./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label53.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f34a66e6cbe0098653c8746e52fc67ba48e68a68 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 23:29:41,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:29:41,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:29:41,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:29:41,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:29:41,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:29:41,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:29:41,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:29:41,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:29:41,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:29:41,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:29:41,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:29:41,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:29:41,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:29:41,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:29:41,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:29:41,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:29:41,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:29:41,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:29:41,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:29:41,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:29:41,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:29:41,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:29:41,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:29:41,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:29:41,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:29:41,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:29:41,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:29:41,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:29:41,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:29:41,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:29:41,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:29:41,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:29:41,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:29:41,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:29:41,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:29:41,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:29:41,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:29:41,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:29:41,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:29:41,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:29:41,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:29:41,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:29:41,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:29:41,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:29:41,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:29:41,639 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:29:41,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:29:41,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:29:41,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:29:41,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:29:41,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:29:41,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:29:41,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:29:41,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:29:41,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:29:41,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:29:41,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:29:41,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:29:41,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:29:41,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:29:41,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:29:41,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:29:41,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:29:41,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:29:41,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:29:41,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:29:41,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:29:41,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:29:41,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:29:41,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:29:41,644 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> f34a66e6cbe0098653c8746e52fc67ba48e68a68 [2020-10-19 23:29:41,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:29:41,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:29:41,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:29:41,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:29:41,867 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:29:41,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-10-19 23:29:41,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f779ea91b/bab5a8d1b95046d9893e7879eeb5d2db/FLAGdcc654400 [2020-10-19 23:29:42,639 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:29:42,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-10-19 23:29:42,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f779ea91b/bab5a8d1b95046d9893e7879eeb5d2db/FLAGdcc654400 [2020-10-19 23:29:42,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f779ea91b/bab5a8d1b95046d9893e7879eeb5d2db [2020-10-19 23:29:42,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:29:42,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:29:42,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:29:42,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:29:42,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:29:42,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:29:42" (1/1) ... [2020-10-19 23:29:42,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b62e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:42, skipping insertion in model container [2020-10-19 23:29:42,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:29:42" (1/1) ... [2020-10-19 23:29:42,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:29:42,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:29:43,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:29:43,424 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:29:43,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:29:43,615 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:29:43,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43 WrapperNode [2020-10-19 23:29:43,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:29:43,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:29:43,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:29:43,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:29:43,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:29:43,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:29:43,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:29:43,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:29:43,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... [2020-10-19 23:29:43,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:29:43,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:29:43,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:29:43,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:29:43,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:29:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:29:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:29:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:29:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:29:45,514 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:29:45,516 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:29:45,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:29:45 BoogieIcfgContainer [2020-10-19 23:29:45,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:29:45,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:29:45,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:29:45,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:29:45,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:29:42" (1/3) ... [2020-10-19 23:29:45,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668c093f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:29:45, skipping insertion in model container [2020-10-19 23:29:45,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:43" (2/3) ... [2020-10-19 23:29:45,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668c093f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:29:45, skipping insertion in model container [2020-10-19 23:29:45,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:29:45" (3/3) ... [2020-10-19 23:29:45,529 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label53.c [2020-10-19 23:29:45,541 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:29:45,549 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:29:45,564 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:29:45,604 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:29:45,604 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:29:45,605 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:29:45,605 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:29:45,605 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:29:45,605 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:29:45,605 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:29:45,606 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:29:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-19 23:29:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-19 23:29:45,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:45,638 INFO L422 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:45,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:45,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:45,645 INFO L82 PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times [2020-10-19 23:29:45,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:45,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485151716] [2020-10-19 23:29:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:45,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485151716] [2020-10-19 23:29:45,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:45,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:29:45,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604693548] [2020-10-19 23:29:45,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:45,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:45,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:45,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:45,994 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-19 23:29:47,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:47,356 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-10-19 23:29:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:47,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-10-19 23:29:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:47,375 INFO L225 Difference]: With dead ends: 670 [2020-10-19 23:29:47,376 INFO L226 Difference]: Without dead ends: 360 [2020-10-19 23:29:47,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:47,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-19 23:29:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-19 23:29:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-19 23:29:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2020-10-19 23:29:47,457 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 49 [2020-10-19 23:29:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:47,458 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2020-10-19 23:29:47,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2020-10-19 23:29:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-19 23:29:47,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:47,464 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-19 23:29:47,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:29:47,465 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:47,465 INFO L82 PathProgramCache]: Analyzing trace with hash 171197373, now seen corresponding path program 1 