./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label42.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3812c831b8b49ff0b200ce5b38627f93268691f2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:19,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:19,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:19,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:19,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:19,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:19,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:19,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:19,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:19,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:19,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:19,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:19,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:19,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:19,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:19,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:19,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:19,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:19,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:19,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:19,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:19,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:19,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:19,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:19,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:19,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:19,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:19,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:19,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:19,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:19,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:19,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:19,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:19,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:19,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:19,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:19,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:19,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:19,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:19,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:19,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:19,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:19,657 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:19,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:19,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:19,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:19,658 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:19,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:19,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:19,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:19,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:19,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:19,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:19,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:19,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:19,660 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:19,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:19,660 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:19,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:19,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:19,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:19,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:19,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:19,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:19,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:19,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:19,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:19,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:19,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:19,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:19,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3812c831b8b49ff0b200ce5b38627f93268691f2 [2019-10-22 08:57:19,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:19,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:19,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:19,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:19,706 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:19,707 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label42.c [2019-10-22 08:57:19,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/data/14eab8e11/e88c56c85152496cad155c5d5856dfd5/FLAG4f3983b21 [2019-10-22 08:57:20,204 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:20,205 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/sv-benchmarks/c/eca-rers2012/Problem14_label42.c [2019-10-22 08:57:20,215 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/data/14eab8e11/e88c56c85152496cad155c5d5856dfd5/FLAG4f3983b21 [2019-10-22 08:57:20,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/data/14eab8e11/e88c56c85152496cad155c5d5856dfd5 [2019-10-22 08:57:20,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:20,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:20,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:20,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:20,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:20,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:20" (1/1) ... [2019-10-22 08:57:20,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec30614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:20, skipping insertion in model container [2019-10-22 08:57:20,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:20" (1/1) ... [2019-10-22 08:57:20,742 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:20,786 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:21,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:21,191 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:21,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:21,319 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:21,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21 WrapperNode [2019-10-22 08:57:21,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:21,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:21,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:21,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:21,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:21,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:21,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:21,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:21,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... [2019-10-22 08:57:21,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:21,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:21,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:21,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:21,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:22,814 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:22,815 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:57:22,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:22 BoogieIcfgContainer [2019-10-22 08:57:22,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:22,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:22,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:22,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:22,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:20" (1/3) ... [2019-10-22 08:57:22,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9a5206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:22, skipping insertion in model container [2019-10-22 08:57:22,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:21" (2/3) ... [2019-10-22 08:57:22,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9a5206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:22, skipping insertion in model container [2019-10-22 08:57:22,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:22" (3/3) ... [2019-10-22 08:57:22,824 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label42.c [2019-10-22 08:57:22,834 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:22,841 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:22,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:22,875 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:22,877 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:22,877 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:22,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:22,878 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:22,878 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:22,878 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:22,878 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:22,900 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-10-22 08:57:22,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 08:57:22,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:22,909 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:22,911 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:22,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:22,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1824112922, now seen corresponding path program 1 times [2019-10-22 08:57:22,923 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:22,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793804062] [2019-10-22 08:57:22,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:22,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:22,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:23,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793804062] [2019-10-22 08:57:23,255 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:23,255 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:23,255 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158724944] [2019-10-22 08:57:23,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:23,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:23,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:23,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:23,273 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 6 states. [2019-10-22 08:57:24,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:24,901 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2019-10-22 08:57:24,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:24,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2019-10-22 08:57:24,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:24,921 INFO L225 Difference]: With dead ends: 852 [2019-10-22 08:57:24,922 INFO L226 Difference]: Without dead ends: 538 [2019-10-22 08:57:24,925 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:24,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-22 08:57:25,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-10-22 08:57:25,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-22 08:57:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2019-10-22 08:57:25,018 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 42 [2019-10-22 08:57:25,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:25,019 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2019-10-22 08:57:25,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:25,019 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2019-10-22 08:57:25,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-22 08:57:25,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:25,027 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:25,028 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:25,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:25,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1937473168, now seen corresponding path program 1 times [2019-10-22 08:57:25,028 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:25,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13158056] [2019-10-22 08:57:25,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:25,029 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:25,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-22 08:57:25,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13158056] [2019-10-22 08:57:25,260 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:25,260 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:25,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789767958] [2019-10-22 08:57:25,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:25,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:25,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:25,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:25,263 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand 4 states. [2019-10-22 08:57:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:26,134 INFO L93 Difference]: Finished difference Result 1252 states and 1948 transitions. [2019-10-22 08:57:26,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:57:26,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2019-10-22 08:57:26,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:26,138 INFO L225 Difference]: With dead ends: 1252 [2019-10-22 08:57:26,138 INFO L226 Difference]: Without dead ends: 894 [2019-10-22 08:57:26,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-10-22 08:57:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2019-10-22 08:57:26,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2019-10-22 08:57:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1206 transitions. [2019-10-22 08:57:26,167 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1206 transitions. Word has length 190 [2019-10-22 08:57:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:26,168 INFO L462 AbstractCegarLoop]: Abstraction has 894 states and 1206 transitions. [2019-10-22 08:57:26,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1206 transitions. [2019-10-22 08:57:26,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-22 08:57:26,171 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:26,171 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:26,171 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:26,172 INFO L82 PathProgramCache]: Analyzing trace with hash -215176253, now seen corresponding path program 1 times [2019-10-22 08:57:26,172 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:26,172 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737714330] [2019-10-22 08:57:26,172 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,172 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:26,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 143 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 08:57:26,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737714330] [2019-10-22 08:57:26,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010856735] [2019-10-22 08:57:26,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:26,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:57:26,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:26,658 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 08:57:26,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:26,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-10-22 08:57:26,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958502031] [2019-10-22 08:57:26,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:26,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:26,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:26,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:26,660 INFO L87 Difference]: Start difference. First operand 894 states and 1206 transitions. Second operand 4 states. [2019-10-22 08:57:27,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:27,361 INFO L93 Difference]: Finished difference Result 1815 states and 2499 transitions. [2019-10-22 08:57:27,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:57:27,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 213 [2019-10-22 08:57:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:27,364 INFO L225 Difference]: With dead ends: 1815 [2019-10-22 08:57:27,364 INFO L226 Difference]: Without dead ends: 1072 [2019-10-22 08:57:27,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:27,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2019-10-22 08:57:27,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2019-10-22 08:57:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2019-10-22 08:57:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1018 transitions. [2019-10-22 08:57:27,387 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1018 transitions. Word has length 213 [2019-10-22 08:57:27,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:27,388 INFO L462 AbstractCegarLoop]: Abstraction has 894 states and 1018 transitions. [2019-10-22 08:57:27,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:27,388 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1018 transitions. [2019-10-22 08:57:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-10-22 08:57:27,394 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:27,394 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:27,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:27,595 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:27,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1224232174, now seen corresponding path program 1 times [2019-10-22 08:57:27,595 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:27,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182703668] [2019-10-22 08:57:27,596 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,596 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:27,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 241 proven. 