./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label51.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_label51.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 82ff0154a7470d81b3d77c85d39e7207f3dc786c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:29:33,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:29:33,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:29:33,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:29:33,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:29:33,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:29:33,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:29:33,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:29:33,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:29:33,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:29:33,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:29:33,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:29:33,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:29:33,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:29:33,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:29:33,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:29:33,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:29:33,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:29:33,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:29:33,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:29:33,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:29:33,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:29:33,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:29:33,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:29:33,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:29:33,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:29:33,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:29:33,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:29:33,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:29:33,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:29:33,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:29:33,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:29:33,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:29:33,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:29:33,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:29:33,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:29:33,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:29:33,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:29:33,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:29:33,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:29:33,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:29:33,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:29:33,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:29:33,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:29:33,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:29:33,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:29:33,614 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:29:33,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:29:33,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:29:33,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:29:33,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:29:33,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:29:33,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:29:33,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:29:33,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:29:33,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:29:33,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:29:33,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:29:33,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:29:33,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:29:33,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:29:33,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:29:33,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:29:33,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:29:33,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:29:33,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:29:33,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:29:33,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:29:33,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:29:33,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:29:33,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:29:33,621 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 -> 82ff0154a7470d81b3d77c85d39e7207f3dc786c [2020-10-19 23:29:33,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:29:33,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:29:33,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:29:33,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:29:33,835 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:29:33,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2020-10-19 23:29:33,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7c0677d7/062a83a1fbdb4275a028fc218d1e102a/FLAG72d7afedb [2020-10-19 23:29:34,543 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:29:34,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2020-10-19 23:29:34,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7c0677d7/062a83a1fbdb4275a028fc218d1e102a/FLAG72d7afedb [2020-10-19 23:29:34,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7c0677d7/062a83a1fbdb4275a028fc218d1e102a [2020-10-19 23:29:34,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:29:34,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:29:34,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:29:34,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:29:34,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:29:34,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:29:34" (1/1) ... [2020-10-19 23:29:34,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598b369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:34, skipping insertion in model container [2020-10-19 23:29:34,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:29:34" (1/1) ... [2020-10-19 23:29:34,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:29:34,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:29:35,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:29:35,394 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:29:35,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:29:35,560 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:29:35,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35 WrapperNode [2020-10-19 23:29:35,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:29:35,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:29:35,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:29:35,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:29:35,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:29:35,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:29:35,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:29:35,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:29:35,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (1/1) ... [2020-10-19 23:29:35,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:29:35,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:29:35,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:29:35,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:29:35,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (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 23:29:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:29:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:29:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:29:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:29:37,619 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:29:37,619 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:29:37,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:29:37 BoogieIcfgContainer [2020-10-19 23:29:37,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:29:37,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:29:37,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:29:37,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:29:37,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:29:34" (1/3) ... [2020-10-19 23:29:37,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bf2e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:29:37, skipping insertion in model container [2020-10-19 23:29:37,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:29:35" (2/3) ... [2020-10-19 23:29:37,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bf2e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:29:37, skipping insertion in model container [2020-10-19 23:29:37,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:29:37" (3/3) ... [2020-10-19 23:29:37,630 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2020-10-19 23:29:37,643 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:29:37,651 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:29:37,665 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:29:37,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:29:37,709 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:29:37,710 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:29:37,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:29:37,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:29:37,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:29:37,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:29:37,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:29:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-19 23:29:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-19 23:29:37,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:37,740 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] [2020-10-19 23:29:37,741 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2020-10-19 23:29:37,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:37,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659063858] [2020-10-19 23:29:37,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:38,032 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 23:29:38,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659063858] [2020-10-19 23:29:38,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:38,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:29:38,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205729599] [2020-10-19 23:29:38,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:38,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:38,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:38,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:38,058 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-19 23:29:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:39,301 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-10-19 23:29:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:39,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-10-19 