times [2020-10-19 23:29:47,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:47,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942512951] [2020-10-19 23:29:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:47,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942512951] [2020-10-19 23:29:47,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:47,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:29:47,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667218303] [2020-10-19 23:29:47,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:47,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:47,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:47,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:47,636 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand 3 states. [2020-10-19 23:29:48,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:48,625 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2020-10-19 23:29:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:48,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-10-19 23:29:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:48,632 INFO L225 Difference]: With dead ends: 1074 [2020-10-19 23:29:48,632 INFO L226 Difference]: Without dead ends: 716 [2020-10-19 23:29:48,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:48,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-19 23:29:48,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-19 23:29:48,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-19 23:29:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-10-19 23:29:48,673 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 124 [2020-10-19 23:29:48,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:48,674 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-10-19 23:29:48,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:48,674 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-10-19 23:29:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-19 23:29:48,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:48,680 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-19 23:29:48,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:29:48,680 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:48,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:48,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1194005639, now seen corresponding path program 1 times [2020-10-19 23:29:48,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:48,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748217238] [2020-10-19 23:29:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:48,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748217238] [2020-10-19 23:29:48,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:48,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:48,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012077955] [2020-10-19 23:29:48,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:29:48,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:48,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:29:48,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:29:48,899 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-10-19 23:29:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:50,300 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2020-10-19 23:29:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:29:50,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-19 23:29:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:50,311 INFO L225 Difference]: With dead ends: 1964 [2020-10-19 23:29:50,311 INFO L226 Difference]: Without dead ends: 1250 [2020-10-19 23:29:50,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:29:50,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-19 23:29:50,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-10-19 23:29:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-19 23:29:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-10-19 23:29:50,349 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 128 [2020-10-19 23:29:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:50,349 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-10-19 23:29:50,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:29:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-10-19 23:29:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-19 23:29:50,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:50,355 INFO L422 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:50,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:29:50,355 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:50,355 INFO L82 PathProgramCache]: Analyzing trace with hash -2082751882, now seen corresponding path program 1 times [2020-10-19 23:29:50,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:50,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954362137] [2020-10-19 23:29:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-19 23:29:50,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954362137] [2020-10-19 23:29:50,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:50,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:50,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249333218] [2020-10-19 23:29:50,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:29:50,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:50,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:29:50,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:29:50,575 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-10-19 23:29:51,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:51,610 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-10-19 23:29:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:29:51,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2020-10-19 23:29:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:51,620 INFO L225 Difference]: With dead ends: 2705 [2020-10-19 23:29:51,621 INFO L226 Difference]: Without dead ends: 1606 [2020-10-19 23:29:51,623 INFO L677 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 [2020-10-19 23:29:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-19 23:29:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-10-19 23:29:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-19 23:29:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-10-19 23:29:51,661 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 208 [2020-10-19 23:29:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:51,661 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-10-19 23:29:51,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:29:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-10-19 23:29:51,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-19 23:29:51,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:51,666 INFO L422 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, 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, 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] [2020-10-19 23:29:51,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:29:51,666 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:51,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1616789824, now seen corresponding path program 1 times [2020-10-19 23:29:51,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:51,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418363170] [2020-10-19 23:29:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 188 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-19 23:29:52,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418363170] [2020-10-19 23:29:52,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603799666] [2020-10-19 23:29:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 23:29:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:52,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:52,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-19 23:29:52,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:52,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:29:52,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082942995] [2020-10-19 23:29:52,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:52,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:52,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:52,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:29:52,449 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-10-19 23:29:53,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:53,457 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-10-19 23:29:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:53,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 335 [2020-10-19 23:29:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:53,471 INFO L225 Difference]: With dead ends: 3388 [2020-10-19 23:29:53,471 INFO L226 Difference]: Without dead ends: 1962 [2020-10-19 23:29:53,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:29:53,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-19 23:29:53,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-10-19 23:29:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-19 23:29:53,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2020-10-19 23:29:53,527 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 335 [2020-10-19 23:29:53,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:53,528 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2020-10-19 23:29:53,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:53,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2020-10-19 23:29:53,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-19 23:29:53,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:53,534 INFO L422 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, 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, 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] [2020-10-19 23:29:53,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:53,750 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:53,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:53,751 INFO L82 PathProgramCache]: Analyzing trace with hash 596465162, now seen corresponding path program 1 times [2020-10-19 23:29:53,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:53,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042212813] [2020-10-19 23:29:53,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 271 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:54,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042212813] [2020-10-19 23:29:54,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679934487] [2020-10-19 23:29:54,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 23:29:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:54,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-19 23:29:54,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:54,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:29:54,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243053292] [2020-10-19 23:29:54,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:54,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:54,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:54,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:29:54,537 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand 3 states. [2020-10-19 23:29:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:55,297 INFO L93 Difference]: Finished difference Result 4278 states and 4949 transitions. [2020-10-19 23:29:55,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:55,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2020-10-19 23:29:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:55,309 INFO L225 Difference]: With dead ends: 4278 [2020-10-19 23:29:55,309 INFO L226 Difference]: Without dead ends: 2318 [2020-10-19 23:29:55,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:29:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-10-19 23:29:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1606. [2020-10-19 23:29:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-19 23:29:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1805 transitions. [2020-10-19 23:29:55,348 