65 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-22 08:57:28,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182703668] [2019-10-22 08:57:28,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488995427] [2019-10-22 08:57:28,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:28,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:57:28,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2019-10-22 08:57:28,286 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:28,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2019-10-22 08:57:28,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168251182] [2019-10-22 08:57:28,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:28,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:28,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:28,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:28,288 INFO L87 Difference]: Start difference. First operand 894 states and 1018 transitions. Second operand 4 states. [2019-10-22 08:57:29,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:29,263 INFO L93 Difference]: Finished difference Result 2521 states and 2917 transitions. [2019-10-22 08:57:29,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:29,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2019-10-22 08:57:29,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:29,268 INFO L225 Difference]: With dead ends: 2521 [2019-10-22 08:57:29,269 INFO L226 Difference]: Without dead ends: 1606 [2019-10-22 08:57:29,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:57:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-10-22 08:57:29,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-10-22 08:57:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-10-22 08:57:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1635 transitions. [2019-10-22 08:57:29,300 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1635 transitions. Word has length 308 [2019-10-22 08:57:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:29,301 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1635 transitions. [2019-10-22 08:57:29,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1635 transitions. [2019-10-22 08:57:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2019-10-22 08:57:29,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:29,308 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:29,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:29,509 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:29,509 INFO L82 PathProgramCache]: Analyzing trace with hash 118483321, now seen corresponding path program 1 times [2019-10-22 08:57:29,510 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:29,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940581622] [2019-10-22 08:57:29,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:29,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:29,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 242 proven. 3 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2019-10-22 08:57:29,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940581622] [2019-10-22 08:57:29,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087969118] [2019-10-22 08:57:29,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:29,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:29,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:30,074 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-22 08:57:30,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:30,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2019-10-22 08:57:30,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408526163] [2019-10-22 08:57:30,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:30,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:30,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:30,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:30,077 INFO L87 Difference]: Start difference. First operand 1428 states and 1635 transitions. Second operand 3 states. [2019-10-22 08:57:30,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:30,539 INFO L93 Difference]: Finished difference Result 3032 states and 3522 transitions. [2019-10-22 08:57:30,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:30,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 405 [2019-10-22 08:57:30,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:30,545 INFO L225 Difference]: With dead ends: 3032 [2019-10-22 08:57:30,545 INFO L226 Difference]: Without dead ends: 1784 [2019-10-22 08:57:30,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2019-10-22 08:57:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2019-10-22 08:57:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2019-10-22 08:57:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2003 transitions. [2019-10-22 08:57:30,579 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2003 transitions. Word has length 405 [2019-10-22 08:57:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:30,579 INFO L462 AbstractCegarLoop]: Abstraction has 1784 states and 2003 transitions. [2019-10-22 08:57:30,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2003 transitions. [2019-10-22 08:57:30,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2019-10-22 08:57:30,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:30,586 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:30,787 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:30,787 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:30,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:30,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1543992600, now seen corresponding path program 1 times [2019-10-22 08:57:30,787 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:30,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133352734] [2019-10-22 08:57:30,788 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:30,788 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:30,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:31,243 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 406 proven. 65 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2019-10-22 08:57:31,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133352734] [2019-10-22 08:57:31,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907807570] [2019-10-22 08:57:31,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:31,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:31,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2019-10-22 08:57:31,395 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:31,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-10-22 08:57:31,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979766993] [2019-10-22 08:57:31,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:31,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:31,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:31,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:31,403 INFO L87 Difference]: Start difference. First operand 1784 states and 2003 transitions. Second operand 3 states. [2019-10-22 08:57:31,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:31,857 INFO L93 Difference]: Finished difference Result 4100 states and 4649 transitions. [2019-10-22 08:57:31,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:31,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2019-10-22 08:57:31,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:31,862 INFO L225 Difference]: With dead ends: 4100 [2019-10-22 08:57:31,862 INFO L226 Difference]: Without dead ends: 2496 [2019-10-22 08:57:31,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 406 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2019-10-22 08:57:31,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2019-10-22 08:57:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2019-10-22 08:57:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2765 transitions. [2019-10-22 08:57:31,900 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2765 transitions. Word has length 407 [2019-10-22 08:57:31,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:31,901 INFO L462 AbstractCegarLoop]: Abstraction has 2496 states and 2765 transitions. [2019-10-22 08:57:31,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:31,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2765 transitions. [2019-10-22 08:57:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2019-10-22 08:57:31,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:31,909 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:32,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:32,110 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:32,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1006804463, now seen corresponding path program 1 times [2019-10-22 08:57:32,110 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:32,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399502999] [2019-10-22 08:57:32,110 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:32,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:32,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 425 proven. 