [2019-11-15 21:36:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:09,113 INFO L462 AbstractCegarLoop]: Abstraction has 1938 states and 2237 transitions. [2019-11-15 21:36:09,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-11-15 21:36:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2237 transitions. [2019-11-15 21:36:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-11-15 21:36:09,114 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:09,114 INFO L380 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 45, 45, 1, 1] [2019-11-15 21:36:09,317 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:09,317 INFO L410 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:09,318 INFO L82 PathProgramCache]: Analyzing trace with hash 907618448, now seen corresponding path program 45 times [2019-11-15 21:36:09,318 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:09,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017902165] [2019-11-15 21:36:09,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:09,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:09,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6075 backedges. 0 proven. 6075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:10,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017902165] [2019-11-15 21:36:10,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180750988] [2019-11-15 21:36:10,280 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:10,424 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2019-11-15 21:36:10,424 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:10,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 47 conjunts are in the unsatisfiable core [2019-11-15 21:36:10,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6075 backedges. 0 proven. 6075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:10,514 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:10,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2019-11-15 21:36:10,514 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505813053] [2019-11-15 21:36:10,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-11-15 21:36:10,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:10,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-11-15 21:36:10,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2019-11-15 21:36:10,516 INFO L87 Difference]: Start difference. First operand 1938 states and 2237 transitions. Second operand 48 states. [2019-11-15 21:36:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:11,070 INFO L93 Difference]: Finished difference Result 3725 states and 4328 transitions. [2019-11-15 21:36:11,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-11-15 21:36:11,071 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 274 [2019-11-15 21:36:11,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:11,073 INFO L225 Difference]: With dead ends: 3725 [2019-11-15 21:36:11,073 INFO L226 Difference]: Without dead ends: 3724 [2019-11-15 21:36:11,074 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2019-11-15 21:36:11,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2019-11-15 21:36:11,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 1977. [2019-11-15 21:36:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1977 states. [2019-11-15 21:36:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 2283 transitions. [2019-11-15 21:36:11,101 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 2283 transitions. Word has length 274 [2019-11-15 21:36:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:11,101 INFO L462 AbstractCegarLoop]: Abstraction has 1977 states and 2283 transitions. [2019-11-15 21:36:11,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-11-15 21:36:11,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 2283 transitions. [2019-11-15 21:36:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-11-15 21:36:11,103 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:11,103 INFO L380 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1] [2019-11-15 21:36:11,306 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:11,307 INFO L410 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1920966903, now seen corresponding path program 46 times [2019-11-15 21:36:11,307 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:11,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959526176] [2019-11-15 21:36:11,307 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:11,307 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:11,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:12,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959526176] [2019-11-15 21:36:12,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485458856] [2019-11-15 21:36:12,302 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:12,425 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:36:12,425 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:12,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 48 conjunts are in the unsatisfiable core [2019-11-15 21:36:12,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:12,516 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:12,517 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2019-11-15 21:36:12,517 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869312739] [2019-11-15 21:36:12,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-11-15 21:36:12,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:12,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-11-15 21:36:12,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2019-11-15 21:36:12,518 INFO L87 Difference]: Start difference. First operand 1977 states and 2283 transitions. Second operand 49 states. [2019-11-15 21:36:13,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:13,040 INFO L93 Difference]: Finished difference Result 3805 states and 4422 transitions. [2019-11-15 21:36:13,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-11-15 21:36:13,040 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 280 [2019-11-15 21:36:13,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:13,043 INFO L225 Difference]: With dead ends: 3805 [2019-11-15 21:36:13,043 INFO L226 Difference]: Without dead ends: 3804 [2019-11-15 21:36:13,044 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2019-11-15 21:36:13,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2019-11-15 21:36:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 2016. [2019-11-15 21:36:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2019-11-15 21:36:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2329 transitions. [2019-11-15 21:36:13,072 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2329 transitions. Word has length 280 [2019-11-15 21:36:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:13,072 INFO L462 AbstractCegarLoop]: Abstraction has 2016 states and 2329 transitions. [2019-11-15 21:36:13,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-11-15 21:36:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2329 transitions. [2019-11-15 21:36:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-11-15 21:36:13,073 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:13,073 INFO L380 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 1, 1] [2019-11-15 21:36:13,274 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:13,274 INFO L410 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:13,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:13,274 INFO L82 PathProgramCache]: Analyzing trace with hash 217650882, now seen corresponding path program 47 times [2019-11-15 21:36:13,274 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:13,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974475015] [2019-11-15 21:36:13,274 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:13,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:13,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 0 proven. 