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1805 transitions. Word has length 339 [2020-10-19 23:29:55,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:55,349 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1805 transitions. [2020-10-19 23:29:55,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1805 transitions. [2020-10-19 23:29:55,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-19 23:29:55,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:55,356 INFO L422 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, 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, 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] [2020-10-19 23:29:55,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:55,570 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:55,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1847768212, now seen corresponding path program 1 times [2020-10-19 23:29:55,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:55,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432671272] [2020-10-19 23:29:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 195 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-19 23:29:56,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432671272] [2020-10-19 23:29:56,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539868234] [2020-10-19 23:29:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 23:29:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:56,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:56,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-19 23:29:56,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:56,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 23:29:56,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118597103] [2020-10-19 23:29:56,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:56,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:56,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:56,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:29:56,438 INFO L87 Difference]: Start difference. First operand 1606 states and 1805 transitions. Second operand 3 states. [2020-10-19 23:29:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:57,229 INFO L93 Difference]: Finished difference Result 3388 states and 3919 transitions. [2020-10-19 23:29:57,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:57,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2020-10-19 23:29:57,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:57,241 INFO L225 Difference]: With dead ends: 3388 [2020-10-19 23:29:57,241 INFO L226 Difference]: Without dead ends: 2140 [2020-10-19 23:29:57,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:29:57,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-10-19 23:29:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-10-19 23:29:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-10-19 23:29:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2378 transitions. [2020-10-19 23:29:57,285 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2378 transitions. Word has length 342 [2020-10-19 23:29:57,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:57,286 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2378 transitions. [2020-10-19 23:29:57,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:57,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2378 transitions. [2020-10-19 23:29:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-19 23:29:57,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:57,292 INFO L422 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-10-19 23:29:57,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:57,507 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:57,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:57,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1033562024, now seen corresponding path program 1 times [2020-10-19 23:29:57,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:57,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555532867] [2020-10-19 23:29:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:29:57,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555532867] [2020-10-19 23:29:57,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:57,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:57,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289647637] [2020-10-19 23:29:57,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:57,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:57,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:57,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:57,722 INFO L87 Difference]: Start difference. First operand 2140 states and 2378 transitions. Second operand 3 states. [2020-10-19 23:29:58,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:58,467 INFO L93 Difference]: Finished difference Result 4456 states and 5046 transitions. [2020-10-19 23:29:58,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:58,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 366 [2020-10-19 23:29:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:58,480 INFO L225 Difference]: With dead ends: 4456 [2020-10-19 23:29:58,480 INFO L226 Difference]: Without dead ends: 2674 [2020-10-19 23:29:58,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:58,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-19 23:29:58,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-19 23:29:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-19 23:29:58,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2787 transitions. [2020-10-19 23:29:58,527 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2787 transitions. Word has length 366 [2020-10-19 23:29:58,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:58,528 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2787 transitions. [2020-10-19 23:29:58,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2787 transitions. [2020-10-19 23:29:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-10-19 23:29:58,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:58,535 INFO L422 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:58,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:29:58,535 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:58,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1434377727, now seen corresponding path program 1 times [2020-10-19 23:29:58,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:58,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254061158] [2020-10-19 23:29:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:29:58,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254061158] [2020-10-19 23:29:58,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:58,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:58,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015891601] [2020-10-19 23:29:58,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:58,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:58,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:58,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:58,778 INFO L87 Difference]: Start difference. First operand 2496 states and 2787 transitions. Second operand 3 states. [2020-10-19 23:29:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:59,540 INFO L93 Difference]: Finished difference Result 3388 states and 3849 transitions. [2020-10-19 23:29:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:59,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2020-10-19 23:29:59,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:59,562 INFO L225 Difference]: With dead ends: 3388 [2020-10-19 23:29:59,562 INFO L226 Difference]: Without dead ends: 3386 [2020-10-19 23:29:59,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-10-19 23:29:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 2852. [2020-10-19 23:29:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-10-19 23:29:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3253 transitions. [2020-10-19 23:29:59,617 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3253 transitions. Word has length 373 [2020-10-19 23:29:59,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:59,618 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3253 transitions. [2020-10-19 23:29:59,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:59,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3253 transitions. [2020-10-19 23:29:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-10-19 23:29:59,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:59,627 INFO L422 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:59,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:29:59,628 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:59,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:59,630 INFO L82 PathProgramCache]: Analyzing trace with hash -411883037, now seen corresponding path program 1 times [2020-10-19 23:29:59,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:59,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087825008] [2020-10-19 23:29:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 569 proven. 130 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 23:30:00,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087825008] [2020-10-19 23:30:00,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322155526] [2020-10-19 23:30:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 23:30:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:00,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:30:00,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-19 23:30:00,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:00,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-10-19 23:30:00,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787704633] [2020-10-19 23:30:00,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:00,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:00,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:00,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:00,619 INFO L87 Difference]: Start difference. First operand 2852 states and 3253 transitions. Second operand 3 states. [2020-10-19 23:30:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:01,326 INFO L93 Difference]: Finished difference Result 5524 states and 6328 transitions. [2020-10-19 23:30:01,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:01,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2020-10-19 23:30:01,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:01,358 INFO L225 Difference]: With dead ends: 5524 [2020-10-19 23:30:01,358 INFO L226 Difference]: Without dead ends: 2852 [2020-10-19 23:30:01,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:01,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-19 23:30:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2020-10-19 23:30:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-10-19 23:30:01,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2831 transitions. [2020-10-19 23:30:01,410 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2831 transitions. Word has length 450 [2020-10-19 23:30:01,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:01,411 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2831 transitions. [2020-10-19 23:30:01,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:01,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2831 transitions. [2020-10-19 23:30:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-10-19 23:30:01,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:01,415 INFO L422 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:01,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:01,629 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:01,630 INFO L82 PathProgramCache]: Analyzing trace with hash 180954492, now seen corresponding path program 1 times [2020-10-19 23:30:01,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:01,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442444992] [2020-10-19 23:30:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-19 23:30:01,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442444992] [2020-10-19 