23:29:39,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:39,321 INFO L225 Difference]: With dead ends: 670 [2020-10-19 23:29:39,321 INFO L226 Difference]: Without dead ends: 360 [2020-10-19 23:29:39,326 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 23:29:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-19 23:29:39,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-19 23:29:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-19 23:29:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2020-10-19 23:29:39,395 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 35 [2020-10-19 23:29:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:39,396 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2020-10-19 23:29:39,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2020-10-19 23:29:39,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-19 23:29:39,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:39,401 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, 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 23:29:39,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:29:39,401 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:39,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:39,402 INFO L82 PathProgramCache]: Analyzing trace with hash -255305979, now seen corresponding path program 1 times [2020-10-19 23:29:39,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:39,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660201163] [2020-10-19 23:29:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:39,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660201163] [2020-10-19 23:29:39,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:39,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:29:39,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717767851] [2020-10-19 23:29:39,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:39,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:39,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:39,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:39,561 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand 3 states. [2020-10-19 23:29:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:40,583 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2020-10-19 23:29:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:40,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-10-19 23:29:40,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:40,590 INFO L225 Difference]: With dead ends: 1074 [2020-10-19 23:29:40,591 INFO L226 Difference]: Without dead ends: 716 [2020-10-19 23:29:40,594 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 23:29:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-19 23:29:40,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-19 23:29:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-19 23:29:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-10-19 23:29:40,635 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 110 [2020-10-19 23:29:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:40,635 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-10-19 23:29:40,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-10-19 23:29:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-19 23:29:40,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:40,641 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, 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 23:29:40,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:29:40,642 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:40,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:40,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1312309583, now seen corresponding path program 1 times [2020-10-19 23:29:40,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:40,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453811128] [2020-10-19 23:29:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:40,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453811128] [2020-10-19 23:29:40,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:40,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:40,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628951982] [2020-10-19 23:29:40,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:29:40,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:40,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:29:40,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:29:40,859 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-10-19 23:29:42,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:42,411 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2020-10-19 23:29:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:29:42,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-10-19 23:29:42,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:42,422 INFO L225 Difference]: With dead ends: 1964 [2020-10-19 23:29:42,425 INFO L226 Difference]: Without dead ends: 1250 [2020-10-19 23:29:42,427 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 23:29:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-19 23:29:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-10-19 23:29:42,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-19 23:29:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-10-19 23:29:42,493 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 114 [2020-10-19 23:29:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:42,494 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-10-19 23:29:42,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:29:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-10-19 23:29:42,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-19 23:29:42,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:42,509 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, 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] [2020-10-19 23:29:42,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:29:42,510 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:42,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:42,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1923061470, now seen corresponding path program 1 times [2020-10-19 23:29:42,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:42,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899254244] [2020-10-19 23:29:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-19 23:29:42,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899254244] [2020-10-19 23:29:42,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:42,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:42,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906339109] [2020-10-19 23:29:42,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:29:42,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:42,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:29:42,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:29:42,746 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-10-19 23:29:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:43,874 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-10-19 23:29:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:29:43,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 194 [2020-10-19 23:29:43,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:43,889 INFO L225 Difference]: With dead ends: 2705 [2020-10-19 23:29:43,889 INFO L226 Difference]: Without dead ends: 1606 [2020-10-19 23:29:43,892 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 23:29:43,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-19 23:29:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-10-19 23:29:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-19 23:29:43,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-10-19 23:29:43,961 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 194 [2020-10-19 23:29:43,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:43,962 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-10-19 23:29:43,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:29:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-10-19 23:29:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-19 23:29:43,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:43,971 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:43,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:29:43,972 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:43,972 INFO L82 PathProgramCache]: Analyzing trace with hash 408850568, now seen corresponding path program 1 times [2020-10-19 23:29:43,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:43,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169446663] [2020-10-19 23:29:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:44,437 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 146 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-19 23:29:44,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169446663] [2020-10-19 23:29:44,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68333880] [2020-10-19 23:29:44,438 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 23:29:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:44,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:44,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-19 23:29:44,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:44,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:29:44,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456258861] [2020-10-19 23:29:44,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:44,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:44,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:44,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:29:44,837 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-10-19 23:29:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:45,928 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-10-19 23:29:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:45,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 321 [2020-10-19 23:29:45,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:45,940 INFO L225 Difference]: With dead ends: 3388 [2020-10-19 23:29:45,940 INFO L226 Difference]: Without dead ends: 1962 [2020-10-19 23:29:45,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 320 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 23:29:45,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-19 23:29:45,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-10-19 23:29:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-19 23:29:45,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2020-10-19 23:29:45,996 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 321 [2020-10-19 23:29:45,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:45,997 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2020-10-19 23:29:45,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2020-10-19 23:29:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-19 