6627 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:14,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974475015] [2019-11-15 21:36:14,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313033564] [2019-11-15 21:36:14,293 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:14,449 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2019-11-15 21:36:14,449 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:14,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 49 conjunts are in the unsatisfiable core [2019-11-15 21:36:14,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 0 proven. 6627 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:14,523 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:14,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2019-11-15 21:36:14,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588723889] [2019-11-15 21:36:14,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 50 states [2019-11-15 21:36:14,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:14,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2019-11-15 21:36:14,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2019-11-15 21:36:14,525 INFO L87 Difference]: Start difference. First operand 2016 states and 2329 transitions. Second operand 50 states. [2019-11-15 21:36:15,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:15,050 INFO L93 Difference]: Finished difference Result 3885 states and 4516 transitions. [2019-11-15 21:36:15,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-11-15 21:36:15,050 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 286 [2019-11-15 21:36:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:15,053 INFO L225 Difference]: With dead ends: 3885 [2019-11-15 21:36:15,053 INFO L226 Difference]: Without dead ends: 3884 [2019-11-15 21:36:15,054 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2019-11-15 21:36:15,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3884 states. [2019-11-15 21:36:15,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3884 to 2055. [2019-11-15 21:36:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2055 states. [2019-11-15 21:36:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2375 transitions. [2019-11-15 21:36:15,083 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2375 transitions. Word has length 286 [2019-11-15 21:36:15,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:15,084 INFO L462 AbstractCegarLoop]: Abstraction has 2055 states and 2375 transitions. [2019-11-15 21:36:15,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 50 states. [2019-11-15 21:36:15,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2375 transitions. [2019-11-15 21:36:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2019-11-15 21:36:15,085 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:15,085 INFO L380 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 48, 48, 1, 1] [2019-11-15 21:36:15,285 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:15,286 INFO L410 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:15,286 INFO L82 PathProgramCache]: Analyzing trace with hash -517120069, now seen corresponding path program 48 times [2019-11-15 21:36:15,286 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:15,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664554184] [2019-11-15 21:36:15,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:15,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:15,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6912 backedges. 0 proven. 6912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:16,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664554184] [2019-11-15 21:36:16,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023972480] [2019-11-15 21:36:16,357 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:16,513 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2019-11-15 21:36:16,513 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:16,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 50 conjunts are in the unsatisfiable core [2019-11-15 21:36:16,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6912 backedges. 0 proven. 6912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:16,611 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:16,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2019-11-15 21:36:16,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491715025] [2019-11-15 21:36:16,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-11-15 21:36:16,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:16,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-11-15 21:36:16,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2019-11-15 21:36:16,612 INFO L87 Difference]: Start difference. First operand 2055 states and 2375 transitions. Second operand 51 states. [2019-11-15 21:36:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:17,292 INFO L93 Difference]: Finished difference Result 3965 states and 4610 transitions. [2019-11-15 21:36:17,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-11-15 21:36:17,292 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 292 [2019-11-15 21:36:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:17,296 INFO L225 Difference]: With dead ends: 3965 [2019-11-15 21:36:17,296 INFO L226 Difference]: Without dead ends: 3964 [2019-11-15 21:36:17,297 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2019-11-15 21:36:17,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3964 states. [2019-11-15 21:36:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3964 to 2094. [2019-11-15 21:36:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2094 states. [2019-11-15 21:36:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2421 transitions. [2019-11-15 21:36:17,327 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2421 transitions. Word has length 292 [2019-11-15 21:36:17,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:17,327 INFO L462 AbstractCegarLoop]: Abstraction has 2094 states and 2421 transitions. [2019-11-15 21:36:17,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-11-15 21:36:17,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2421 transitions. [2019-11-15 21:36:17,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2019-11-15 21:36:17,329 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:17,329 INFO L380 BasicCegarLoop]: trace histogram [49, 48, 48, 43, 43, 43, 6, 6, 6, 1, 1] [2019-11-15 21:36:17,530 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:17,530 INFO L410 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:17,530 INFO L82 PathProgramCache]: Analyzing trace with hash 420091712, now seen corresponding path program 12 times [2019-11-15 21:36:17,530 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:17,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418564012] [2019-11-15 21:36:17,531 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:17,531 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:17,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6492 backedges. 0 proven. 6492 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:18,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418564012] [2019-11-15 21:36:18,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602498516] [2019-11-15 21:36:18,595 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:18,704 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2019-11-15 21:36:18,705 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:18,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:36:18,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6492 backedges. 1146 proven. 96 refuted. 0 times theorem prover too weak. 5250 trivial. 0 not checked. [2019-11-15 21:36:19,041 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:19,041 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 8] total 57 [2019-11-15 21:36:19,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531681790] [2019-11-15 21:36:19,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2019-11-15 21:36:19,043 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:19,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2019-11-15 21:36:19,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2019-11-15 21:36:19,044 INFO L87 Difference]: Start difference. First operand 2094 states and 2421 transitions. Second operand 58 states. [2019-11-15 21:36:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:19,309 INFO L93 Difference]: Finished difference Result 2185 states and 2527 transitions. [2019-11-15 21:36:19,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-11-15 21:36:19,309 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 294 [2019-11-15 21:36:19,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:19,309 INFO L225 Difference]: With dead ends: 2185 [2019-11-15 21:36:19,310 INFO L226 Difference]: Without dead ends: 346 [2019-11-15 21:36:19,311 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2019-11-15 21:36:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2019-11-15 21:36:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 345. [2019-11-15 21:36:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-11-15 21:36:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 352 transitions. [2019-11-15 21:36:19,316 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 352 transitions. Word has length 294 [2019-11-15 21:36:19,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:19,317 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 352 transitions. [2019-11-15 21:36:19,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 58 states. [2019-11-15 21:36:19,317 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 352 transitions. [2019-11-15 21:36:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-11-15 21:36:19,318 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:19,319 INFO L380 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 1, 1] [2019-11-15 21:36:19,521 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:19,521 INFO L410 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:19,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:19,521 INFO L82 PathProgramCache]: Analyzing trace with hash -218412556, now seen corresponding path program 49 times [2019-11-15 21:36:19,521 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:19,522 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088876554] [2019-11-15 21:36:19,522 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:19,522 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:19,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 7203 backedges. 0 proven. 7203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:20,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088876554] [2019-11-15 21:36:20,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293703304] [2019-11-15 21:36:20,618 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:20,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 51 conjunts are in the unsatisfiable core [2019-11-15 21:36:20,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7203 backedges. 0 proven. 7203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:20,826 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:20,826 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2019-11-15 21:36:20,826 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756908787] [2019-11-15 21:36:20,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-11-15 21:36:20,827 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:20,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-11-15 21:36:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2019-11-15 21:36:20,828 INFO L87 Difference]: Start difference. First operand 345 states and 352 transitions. Second operand 52 states. [2019-11-15 21:36:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:21,006 INFO L93 Difference]: Finished difference Result 348 states and 355 transitions. [2019-11-15 21:36:21,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-11-15 21:36:21,006 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 298 [2019-11-15 21:36:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:21,006 INFO L225 Difference]: With dead ends: 348 [2019-11-15 21:36:21,007 INFO L226 Difference]: Without dead ends: 347 [2019-11-15 21:36:21,007 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2019-11-15 21:36:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-11-15 21:36:21,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2019-11-15 21:36:21,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-11-15 21:36:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 352 transitions. [2019-11-15 21:36:21,011 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 352 transitions. Word has length 298 [2019-11-15 