23:30:01,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:01,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:01,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048696127] [2020-10-19 23:30:01,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:01,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:01,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:01,951 INFO L87 Difference]: Start difference. First operand 2674 states and 2831 transitions. Second operand 3 states. [2020-10-19 23:30:02,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:02,565 INFO L93 Difference]: Finished difference Result 5702 states and 6077 transitions. [2020-10-19 23:30:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:02,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2020-10-19 23:30:02,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:02,583 INFO L225 Difference]: With dead ends: 5702 [2020-10-19 23:30:02,583 INFO L226 Difference]: Without dead ends: 3386 [2020-10-19 23:30:02,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:02,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-10-19 23:30:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2020-10-19 23:30:02,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-19 23:30:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3178 transitions. [2020-10-19 23:30:02,641 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3178 transitions. Word has length 450 [2020-10-19 23:30:02,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:02,642 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3178 transitions. [2020-10-19 23:30:02,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:02,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3178 transitions. [2020-10-19 23:30:02,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2020-10-19 23:30:02,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:02,649 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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] [2020-10-19 23:30:02,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:30:02,650 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:02,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:02,650 INFO L82 PathProgramCache]: Analyzing trace with hash -809086369, now seen corresponding path program 1 times [2020-10-19 23:30:02,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:02,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781281663] [2020-10-19 23:30:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 934 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-10-19 23:30:03,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781281663] [2020-10-19 23:30:03,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:03,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:03,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599593224] [2020-10-19 23:30:03,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:03,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:03,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:03,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:03,199 INFO L87 Difference]: Start difference. First operand 3030 states and 3178 transitions. Second operand 3 states. [2020-10-19 23:30:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:03,873 INFO L93 Difference]: Finished difference Result 6058 states and 6368 transitions. [2020-10-19 23:30:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:03,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 646 [2020-10-19 23:30:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:03,885 INFO L225 Difference]: With dead ends: 6058 [2020-10-19 23:30:03,885 INFO L226 Difference]: Without dead ends: 3386 [2020-10-19 23:30:03,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-10-19 23:30:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-10-19 23:30:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:30:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3539 transitions. [2020-10-19 23:30:03,937 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3539 transitions. Word has length 646 [2020-10-19 23:30:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:03,938 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3539 transitions. [2020-10-19 23:30:03,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3539 transitions. [2020-10-19 23:30:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-10-19 23:30:03,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:03,947 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-19 23:30:03,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 23:30:03,947 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:03,948 INFO L82 PathProgramCache]: Analyzing trace with hash -259304175, now seen corresponding path program 2 times [2020-10-19 23:30:03,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:03,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335357977] [2020-10-19 23:30:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 1207 proven. 68 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-10-19 23:30:04,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335357977] [2020-10-19 23:30:04,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736253410] [2020-10-19 23:30:04,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 23:30:05,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 23:30:05,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 23:30:05,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 23:30:05,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 1072 proven. 203 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-10-19 23:30:06,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:30:06,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 23:30:06,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338533558] [2020-10-19 23:30:06,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:30:06,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:06,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:30:06,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:06,012 INFO L87 Difference]: Start difference. First operand 3386 states and 3539 transitions. Second operand 7 states. [2020-10-19 23:30:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:07,691 INFO L93 Difference]: Finished difference Result 7180 states and 7501 transitions. [2020-10-19 23:30:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 23:30:07,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 752 [2020-10-19 23:30:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:07,708 INFO L225 Difference]: With dead ends: 7180 [2020-10-19 23:30:07,708 INFO L226 Difference]: Without dead ends: 3974 [2020-10-19 23:30:07,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-19 23:30:07,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2020-10-19 23:30:07,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3208. [2020-10-19 23:30:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-10-19 23:30:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3357 transitions. [2020-10-19 23:30:07,757 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3357 transitions. Word has length 752 [2020-10-19 23:30:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:07,757 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3357 transitions. [2020-10-19 23:30:07,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:30:07,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3357 transitions. [2020-10-19 23:30:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-10-19 23:30:07,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:07,765 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:30:07,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-19 23:30:07,981 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:07,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:07,982 INFO L82 PathProgramCache]: Analyzing trace with hash -571883096, now seen corresponding path program 1 times [2020-10-19 23:30:07,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:07,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523642209] [2020-10-19 23:30:07,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:08,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 1196 proven. 93 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-10-19 23:30:08,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523642209] [2020-10-19 23:30:08,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848484197] [2020-10-19 23:30:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:09,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:30:09,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 1289 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-10-19 23:30:09,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:09,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:30:09,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873189889] [2020-10-19 23:30:09,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:09,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:09,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:09,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:30:09,600 INFO L87 Difference]: Start difference. First operand 3208 states and 3357 transitions. Second operand 3 states. [2020-10-19 23:30:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:10,252 INFO L93 Difference]: Finished difference Result 6236 states and 6533 transitions. [2020-10-19 23:30:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:10,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 759 [2020-10-19 23:30:10,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:10,261 INFO L225 Difference]: With dead ends: 6236 [2020-10-19 23:30:10,261 INFO L226 Difference]: Without dead ends: 3208 [2020-10-19 23:30:10,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:30:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-19 23:30:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-10-19 23:30:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-10-19 23:30:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3343 transitions. [2020-10-19 23:30:10,303 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3343 transitions. Word has length 759 [2020-10-19 23:30:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:10,304 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3343 transitions. [2020-10-19 23:30:10,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3343 transitions. [2020-10-19 23:30:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-10-19 23:30:10,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:10,312 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-10-19 23:30:10,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:10,526 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:10,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 429580071, now seen corresponding path program 1 times [2020-10-19 23:30:10,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:10,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062088483] [2020-10-19 23:30:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-19 23:30:11,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062088483] [2020-10-19 23:30:11,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583946799] [2020-10-19 23:30:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:11,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:30:11,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-19 23:30:12,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:30:12,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 23:30:12,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849416419] [2020-10-19 23:30:12,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:12,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:12,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:12,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:12,091 INFO L87 Difference]: Start difference. First operand 3208 states and 3343 transitions. Second operand 4 states. [2020-10-19 23:30:13,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:13,248 INFO L93 Difference]: Finished difference