65 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2019-10-22 08:57:32,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399502999] [2019-10-22 08:57:32,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623268086] [2019-10-22 08:57:32,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:32,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:32,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:32,644 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2019-10-22 08:57:32,644 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:32,644 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-10-22 08:57:32,645 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606818312] [2019-10-22 08:57:32,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:32,645 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:32,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:32,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:32,645 INFO L87 Difference]: Start difference. First operand 2496 states and 2765 transitions. Second operand 3 states. [2019-10-22 08:57:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:32,990 INFO L93 Difference]: Finished difference Result 5522 states and 6159 transitions. [2019-10-22 08:57:32,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:32,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 426 [2019-10-22 08:57:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:32,999 INFO L225 Difference]: With dead ends: 5522 [2019-10-22 08:57:32,999 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:33,002 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 425 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:33,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 426 [2019-10-22 08:57:33,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:33,003 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:33,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:33,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:33,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:33,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:33,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:57:33,349 INFO L443 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-10-22 08:57:33,349 INFO L443 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-10-22 08:57:33,349 INFO L443 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,350 INFO L443 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,351 INFO L443 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-10-22 08:57:33,352 INFO L443 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,353 INFO L443 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,357 INFO L443 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,357 INFO L443 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-10-22 08:57:33,357 INFO L443 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-10-22 08:57:33,358 INFO L443 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-10-22 08:57:33,358 INFO L443 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-10-22 08:57:33,358 INFO L443 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-10-22 08:57:33,358 INFO L443 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-10-22 08:57:33,358 INFO L443 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-10-22 08:57:33,358 INFO L443 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2019-10-22 08:57:33,360 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2019-10-22 08:57:33,361 INFO L443 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-10-22 08:57:33,362 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-10-22 08:57:33,363 INFO L443 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-10-22 08:57:33,364 INFO L443 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2019-10-22 08:57:33,365 INFO L443 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-10-22 08:57:33,367 INFO L443 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-10-22 08:57:33,367 INFO L443 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-10-22 08:57:33,367 INFO L443 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-10-22 08:57:33,367 INFO L443 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,368 INFO L443 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,369 INFO L443 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-10-22 08:57:33,370 INFO L443 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-10-22 08:57:33,370 INFO L443 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2019-10-22 08:57:33,370 INFO L443 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-10-22 08:57:33,370 INFO L443 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-10-22 08:57:33,370 INFO L443 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-10-22 08:57:33,371 INFO L443 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,371 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,371 INFO L439 ceAbstractionStarter]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a21~0 8) .cse0) (and (not (= 7 ~a15~0)) (<= ~a15~0 8)) (and (<= 10 ~a21~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))))) [2019-10-22 08:57:33,371 INFO L443 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-10-22 08:57:33,371 INFO L443 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-10-22 08:57:33,371 INFO L443 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2019-10-22 08:57:33,371 INFO L443 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L446 ceAbstractionStarter]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-10-22 08:57:33,372 INFO L443 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-10-22 08:57:33,373 INFO L443 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,379 INFO L443 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,379 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-10-22 08:57:33,379 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L439 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a21~0 8) .cse0) (and (not (= 7 ~a15~0)) (<= ~a15~0 8)) (and (<= 10 ~a21~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))))) [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-10-22 08:57:33,380 INFO L443 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-10-22 08:57:33,381 INFO L443 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-10-22 08:57:33,382 INFO L443 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-10-22 08:57:33,383 INFO L443 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-10-22 08:57:33,384 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-10-22 08:57:33,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:33 BoogieIcfgContainer [2019-10-22 08:57:33,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:33,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:33,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:33,406 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:33,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:22" (3/4) ... [2019-10-22 08:57:33,410 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:33,433 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:57:33,434 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:57:33,605 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c8ece02e-24a6-4e8a-bfcc-01791f897520/bin/uautomizer/witness.graphml [2019-10-22 08:57:33,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:33,610 INFO L168 Benchmark]: Toolchain (without parser) took 12880.17 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 629.1 MB). Free memory was 939.3 MB in the beginning and 906.0 MB in the end (delta: 33.2 MB). Peak memory consumption was 662.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,611 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:33,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.25 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: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,611 INFO L168 Benchmark]: Boogie Preprocessor took 85.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,612 INFO L168 Benchmark]: RCFGBuilder took 1315.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.4 MB in the end (delta: 128.4 MB). Peak memory consumption was 128.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,612 INFO L168 Benchmark]: TraceAbstraction took 10588.58 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 490.2 MB). Free memory was 956.4 MB in the beginning and 926.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 520.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,612 INFO L168 Benchmark]: Witness Printer took 202.04 ms. Allocated memory is still 1.7 GB. Free memory was 926.1 MB in the beginning and 906.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:33,614 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 590.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.25 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: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1315.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.4 MB in the end (delta: 128.4 MB). Peak memory consumption was 128.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10588.58 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 490.2 MB). Free memory was 956.4 MB in the beginning and 926.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 520.5 MB. Max. memory is 11.5 GB. * Witness Printer took 202.04 ms. Allocated memory is still 1.7 GB. Free memory was 926.1 MB in the beginning and 906.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((a21 <= 8 && a24 == 1) || (!(7 == a15) && a15 <= 8)) || (10 <= a21 && a24 == 1)) || (a24 == 1 && 0 < a12 + 43) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((a21 <= 8 && a24 == 1) || (!(7 == a15) && a15 <= 8)) || (10 <= a21 && a24 == 1)) || (a24 == 1 && 0 < a12 + 43) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 10.5s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 665 SDtfs, 1924 SDslu, 63 SDs, 0 SdLazy, 4990 SolverSat, 1227 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1794 GetRequests, 1756 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2496occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 356 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 48 NumberOfFragments, 65 HoareAnnotationTreeSize, 3 FomulaSimplifications, 574 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 246 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3750 NumberOfCodeBlocks, 3750 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3738 ConstructedInterpolants, 0 QuantifiedInterpolants, 4579010 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2301 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 4332/4534 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...