21:36:21,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:21,011 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 352 transitions. [2019-11-15 21:36:21,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-11-15 21:36:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 352 transitions. [2019-11-15 21:36:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-11-15 21:36:21,013 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:21,014 INFO L380 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 1, 1] [2019-11-15 21:36:21,214 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:21,215 INFO L410 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:21,215 INFO L82 PathProgramCache]: Analyzing trace with hash -260774547, now seen corresponding path program 50 times [2019-11-15 21:36:21,215 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:21,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971639402] [2019-11-15 21:36:21,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:21,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:21,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 0 proven. 7500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:22,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971639402] [2019-11-15 21:36:22,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412247647] [2019-11-15 21:36:22,423 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:22,556 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:36:22,556 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:22,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 52 conjunts are in the unsatisfiable core [2019-11-15 21:36:22,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 0 proven. 7500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:22,635 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:22,635 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2019-11-15 21:36:22,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152661720] [2019-11-15 21:36:22,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-11-15 21:36:22,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:22,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-11-15 21:36:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2019-11-15 21:36:22,636 INFO L87 Difference]: Start difference. First operand 345 states and 352 transitions. Second operand 53 states. [2019-11-15 21:36:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:23,397 INFO L93 Difference]: Finished difference Result 2595 states and 2986 transitions. [2019-11-15 21:36:23,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-11-15 21:36:23,397 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 304 [2019-11-15 21:36:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:23,399 INFO L225 Difference]: With dead ends: 2595 [2019-11-15 21:36:23,399 INFO L226 Difference]: Without dead ends: 2594 [2019-11-15 21:36:23,400 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2019-11-15 21:36:23,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2019-11-15 21:36:23,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 2487. [2019-11-15 21:36:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2487 states. [2019-11-15 21:36:23,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 2873 transitions. [2019-11-15 21:36:23,423 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 2873 transitions. Word has length 304 [2019-11-15 21:36:23,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:23,423 INFO L462 AbstractCegarLoop]: Abstraction has 2487 states and 2873 transitions. [2019-11-15 21:36:23,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-11-15 21:36:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 2873 transitions. [2019-11-15 21:36:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-11-15 21:36:23,424 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:23,424 INFO L380 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 51, 51, 1, 1] [2019-11-15 21:36:23,625 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:23,625 INFO L410 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:23,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1780465114, now seen corresponding path program 51 times [2019-11-15 21:36:23,625 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:23,625 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138794791] [2019-11-15 21:36:23,625 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:23,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:23,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 7803 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 7752 trivial. 0 not checked. [2019-11-15 21:36:23,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138794791] [2019-11-15 21:36:23,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550170303] [2019-11-15 21:36:23,862 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:24,070 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2019-11-15 21:36:24,070 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:24,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 53 conjunts are in the unsatisfiable core [2019-11-15 21:36:24,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 7803 backedges. 0 proven. 7803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:25,476 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:25,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 52] total 54 [2019-11-15 21:36:25,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669423353] [2019-11-15 21:36:25,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2019-11-15 21:36:25,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:25,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2019-11-15 21:36:25,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1436, Invalid=1644, Unknown=0, NotChecked=0, Total=3080 [2019-11-15 21:36:25,478 INFO L87 Difference]: Start difference. First operand 2487 states and 2873 transitions. Second operand 56 states. [2019-11-15 21:36:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:29,711 INFO L93 Difference]: Finished difference Result 4746 states and 5516 transitions. [2019-11-15 21:36:29,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2019-11-15 21:36:29,712 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 310 [2019-11-15 21:36:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:29,715 INFO L225 Difference]: With dead ends: 4746 [2019-11-15 21:36:29,715 INFO L226 Difference]: Without dead ends: 4745 [2019-11-15 21:36:29,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6729 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=8479, Invalid=16643, Unknown=0, NotChecked=0, Total=25122 [2019-11-15 21:36:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4745 states. [2019-11-15 21:36:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4745 to 343. [2019-11-15 21:36:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-11-15 