Result 6770 states and 7089 transitions. [2020-10-19 23:30:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:13,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 785 [2020-10-19 23:30:13,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:13,258 INFO L225 Difference]: With dead ends: 6770 [2020-10-19 23:30:13,258 INFO L226 Difference]: Without dead ends: 3742 [2020-10-19 23:30:13,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-19 23:30:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2020-10-19 23:30:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-10-19 23:30:13,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3914 transitions. [2020-10-19 23:30:13,305 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3914 transitions. Word has length 785 [2020-10-19 23:30:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:13,306 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3914 transitions. [2020-10-19 23:30:13,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:13,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3914 transitions. [2020-10-19 23:30:13,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2020-10-19 23:30:13,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:13,316 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-10-19 23:30:13,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-19 23:30:13,517 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:13,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:13,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2017812502, now seen corresponding path program 1 times [2020-10-19 23:30:13,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:13,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229231921] [2020-10-19 23:30:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 1470 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2020-10-19 23:30:13,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229231921] [2020-10-19 23:30:13,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:13,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:13,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880230525] [2020-10-19 23:30:13,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:13,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:13,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:13,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:13,988 INFO L87 Difference]: Start difference. First operand 3742 states and 3914 transitions. Second operand 3 states. [2020-10-19 23:30:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:14,725 INFO L93 Difference]: Finished difference Result 8194 states and 8588 transitions. [2020-10-19 23:30:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:14,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 857 [2020-10-19 23:30:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:14,736 INFO L225 Difference]: With dead ends: 8194 [2020-10-19 23:30:14,736 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:14,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-10-19 23:30:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-10-19 23:30:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4644 transitions. [2020-10-19 23:30:14,814 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4644 transitions. Word has length 857 [2020-10-19 23:30:14,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:14,816 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4644 transitions. [2020-10-19 23:30:14,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4644 transitions. [2020-10-19 23:30:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2020-10-19 23:30:14,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:14,836 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-10-19 23:30:14,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 23:30:14,836 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:14,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:14,837 INFO L82 PathProgramCache]: Analyzing trace with hash -727352451, now seen corresponding path program 1 times [2020-10-19 23:30:14,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:14,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867871842] [2020-10-19 23:30:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2301 backedges. 1620 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2020-10-19 23:30:15,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867871842] [2020-10-19 23:30:15,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:15,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:15,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188191399] [2020-10-19 23:30:15,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:15,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:15,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:15,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:15,574 INFO L87 Difference]: Start difference. First operand 4454 states and 4644 transitions. Second operand 3 states. [2020-10-19 23:30:16,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:16,264 INFO L93 Difference]: Finished difference Result 9262 states and 9667 transitions. [2020-10-19 23:30:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:16,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 875 [2020-10-19 23:30:16,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:16,274 INFO L225 Difference]: With dead ends: 9262 [2020-10-19 23:30:16,274 INFO L226 Difference]: Without dead ends: 4988 [2020-10-19 23:30:16,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:16,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-19 23:30:16,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2020-10-19 23:30:16,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-10-19 23:30:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5178 transitions. [2020-10-19 23:30:16,345 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5178 transitions. Word has length 875 [2020-10-19 23:30:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:16,346 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5178 transitions. [2020-10-19 23:30:16,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5178 transitions. [2020-10-19 23:30:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2020-10-19 23:30:16,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:16,358 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-19 23:30:16,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 23:30:16,359 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:16,360 INFO L82 PathProgramCache]: Analyzing trace with hash 586268936, now seen corresponding path program 1 times [2020-10-19 23:30:16,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:16,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816314959] [2020-10-19 23:30:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:17,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2515 backedges. 1702 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2020-10-19 23:30:17,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816314959] [2020-10-19 23:30:17,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:17,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:17,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98064959] [2020-10-19 23:30:17,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:17,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:17,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:17,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:17,217 INFO L87 Difference]: Start difference. First operand 4988 states and 5178 transitions. Second operand 3 states. [2020-10-19 23:30:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:17,872 INFO L93 Difference]: Finished difference Result 9796 states and 10176 transitions. [2020-10-19 23:30:17,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:17,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 914 [2020-10-19 23:30:17,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:17,882 INFO L225 Difference]: With dead ends: 9796 [2020-10-19 23:30:17,883 INFO L226 Difference]: Without dead ends: 4988 [2020-10-19 23:30:17,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-19 23:30:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2020-10-19 23:30:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-10-19 23:30:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4955 transitions. [2020-10-19 23:30:17,952 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4955 transitions. Word has length 914 [2020-10-19 23:30:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:17,953 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 4955 transitions. [2020-10-19 23:30:17,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4955 transitions. [2020-10-19 23:30:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2020-10-19 23:30:17,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:17,967 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-10-19 23:30:17,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 23:30:17,967 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:17,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:17,968 INFO L82 PathProgramCache]: Analyzing trace with hash -402961606, now seen corresponding path program 1 times [2020-10-19 23:30:17,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:17,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963513415] [2020-10-19 23:30:17,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1865 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2020-10-19 23:30:18,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963513415] [2020-10-19 23:30:18,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777816477] [2020-10-19 23:30:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:19,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 23:30:19,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:19,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:30:19,103 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:30:19,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:30:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1578 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2020-10-19 23:30:22,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:22,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-10-19 23:30:22,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886402281] [2020-10-19 23:30:22,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:22,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:22,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:22,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:22,194 INFO L87 Difference]: Start difference. First operand 4810 states and 4955 transitions. Second operand 4 states. [2020-10-19 23:30:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:23,950 INFO L93 Difference]: Finished difference Result 10152 states and 10465 transitions. [2020-10-19 23:30:23,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:23,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 952 [2020-10-19 23:30:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:23,959 INFO L225 Difference]: With dead ends: 10152 [2020-10-19 23:30:23,960 INFO L226 Difference]: Without dead ends: 5522 [2020-10-19 23:30:23,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 951 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2020-10-19 23:30:24,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5166. [2020-10-19 23:30:24,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5166 states. [2020-10-19 23:30:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5314 transitions. [2020-10-19 23:30:24,063 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5314 transitions. Word has length 952 [2020-10-19 23:30:24,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:24,064 INFO L481 AbstractCegarLoop]: Abstraction has 5166 states and 5314 transitions. [2020-10-19 23:30:24,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5314 transitions. [2020-10-19 23:30:24,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2020-10-19 23:30:24,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:24,078 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-19 23:30:24,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:24,295 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:24,296 INFO L82 PathProgramCache]: Analyzing trace with hash 434530347, now seen corresponding path program 1 times [2020-10-19 23:30:24,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:24,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275361464] [2020-10-19 23:30:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:26,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3420 backedges. 