21:36:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 350 transitions. [2019-11-15 21:36:29,736 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 350 transitions. Word has length 310 [2019-11-15 21:36:29,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:29,736 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 350 transitions. [2019-11-15 21:36:29,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 56 states. [2019-11-15 21:36:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 350 transitions. [2019-11-15 21:36:29,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2019-11-15 21:36:29,737 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:29,737 INFO L380 BasicCegarLoop]: trace histogram [57, 56, 56, 50, 50, 50, 7, 7, 7, 1, 1] [2019-11-15 21:36:29,938 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:29,938 INFO L410 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:29,938 INFO L82 PathProgramCache]: Analyzing trace with hash -826583422, now seen corresponding path program 13 times [2019-11-15 21:36:29,938 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:29,938 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440504496] [2019-11-15 21:36:29,938 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:29,939 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:29,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:31,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8820 backedges. 0 proven. 8820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:31,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440504496] [2019-11-15 21:36:31,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218726484] [2019-11-15 21:36:31,458 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:31,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 52 conjunts are in the unsatisfiable core [2019-11-15 21:36:31,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8820 backedges. 1262 proven. 7450 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-11-15 21:36:31,728 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:31,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 52] total 58 [2019-11-15 21:36:31,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597427353] [2019-11-15 21:36:31,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-11-15 21:36:31,729 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:31,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-11-15 21:36:31,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2019-11-15 21:36:31,730 INFO L87 Difference]: Start difference. First operand 343 states and 350 transitions. Second operand 59 states. [2019-11-15 21:36:31,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:31,988 INFO L93 Difference]: Finished difference Result 396 states and 411 transitions. [2019-11-15 21:36:31,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-11-15 21:36:31,988 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 342 [2019-11-15 21:36:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:31,989 INFO L225 Difference]: With dead ends: 396 [2019-11-15 21:36:31,989 INFO L226 Difference]: Without dead ends: 350 [2019-11-15 21:36:31,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2019-11-15 21:36:31,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-15 21:36:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2019-11-15 21:36:31,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-15 21:36:31,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 356 transitions. [2019-11-15 21:36:31,996 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 356 transitions. Word has length 342 [2019-11-15 21:36:31,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:31,996 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 356 transitions. [2019-11-15 21:36:31,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-11-15 21:36:31,996 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 356 transitions. [2019-11-15 21:36:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2019-11-15 21:36:31,997 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:31,997 INFO L380 BasicCegarLoop]: trace histogram [58, 57, 57, 51, 51, 51, 7, 7, 7, 1, 1] [2019-11-15 21:36:32,198 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:32,198 INFO L410 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:32,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:32,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1502322565, now seen corresponding path program 14 times [2019-11-15 21:36:32,198 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:32,198 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778495312] [2019-11-15 21:36:32,198 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:32,199 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:32,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:33,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9147 backedges. 0 proven. 9147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:33,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778495312] [2019-11-15 21:36:33,791 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862097588] [2019-11-15 21:36:33,791 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:33,948 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:36:33,948 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:33,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 59 conjunts are in the unsatisfiable core [2019-11-15 21:36:33,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 9147 backedges. 114 proven. 9033 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:37,233 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:37,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 59] total 109 [2019-11-15 21:36:37,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090039965] [2019-11-15 21:36:37,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 110 states [2019-11-15 21:36:37,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:37,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2019-11-15 21:36:37,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2019-11-15 21:36:37,235 INFO L87 Difference]: Start difference. First operand 349 states and 356 transitions. Second operand 110 states. [2019-11-15 21:36:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:36:38,044 INFO L93 Difference]: Finished difference Result 657 states and 765 transitions. [2019-11-15 21:36:38,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2019-11-15 21:36:38,045 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 348 [2019-11-15 21:36:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:36:38,046 INFO L225 Difference]: With dead ends: 657 [2019-11-15 21:36:38,046 INFO L226 Difference]: Without dead ends: 656 [2019-11-15 21:36:38,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2019-11-15 21:36:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2019-11-15 21:36:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 655. [2019-11-15 21:36:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-11-15 21:36:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 713 transitions. [2019-11-15 21:36:38,066 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 713 transitions. Word has length 348 [2019-11-15 21:36:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:36:38,066 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 713 transitions. [2019-11-15 21:36:38,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 110 states. [2019-11-15 21:36:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 713 transitions. [2019-11-15 21:36:38,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2019-11-15 21:36:38,069 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:36:38,069 INFO L380 BasicCegarLoop]: trace histogram [109, 108, 108, 58, 58, 58, 51, 51, 51, 1, 1] [2019-11-15 21:36:38,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:38,270 INFO L410 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:36:38,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:36:38,270 INFO L82 PathProgramCache]: Analyzing trace with hash -916856348, now seen corresponding path program 15 times [2019-11-15 21:36:38,270 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:36:38,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862353967] [2019-11-15 21:36:38,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:38,271 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:36:38,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:36:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:36:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 29292 backedges. 0 proven. 19545 refuted. 0 times theorem prover too weak. 9747 trivial. 0 not checked. [2019-11-15 21:36:43,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862353967] [2019-11-15 21:36:43,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589837987] [2019-11-15 21:36:43,646 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:36:43,943 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 59 check-sat command(s) [2019-11-15 21:36:43,943 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:36:43,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 110 conjunts are in the unsatisfiable core [2019-11-15 21:36:43,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:36:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 29292 backedges. 216 proven. 29076 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:36:51,516 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:36:51,516 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 110] total 213 [2019-11-15 21:36:51,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223895281] [2019-11-15 21:36:51,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 214 states [2019-11-15 21:36:51,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:36:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 214 interpolants. [2019-11-15 21:36:51,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11564, Invalid=34018, Unknown=0, NotChecked=0, Total=45582 [2019-11-15 21:36:51,520 INFO L87 Difference]: Start difference. First operand 655 states and 713 transitions. Second operand 214 states. [2019-11-15 21:37:16,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:37:16,436 INFO L93 Difference]: Finished difference Result 1316 states and 1534 transitions. [2019-11-15 21:37:16,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 369 states. [2019-11-15 21:37:16,437 INFO L78 Accepts]: Start accepts. Automaton has 214 states. Word has length 654 [2019-11-15 21:37:16,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:37:16,438 INFO L225 Difference]: With dead ends: 1316 [2019-11-15 21:37:16,438 INFO L226 Difference]: Without dead ends: 1315 [2019-11-15 21:37:16,442 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1232 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 470 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57949 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=74681, Invalid=147631, Unknown=0, NotChecked=0, Total=222312 [2019-11-15 21:37:16,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2019-11-15 21:37:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 969. [2019-11-15 21:37:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2019-11-15 21:37:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1079 transitions. [2019-11-15 21:37:16,476 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1079 transitions. Word has length 654 [2019-11-15 21:37:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:37:16,476 INFO L462 AbstractCegarLoop]: Abstraction has 969 states and 1079 transitions. [2019-11-15 21:37:16,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 214 states. [2019-11-15 21:37:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1079 transitions. [2019-11-15 21:37:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2019-11-15 21:37:16,481 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:37:16,481 INFO L380 BasicCegarLoop]: trace histogram [161, 160, 160, 109, 109, 109, 52, 52, 52, 1, 1] [2019-11-15 21:37:16,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:37:16,682 INFO L410 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:37:16,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:37:16,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1840041530, now seen corresponding path program 16 times [2019-11-15 21:37:16,682 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:37:16,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128670360] [2019-11-15 21:37:16,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:37:16,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:37:16,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:37:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:37:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 65784 backedges. 0 proven. 23040 refuted. 0 times theorem prover too weak. 42744 trivial. 0 not checked. [2019-11-15 21:37:18,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128670360] [2019-11-15 21:37:18,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920844750] [2019-11-15 21:37:18,125 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:37:18,399 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:37:18,400 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:37:18,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 53 conjunts are in the unsatisfiable core [2019-11-15 21:37:18,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:37:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 65784 backedges. 30359 proven. 0 refuted. 0 times theorem prover too weak. 35425 trivial. 