1737 proven. 392 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2020-10-19 23:30:26,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275361464] [2020-10-19 23:30:26,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10757543] [2020-10-19 23:30:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:26,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:30:26,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3420 backedges. 2129 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2020-10-19 23:30:27,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:27,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:30:27,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514560099] [2020-10-19 23:30:27,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:27,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:27,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:27,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:27,336 INFO L87 Difference]: Start difference. First operand 5166 states and 5314 transitions. Second operand 4 states. [2020-10-19 23:30:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:28,344 INFO L93 Difference]: Finished difference Result 10152 states and 10447 transitions. [2020-10-19 23:30:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:28,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1083 [2020-10-19 23:30:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:28,349 INFO L225 Difference]: With dead ends: 10152 [2020-10-19 23:30:28,350 INFO L226 Difference]: Without dead ends: 4988 [2020-10-19 23:30:28,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1081 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-19 23:30:28,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2020-10-19 23:30:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-10-19 23:30:28,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5131 transitions. [2020-10-19 23:30:28,398 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5131 transitions. Word has length 1083 [2020-10-19 23:30:28,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:28,399 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5131 transitions. [2020-10-19 23:30:28,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:28,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5131 transitions. [2020-10-19 23:30:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1113 [2020-10-19 23:30:28,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:28,413 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-19 23:30:28,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:28,627 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:28,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:28,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1605957264, now seen corresponding path program 1 times [2020-10-19 23:30:28,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:28,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924122414] [2020-10-19 23:30:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3504 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 1798 trivial. 0 not checked. [2020-10-19 23:30:29,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924122414] [2020-10-19 23:30:29,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:29,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:29,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949282256] [2020-10-19 23:30:29,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:29,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:29,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:29,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:29,470 INFO L87 Difference]: Start difference. First operand 4988 states and 5131 transitions. Second operand 3 states. [2020-10-19 23:30:30,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:30,126 INFO L93 Difference]: Finished difference Result 9796 states and 10081 transitions. [2020-10-19 23:30:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:30,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1112 [2020-10-19 23:30:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:30,131 INFO L225 Difference]: With dead ends: 9796 [2020-10-19 23:30:30,132 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:30,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:30,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:30,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2020-10-19 23:30:30,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-19 23:30:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4726 transitions. [2020-10-19 23:30:30,175 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4726 transitions. Word has length 1112 [2020-10-19 23:30:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:30,176 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4726 transitions. [2020-10-19 23:30:30,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4726 transitions. [2020-10-19 23:30:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1193 [2020-10-19 23:30:30,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:30,190 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:30,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 23:30:30,191 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:30,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:30,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1731884772, now seen corresponding path program 1 times [2020-10-19 23:30:30,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:30,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555577516] [2020-10-19 23:30:30,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4677 backedges. 1982 proven. 0 refuted. 0 times theorem prover too weak. 2695 trivial. 0 not checked. [2020-10-19 23:30:31,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555577516] [2020-10-19 23:30:31,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:31,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:31,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543807306] [2020-10-19 23:30:31,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:31,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:31,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:31,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:31,240 INFO L87 Difference]: Start difference. First operand 4632 states and 4726 transitions. Second operand 3 states. [2020-10-19 23:30:31,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:31,867 INFO L93 Difference]: Finished difference Result 9084 states and 9271 transitions. [2020-10-19 23:30:31,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:31,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1192 [2020-10-19 23:30:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:31,873 INFO L225 Difference]: With dead ends: 9084 [2020-10-19 23:30:31,874 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:31,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:31,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2020-10-19 23:30:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-19 23:30:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4722 transitions. [2020-10-19 23:30:31,910 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4722 transitions. Word has length 1192 [2020-10-19 23:30:31,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:31,911 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4722 transitions. [2020-10-19 23:30:31,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4722 transitions. [2020-10-19 23:30:31,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1613 [2020-10-19 23:30:31,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:31,927 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:31,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 23:30:31,928 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:31,928 INFO L82 PathProgramCache]: Analyzing trace with hash -337433786, now seen corresponding path program 1 times [2020-10-19 23:30:31,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:31,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567573113] [2020-10-19 23:30:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8354 backedges. 1578 proven. 0 refuted. 0 times theorem prover too weak. 6776 trivial. 0 not checked. [2020-10-19 23:30:33,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567573113] [2020-10-19 23:30:33,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:33,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:33,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249388982] [2020-10-19 23:30:33,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:33,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:33,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:33,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:33,731 INFO L87 Difference]: Start difference. First operand 4632 states and 4722 transitions. Second operand 3 states. [2020-10-19 23:30:34,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:34,354 INFO L93 Difference]: Finished difference Result 9084 states and 9263 transitions. [2020-10-19 23:30:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:34,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1612 [2020-10-19 23:30:34,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:34,359 INFO L225 Difference]: With dead ends: 9084 [2020-10-19 23:30:34,359 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:34,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:34,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-10-19 23:30:34,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-10-19 23:30:34,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4534 transitions. [2020-10-19 23:30:34,407 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4534 transitions. Word has length 1612 [2020-10-19 23:30:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:34,408 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4534 transitions. [2020-10-19 23:30:34,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4534 transitions. [2020-10-19 23:30:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1663 [2020-10-19 23:30:34,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:34,427 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:34,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-19 23:30:34,427 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:34,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:34,428 INFO L82 PathProgramCache]: Analyzing trace with hash 240964685, now seen corresponding path program 1 times [2020-10-19 23:30:34,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:34,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800633109] [2020-10-19 23:30:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 8507 backedges. 1838 proven. 1045 refuted. 0 times theorem prover too weak. 5624 trivial. 0 not checked. [2020-10-19 23:30:37,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800633109] [2020-10-19 23:30:37,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622269074] [2020-10-19 23:30:37,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:37,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:30:37,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8507 backedges. 2883 proven. 0 refuted. 0 times theorem prover too weak. 5624 trivial. 