0 not checked. [2019-11-15 21:37:20,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:37:20,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [6] total 59 [2019-11-15 21:37:20,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420206749] [2019-11-15 21:37:20,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2019-11-15 21:37:20,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:37:20,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2019-11-15 21:37:20,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1447, Invalid=2093, Unknown=0, NotChecked=0, Total=3540 [2019-11-15 21:37:20,191 INFO L87 Difference]: Start difference. First operand 969 states and 1079 transitions. Second operand 54 states. [2019-11-15 21:37:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:37:20,486 INFO L93 Difference]: Finished difference Result 971 states and 1081 transitions. [2019-11-15 21:37:20,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-11-15 21:37:20,486 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 966 [2019-11-15 21:37:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:37:20,487 INFO L225 Difference]: With dead ends: 971 [2019-11-15 21:37:20,487 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:37:20,488 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1288 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1447, Invalid=2093, Unknown=0, NotChecked=0, Total=3540 [2019-11-15 21:37:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:37:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:37:20,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:37:20,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:37:20,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 966 [2019-11-15 21:37:20,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:37:20,488 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:37:20,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 54 states. [2019-11-15 21:37:20,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:37:20,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:37:20,689 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:37:20,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:37:22,055 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 841 DAG size of output: 648 [2019-11-15 21:37:25,616 WARN L191 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 648 DAG size of output: 272 [2019-11-15 21:37:25,618 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:37:25,618 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:37:25,618 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-15 21:37:25,618 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L446 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: true [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-15 21:37:25,619 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-15 21:37:25,620 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:37:25,620 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-15 21:37:25,621 INFO L439 ceAbstractionStarter]: At program point L18-2(lines 18 25) the Hoare annotation is: (let ((.cse1 (<= ULTIMATE.start_main_~x~0 51)) (.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (or (and (<= ULTIMATE.start_main_~x~0 4) (<= 4 ULTIMATE.start_main_~x~0) (<= .cse0 8)) (and (<= ULTIMATE.start_main_~y~0 21) (<= 21 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 21)) (and (<= 24 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 24) (<= ULTIMATE.start_main_~x~0 24)) (and (<= ULTIMATE.start_main_~x~0 46) (<= .cse0 92) (<= 46 ULTIMATE.start_main_~x~0)) (and (<= 33 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 33) (<= ULTIMATE.start_main_~y~0 33)) (and .cse1 (<= 15 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 15)) (and (<= 43 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 43) (<= ULTIMATE.start_main_~y~0 43)) (and (<= 50 ULTIMATE.start_main_~x~0) (and .cse1 (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0))) (and (<= 45 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 45) (<= ULTIMATE.start_main_~x~0 45)) (and (<= ULTIMATE.start_main_~x~0 2) (<= .cse0 4) (<= 2 ULTIMATE.start_main_~x~0)) (and (<= ULTIMATE.start_main_~x~0 11) (<= 11 ULTIMATE.start_main_~x~0) (<= .cse0 22)) (and (<= 28 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 28) (<= ULTIMATE.start_main_~x~0 28)) (and (<= 7 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 7) (<= ULTIMATE.start_main_~y~0 7)) (and (<= 6 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 6) (<= ULTIMATE.start_main_~y~0 6)) (and (<= 18 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 18) (<= .cse0 36)) (and (<= 1 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 1) (<= .cse0 2)) (and (<= .cse0 26) (<= ULTIMATE.start_main_~x~0 13) (<= 13 ULTIMATE.start_main_~x~0)) (and .cse1 (<= 25 ULTIMATE.start_main_~x~0) (<= .cse0 50)) (and .cse1 (<= 38 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 38)) (and (<= 26 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 26) (<= .cse0 52)) (and (<= ULTIMATE.start_main_~x~0 42) (<= 42 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 42)) (and (<= 10 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 10) (<= ULTIMATE.start_main_~x~0 10)) (and (<= ULTIMATE.start_main_~x~0 41) (<= 41 ULTIMATE.start_main_~x~0) (<= .cse0 82)) (and (<= ULTIMATE.start_main_~x~0 8) (<= 8 ULTIMATE.start_main_~x~0) (<= .cse0 16)) (and (<= ULTIMATE.start_main_~y~0 44) (<= 44 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 44)) (and (<= .cse0 0) (<= 0 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~y~0)) (and .cse1 (<= 48 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 48)) (and (<= ULTIMATE.start_main_~x~0 34) (<= 34 ULTIMATE.start_main_~x~0) (<= .cse0 68)) (and (<= 40 ULTIMATE.start_main_~x~0) (<= .cse0 80) (<= ULTIMATE.start_main_~x~0 40)) (and (<= 5 ULTIMATE.start_main_~x~0) (<= .cse0 10) (<= ULTIMATE.start_main_~x~0 5)) (and (<= 14 ULTIMATE.start_main_~x~0) (<= .cse0 28) (<= ULTIMATE.start_main_~x~0 14)) (and (<= 17 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 17) (<= ULTIMATE.start_main_~y~0 17)) (and (<= ULTIMATE.start_main_~x~0 16) (<= ULTIMATE.start_main_~y~0 16) (<= 16 ULTIMATE.start_main_~x~0)) (and (<= ULTIMATE.start_main_~x~0 39) (<= 39 ULTIMATE.start_main_~x~0) (<= .cse0 78)) (and (<= 32 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 32) (<= ULTIMATE.start_main_~x~0 32)) (and .cse1 (<= .cse0 70) (<= 35 ULTIMATE.start_main_~x~0)) (and (<= ULTIMATE.start_main_~x~0 12) (<= 12 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 12)) (and (<= 19 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 19) (<= ULTIMATE.start_main_~y~0 19)) (and (<= ULTIMATE.start_main_~x~0 36) (<= 36 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 36)) (and (<= ULTIMATE.start_main_~x~0 30) (<= 30 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 30)) (and (and (<= ULTIMATE.start_main_~x~0 103) (<= .cse0 102)) (<= 51 ULTIMATE.start_main_~x~0)) (and (<= 29 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 29) (<= .cse0 58)) (and (<= ULTIMATE.start_main_~x~0 47) (<= 47 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 47)) (and (<= 23 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 23) (<= ULTIMATE.start_main_~x~0 23)) (and (<= ULTIMATE.start_main_~x~0 50) (<= 49 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 49)) (and (<= ULTIMATE.start_main_~x~0 27) (<= .cse0 54) (<= 27 ULTIMATE.start_main_~x~0)) (and (<= 37 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 37) (<= .cse0 74)) (and (<= 31 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~y~0 31) (<= ULTIMATE.start_main_~x~0 31)) (and (<= ULTIMATE.start_main_~x~0 20) (<= ULTIMATE.start_main_~y~0 20) (<= 20 ULTIMATE.start_main_~x~0)) (and (<= ULTIMATE.start_main_~y~0 9) (<= ULTIMATE.start_main_~x~0 9) (<= 9 ULTIMATE.start_main_~x~0)) (and .cse1 (<= 3 ULTIMATE.start_main_~x~0) (<= .cse0 6)) (and (<= 22 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 22) (<= .cse0 44)))) [2019-11-15 21:37:25,621 INFO L443 ceAbstractionStarter]: For program point L18-3(lines 18 25) no Hoare annotation was computed. [2019-11-15 21:37:25,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:37:25 BoogieIcfgContainer [2019-11-15 21:37:25,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:37:25,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:37:25,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:37:25,651 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:37:25,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:35:11" (3/4) ... [2019-11-15 21:37:25,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:37:25,664 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:37:25,664 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:37:25,699 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_26df71c2-2a0a-425f-b40d-18f75a399bf5/bin/uautomizer/witness.graphml [2019-11-15 21:37:25,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:37:25,701 INFO L168 Benchmark]: Toolchain (without parser) took 134649.31 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.1 GB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -241.0 MB). Peak memory consumption was 817.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:37:25,701 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:37:25,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:37:25,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.68 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. [2019-11-15 21:37:25,702 INFO L168 Benchmark]: Boogie Preprocessor took 25.94 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. [2019-11-15 21:37:25,703 INFO L168 Benchmark]: RCFGBuilder took 263.28 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:37:25,703 INFO L168 Benchmark]: TraceAbstraction took 134039.19 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 914.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2019-11-15 21:37:25,704 INFO L168 Benchmark]: Witness Printer took 48.78 ms. Allocated memory is still 2.1 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:37:25,705 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.68 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 25.94 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 263.28 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 134039.19 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 914.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 48.78 ms. Allocated memory is still 2.1 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((x <= 4 && 4 <= x) && x + y <= 8) || ((y <= 21 && 21 <= x) && x <= 21)) || ((24 <= x && y <= 24) && x <= 24)) || ((x <= 46 && x + y <= 92) && 46 <= x)) || ((33 <= x && x <= 33) && y <= 33)) || ((x <= 51 && 15 <= x) && y <= 15)) || ((43 <= x && x <= 43) && y <= 43)) || (50 <= x && x <= 51 && y <= x)) || ((45 <= x && y <= 45) && x <= 45)) || ((x <= 2 && x + y <= 4) && 2 <= x)) || ((x <= 11 && 11 <= x) && x + y <= 22)) || ((28 <= x && y <= 28) && x <= 28)) || ((7 <= x && x <= 7) && y <= 7)) || ((6 <= x && x <= 6) && y <= 6)) || ((18 <= x && x <= 18) && x + y <= 36)) || ((1 <= x && x <= 1) && x + y <= 2)) || ((x + y <= 26 && x <= 13) && 13 <= x)) || ((x <= 51 && 25 <= x) && x + y <= 50)) || ((x <= 51 && 38 <= x) && y <= 38)) || ((26 <= x && x <= 26) && x + y <= 52)) || ((x <= 42 && 42 <= x) && y <= 42)) || ((10 <= x && y <= 10) && x <= 10)) || ((x <= 41 && 41 <= x) && x + y <= 82)) || ((x <= 8 && 8 <= x) && x + y <= 16)) || ((y <= 44 && 44 <= x) && x <= 44)) || ((x + y <= 0 && 0 <= x) && 0 <= y)) || ((x <= 51 && 48 <= x) && y <= 48)) || ((x <= 34 && 34 <= x) && x + y <= 68)) || ((40 <= x && x + y <= 80) && x <= 40)) || ((5 <= x && x + y <= 10) && x <= 5)) || ((14 <= x && x + y <= 28) && x <= 14)) || ((17 <= x && x <= 17) && y <= 17)) || ((x <= 16 && y <= 16) && 16 <= x)) || ((x <= 39 && 39 <= x) && x + y <= 78)) || ((32 <= x && y <= 32) && x <= 32)) || ((x <= 51 && x + y <= 70) && 35 <= x)) || ((x <= 12 && 12 <= x) && y <= 12)) || ((19 <= x && x <= 19) && y <= 19)) || ((x <= 36 && 36 <= x) && y <= 36)) || ((x <= 30 && 30 <= x) && y <= 30)) || ((x <= 103 && x + y <= 102) && 51 <= x)) || ((29 <= x && x <= 29) && x + y <= 58)) || ((x <= 47 && 47 <= x) && y <= 47)) || ((23 <= x && y <= 23) && x <= 23)) || ((x <= 50 && 49 <= x) && y <= 49)) || ((x <= 27 && x + y <= 54) && 27 <= x)) || ((37 <= x && x <= 37) && x + y <= 74)) || ((31 <= x && y <= 31) && x <= 31)) || ((x <= 20 && y <= 20) && 20 <= x)) || ((y <= 9 && x <= 9) && 9 <= x)) || ((x <= 51 && 3 <= x) && x + y <= 6)) || ((22 <= x && x <= 22) && x + y <= 44) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Result: SAFE, OverallTime: 133.9s, OverallIterations: 72, TraceHistogramMax: 161, AutomataDifference: 49.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, HoareTripleCheckerStatistics: 2773 SDtfs, 10014 SDslu, 23681 SDs, 0 SdLazy, 31616 SolverSat, 2756 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14811 GetRequests, 12343 SyntacticMatches, 0 SemanticMatches, 2468 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64842 ImplicationChecksByTransitivity, 69.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2487occurred in iteration=67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 72 MinimizatonAttempts, 36105 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 56 NumberOfFragments, 572 HoareAnnotationTreeSize, 2 FomulaSimplifications, 603 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 2 FomulaSimplificationsInter, 36845 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 53.0s InterpolantComputationTime, 24136 NumberOfCodeBlocks, 23734 NumberOfCodeBlocksAsserted, 963 NumberOfCheckSat, 23996 ConstructedInterpolants, 0 QuantifiedInterpolants, 22278028 SizeOfPredicates, 8 NumberOfNonLiveVariables, 19596 ConjunctsInSsa, 1876 ConjunctsInUnsatCore, 140 InterpolantComputations, 6 PerfectInterpolantSequences, 139636/543160 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...