0 not checked. [2020-10-19 23:30:38,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:38,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:30:38,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054158565] [2020-10-19 23:30:38,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:38,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:38,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:38,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:30:38,956 INFO L87 Difference]: Start difference. First operand 4454 states and 4534 transitions. Second operand 3 states. [2020-10-19 23:30:39,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:39,584 INFO L93 Difference]: Finished difference Result 8906 states and 9069 transitions. [2020-10-19 23:30:39,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:39,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1662 [2020-10-19 23:30:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:39,589 INFO L225 Difference]: With dead ends: 8906 [2020-10-19 23:30:39,589 INFO L226 Difference]: Without dead ends: 3564 [2020-10-19 23:30:39,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1665 GetRequests, 1661 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:30:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-10-19 23:30:39,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2020-10-19 23:30:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-10-19 23:30:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3619 transitions. [2020-10-19 23:30:39,622 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3619 transitions. Word has length 1662 [2020-10-19 23:30:39,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:39,622 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3619 transitions. [2020-10-19 23:30:39,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3619 transitions. [2020-10-19 23:30:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1734 [2020-10-19 23:30:39,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:39,641 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:39,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:39,855 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:39,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:39,856 INFO L82 PathProgramCache]: Analyzing trace with hash -583744593, now seen corresponding path program 1 times [2020-10-19 23:30:39,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:39,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111140475] [2020-10-19 23:30:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 9783 backedges. 1707 proven. 0 refuted. 0 times theorem prover too weak. 8076 trivial. 0 not checked. [2020-10-19 23:30:42,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111140475] [2020-10-19 23:30:42,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:42,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:30:42,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923707371] [2020-10-19 23:30:42,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 23:30:42,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:42,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 23:30:42,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:30:42,583 INFO L87 Difference]: Start difference. First operand 3564 states and 3619 transitions. Second operand 5 states. [2020-10-19 23:30:43,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:43,692 INFO L93 Difference]: Finished difference Result 4647 states and 4727 transitions. [2020-10-19 23:30:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 23:30:43,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1733 [2020-10-19 23:30:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:43,698 INFO L225 Difference]: With dead ends: 4647 [2020-10-19 23:30:43,698 INFO L226 Difference]: Without dead ends: 4454 [2020-10-19 23:30:43,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:30:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-10-19 23:30:43,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-10-19 23:30:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-19 23:30:43,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4349 transitions. [2020-10-19 23:30:43,740 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4349 transitions. Word has length 1733 [2020-10-19 23:30:43,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:43,741 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4349 transitions. [2020-10-19 23:30:43,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 23:30:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4349 transitions. [2020-10-19 23:30:43,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1739 [2020-10-19 23:30:43,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:43,759 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:43,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-19 23:30:43,759 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:43,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1530590678, now seen corresponding path program 1 times [2020-10-19 23:30:43,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:43,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981595937] [2020-10-19 23:30:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9805 backedges. 6650 proven. 0 refuted. 0 times theorem prover too weak. 3155 trivial. 0 not checked. [2020-10-19 23:30:45,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981595937] [2020-10-19 23:30:45,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:45,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:30:45,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038452056] [2020-10-19 23:30:45,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:45,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:45,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:45,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:45,844 INFO L87 Difference]: Start difference. First operand 4276 states and 4349 transitions. Second operand 4 states. [2020-10-19 23:30:46,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:46,988 INFO L93 Difference]: Finished difference Result 8016 states and 8147 transitions. [2020-10-19 23:30:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:46,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1738 [2020-10-19 23:30:46,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:46,992 INFO L225 Difference]: With dead ends: 8016 [2020-10-19 23:30:46,992 INFO L226 Difference]: Without dead ends: 4098 [2020-10-19 23:30:46,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-19 23:30:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-10-19 23:30:47,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-10-19 23:30:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3784 transitions. [2020-10-19 23:30:47,023 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3784 transitions. Word has length 1738 [2020-10-19 23:30:47,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:47,023 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3784 transitions. [2020-10-19 23:30:47,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3784 transitions. [2020-10-19 23:30:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2036 [2020-10-19 23:30:47,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:47,047 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:47,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-19 23:30:47,047 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:47,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:47,048 INFO L82 PathProgramCache]: Analyzing trace with hash -293155404, now seen corresponding path program 1 times [2020-10-19 23:30:47,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:47,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702977006] [2020-10-19 23:30:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 13209 backedges. 1965 proven. 0 refuted. 0 times theorem prover too weak. 11244 trivial. 0 not checked. [2020-10-19 23:30:49,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702977006] [2020-10-19 23:30:49,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:49,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:30:49,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512172898] [2020-10-19 23:30:49,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:49,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:49,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:49,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:49,220 INFO L87 Difference]: Start difference. First operand 3742 states and 3784 transitions. Second operand 4 states. [2020-10-19 23:30:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:50,010 INFO L93 Difference]: Finished difference Result 3755 states and 3797 transitions. [2020-10-19 23:30:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:50,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2035 [2020-10-19 23:30:50,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:50,014 INFO L225 Difference]: With dead ends: 3755 [2020-10-19 23:30:50,014 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:30:50,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:50,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:30:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:30:50,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:30:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:30:50,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2035 [2020-10-19 23:30:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:50,017 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:30:50,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:30:50,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:30:50,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-19 23:30:50,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:30:50,190 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 136 [2020-10-19 23:30:50,307 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 136 [2020-10-19 23:30:51,560 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2020-10-19 23:30:52,777 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2020-10-19 23:30:52,782 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-19 23:30:52,782 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:30:52,783 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:30:52,783 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:30:52,783 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-19 23:30:52,783 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-19 23:30:52,783 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-19 23:30:52,783 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:30:52,784 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-19 23:30:52,785 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-19 23:30:52,785 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-19 23:30:52,785 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-19 23:30:52,786 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,786 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,786 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,787 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-19 23:30:52,787 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-19 23:30:52,787 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:30:52,787 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:30:52,787 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:30:52,787 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-19 23:30:52,788 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:30:52,789 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:30:52,789 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:30:52,789 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-19 23:30:52,789 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-19 23:30:52,789 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-19 23:30:52,789 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-19 23:30:52,790 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-19 23:30:52,790 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,790 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,790 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,790 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-19 23:30:52,791 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:30:52,791 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:30:52,791 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:30:52,791 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-19 23:30:52,791 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-19 23:30:52,792 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-19 23:30:52,792 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,792 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,792 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,792 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-19 23:30:52,792 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:30:52,793 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:30:52,793 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:30:52,793 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-19 23:30:52,793 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-19 23:30:52,793 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-19 23:30:52,794 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-19 23:30:52,794 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-19 23:30:52,794 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,794 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,794 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,794 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-19 23:30:52,795 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:30:52,795 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:30:52,795 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:30:52,795 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-19 23:30:52,795 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-19 23:30:52,795 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:30:52,796 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,797 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,798 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,799 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:30:52,800 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:30:52,800 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-19 23:30:52,800 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-19 23:30:52,800 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:30:52,800 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:30:52,801 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-19 23:30:52,802 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-19 23:30:52,803 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,804 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse13 (+ ~a12~0 43))) (let ((.cse0 (= ~a21~0 10)) (.cse12 (= ~a15~0 8)) (.cse4 (<= 10 ~a21~0)) (.cse9 (<= 9 ~a21~0)) (.cse8 (<= ~a21~0 9)) (.cse15 (<= ~a12~0 76)) (.cse5 (<= 7 ~a21~0)) (.cse10 (<= ~a15~0 7)) (.cse6 (< 0 .cse13)) (.cse3 (<= 9 ~a15~0)) (.cse17 (<= ~a21~0 8)) (.cse7 (<= ~a15~0 8)) (.cse11 (<= ~a24~0 1)) (.cse16 (<= 8 ~a21~0)) (.cse14 (< 80 ~a12~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a12~0 11)) (.cse18 (<= ~a21~0 6)) (.cse19 (<= ~a15~0 6))) (or (and .cse0 (<= (+ ~a12~0 397559) 0) .cse1) (and .cse2 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse1 .cse7 .cse8) (and .cse9 .cse10 .cse11 .cse8) (and .cse0 .cse12 (<= .cse13 0) .cse1) (and .cse11 .cse14 .cse7 .cse4) (and .cse6 .cse2 .cse12 .cse1 .cse4) (and .cse9 .cse1 .cse7 .cse8 .cse15) (and .cse16 .cse1 .cse17 .cse15) (and .cse5 .cse10 .cse11 .cse17) (and .cse10 .cse6 .cse11 .cse2 .cse17) (and .cse14 .cse1 .cse3 (<= ~a12~0 599999)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse7 .cse17) (and .cse11 .cse14 .cse7 .cse18) (and .cse11 .cse19) (and .cse16 .cse14 .cse1 (exists ((aux_div_v_~a12~0_439_31 Int) (aux_div_aux_mod_v_~a12~0_439_31_31 Int)) (let ((.cse21 (* 5 aux_div_aux_mod_v_~a12~0_439_31_31))) (let ((.cse20 (+ (* 5 aux_div_v_~a12~0_439_31) .cse21))) (and (<= .cse20 366413) (<= 0 .cse21) (< .cse21 5) (<= ~a12~0 aux_div_v_~a12~0_439_31) (< 366344 .cse20)))))) (and .cse2 .cse18 .cse19)))) [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-19 23:30:52,805 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:30:52,806 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:30:52,807 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,808 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-19 23:30:52,808 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse13 (+ ~a12~0 43))) (let ((.cse0 (= ~a21~0 10)) (.cse12 (= ~a15~0 8)) (.cse4 (<= 10 ~a21~0)) (.cse9 (<= 9 ~a21~0)) (.cse8 (<= ~a21~0 9)) (.cse15 (<= ~a12~0 76)) (.cse5 (<= 7 ~a21~0)) (.cse10 (<= ~a15~0 7)) (.cse6 (< 0 .cse13)) (.cse3 (<= 9 ~a15~0)) (.cse17 (<= ~a21~0 8)) (.cse7 (<= ~a15~0 8)) (.cse11 (<= ~a24~0 1)) (.cse16 (<= 8 ~a21~0)) (.cse14 (< 80 ~a12~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a12~0 11)) (.cse18 (<= ~a21~0 6)) (.cse19 (<= ~a15~0 6))) (or (and .cse0 (<= (+ ~a12~0 397559) 0) .cse1) (and .cse2 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse1 .cse7 .cse8) (and .cse9 .cse10 .cse11 .cse8) (and .cse0 .cse12 (<= .cse13 0) .cse1) (and .cse11 .cse14 .cse7 .cse4) (and .cse6 .cse2 .cse12 .cse1 .cse4) (and .cse9 .cse1 .cse7 .cse8 .cse15) (and .cse16 .cse1 .cse17 .cse15) (and .cse5 .cse10 .cse11 .cse17) (and .cse10 .cse6 .cse11 .cse2 .cse17) (and .cse14 .cse1 .cse3 (<= ~a12~0 599999)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse7 .cse17) (and .cse11 .cse14 .cse7 .cse18) (and .cse11 .cse19) (and .cse16 .cse14 .cse1 (exists ((aux_div_v_~a12~0_439_31 Int) (aux_div_aux_mod_v_~a12~0_439_31_31 Int)) (let ((.cse21 (* 5 aux_div_aux_mod_v_~a12~0_439_31_31))) (let ((.cse20 (+ (* 5 aux_div_v_~a12~0_439_31) .cse21))) (and (<= .cse20 366413) (<= 0 .cse21) (< .cse21 5) (<= ~a12~0 aux_div_v_~a12~0_439_31) (< 366344 .cse20)))))) (and .cse2 .cse18 .cse19)))) [2020-10-19 23:30:52,808 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-19 23:30:52,808 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-19 23:30:52,808 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:30:52,809 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-19 23:30:52,810 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:30:52,811 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,812 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:52,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,842 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,844 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,844 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:52,844 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:52,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:30:52 BoogieIcfgContainer [2020-10-19 23:30:52,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:30:52,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:30:52,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:30:52,848 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:30:52,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:29:45" (3/4) ... [2020-10-19 23:30:52,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:30:52,885 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:30:52,887 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:30:52,888 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:30:52,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:30:52,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) [2020-10-19 23:30:52,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) [2020-10-19 23:30:53,060 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:30:53,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:30:53,062 INFO L168 Benchmark]: Toolchain (without parser) took 70276.28 ms. Allocated memory was 43.5 MB in the beginning and 2.7 GB in the end (delta: 2.7 GB). Free memory was 22.6 MB in the beginning and 835.2 MB in the end (delta: -812.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,063 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 32.5 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 52.8 kB). Peak memory consumption was 52.8 kB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.50 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.7 MB in the beginning and 18.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.08 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 17.7 MB in the beginning and 24.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,064 INFO L168 Benchmark]: Boogie Preprocessor took 86.30 ms. Allocated memory is still 46.7 MB. Free memory was 24.9 MB in the beginning and 18.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,065 INFO L168 Benchmark]: RCFGBuilder took 1680.75 ms. Allocated memory was 46.7 MB in the beginning and 60.8 MB in the end (delta: 14.2 MB). Free memory was 18.3 MB in the beginning and 30.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,065 INFO L168 Benchmark]: TraceAbstraction took 67326.72 ms. Allocated memory was 60.8 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 30.0 MB in the beginning and 887.1 MB in the end (delta: -857.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,065 INFO L168 Benchmark]: Witness Printer took 212.93 ms. Allocated memory is still 2.7 GB. Free memory was 887.1 MB in the beginning and 835.2 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:53,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 32.5 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 52.8 kB). Peak memory consumption was 52.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 824.50 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.7 MB in the beginning and 18.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 134.08 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 17.7 MB in the beginning and 24.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 86.30 ms. Allocated memory is still 46.7 MB. Free memory was 24.9 MB in the beginning and 18.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1680.75 ms. Allocated memory was 46.7 MB in the beginning and 60.8 MB in the end (delta: 14.2 MB). Free memory was 18.3 MB in the beginning and 30.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 67326.72 ms. Allocated memory was 60.8 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 30.0 MB in the beginning and 887.1 MB in the end (delta: -857.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 14.3 GB. * Witness Printer took 212.93 ms. Allocated memory is still 2.7 GB. Free memory was 887.1 MB in the beginning and 835.2 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 22]: Loop Invariant [2020-10-19 23:30:53,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] Derived loop invariant: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant [2020-10-19 23:30:53,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,088 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,088 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,088 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,088 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-10-19 23:30:53,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-10-19 23:30:53,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] Derived loop invariant: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.4s, OverallIterations: 27, TraceHistogramMax: 17, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3005 SDtfs, 3030 SDslu, 179 SDs, 0 SdLazy, 14910 SolverSat, 1450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7550 GetRequests, 7478 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5166occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 27 MinimizatonAttempts, 4148 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 73 NumberOfFragments, 535 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6104 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2602 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 29330 NumberOfCodeBlocks, 29330 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 29293 ConstructedInterpolants, 257 QuantifiedInterpolants, 84838116 SizeOfPredicates, 3 NumberOfNonLiveVariables, 9503 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 37 InterpolantComputations, 25 PerfectInterpolantSequences, 101052/103755 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...