23:29:46,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:46,004 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, 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, 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 23:29:46,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:46,218 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:46,220 INFO L82 PathProgramCache]: Analyzing trace with hash -448790190, now seen corresponding path program 1 times [2020-10-19 23:29:46,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:46,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185281038] [2020-10-19 23:29:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 229 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:29:46,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185281038] [2020-10-19 23:29:46,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138764147] [2020-10-19 23:29:46,865 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 23:29:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:46,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:46,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-19 23:29:47,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:47,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:29:47,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522306330] [2020-10-19 23:29:47,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:47,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:47,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:47,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:29:47,123 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand 3 states. [2020-10-19 23:29:48,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:48,112 INFO L93 Difference]: Finished difference Result 4278 states and 4949 transitions. [2020-10-19 23:29:48,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:48,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-10-19 23:29:48,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:48,129 INFO L225 Difference]: With dead ends: 4278 [2020-10-19 23:29:48,129 INFO L226 Difference]: Without dead ends: 2318 [2020-10-19 23:29:48,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 324 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 23:29:48,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-10-19 23:29:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1606. [2020-10-19 23:29:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-19 23:29:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1805 transitions. [2020-10-19 23:29:48,188 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1805 transitions. Word has length 325 [2020-10-19 23:29:48,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:48,189 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1805 transitions. [2020-10-19 23:29:48,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1805 transitions. [2020-10-19 23:29:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-19 23:29:48,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:48,200 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, 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, 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 23:29:48,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:48,415 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:48,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1468164340, now seen corresponding path program 1 times [2020-10-19 23:29:48,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:48,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153783287] [2020-10-19 23:29:48,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 153 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-19 23:29:48,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153783287] [2020-10-19 23:29:48,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779630523] [2020-10-19 23:29:48,946 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 23:29:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:49,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:49,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-19 23:29:49,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:49,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 23:29:49,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808263379] [2020-10-19 23:29:49,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:49,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:49,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:49,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:29:49,214 INFO L87 Difference]: Start difference. First operand 1606 states and 1805 transitions. Second operand 3 states. [2020-10-19 23:29:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:49,988 INFO L93 Difference]: Finished difference Result 3388 states and 3919 transitions. [2020-10-19 23:29:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:49,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2020-10-19 23:29:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:50,001 INFO L225 Difference]: With dead ends: 3388 [2020-10-19 23:29:50,002 INFO L226 Difference]: Without dead ends: 2140 [2020-10-19 23:29:50,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 327 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 23:29:50,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-10-19 23:29:50,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-10-19 23:29:50,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-10-19 23:29:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2378 transitions. [2020-10-19 23:29:50,042 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2378 transitions. Word has length 328 [2020-10-19 23:29:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:50,043 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2378 transitions. [2020-10-19 23:29:50,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:50,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2378 transitions. [2020-10-19 23:29:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-19 23:29:50,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:50,050 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-10-19 23:29:50,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:50,266 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:50,267 INFO L82 PathProgramCache]: Analyzing trace with hash -824590800, now seen corresponding path program 1 times [2020-10-19 23:29:50,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:50,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521346035] [2020-10-19 23:29:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:29:50,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521346035] [2020-10-19 23:29:50,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:50,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:50,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069897565] [2020-10-19 23:29:50,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:50,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:50,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:50,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:50,469 INFO L87 Difference]: Start difference. First operand 2140 states and 2378 transitions. Second operand 3 states. [2020-10-19 23:29:51,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:51,385 INFO L93 Difference]: Finished difference Result 4990 states and 5636 transitions. [2020-10-19 23:29:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:51,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2020-10-19 23:29:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:51,401 INFO L225 Difference]: With dead ends: 4990 [2020-10-19 23:29:51,402 INFO L226 Difference]: Without dead ends: 3030 [2020-10-19 23:29:51,405 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 23:29:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-10-19 23:29:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2020-10-19 23:29:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-10-19 23:29:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2982 transitions. [2020-10-19 23:29:51,464 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2982 transitions. Word has length 352 [2020-10-19 23:29:51,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:51,465 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2982 transitions. [2020-10-19 23:29:51,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:51,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2982 transitions. [2020-10-19 23:29:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-19 23:29:51,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:51,473 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, 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, 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 23:29:51,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:29:51,474 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:51,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:51,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1143325191, now seen corresponding path program 1 times [2020-10-19 23:29:51,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:51,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691036315] [2020-10-19 23:29:51,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:29:51,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691036315] [2020-10-19 23:29:51,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:51,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:51,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942671400] [2020-10-19 23:29:51,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:51,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:51,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:51,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:51,725 INFO L87 Difference]: Start difference. First operand 2674 states and 2982 transitions. Second operand 3 states. [2020-10-19 23:29:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:52,483 INFO L93 Difference]: Finished difference Result 5880 states and 6603 transitions. [2020-10-19 23:29:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:52,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-10-19 23:29:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:52,500 INFO L225 Difference]: With dead ends: 5880 [2020-10-19 23:29:52,500 INFO L226 Difference]: Without dead ends: 3564 [2020-10-19 23:29:52,504 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 23:29:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-10-19 23:29:52,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3030. [2020-10-19 23:29:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-19 23:29:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3396 transitions. [2020-10-19 23:29:52,564 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3396 transitions. Word has length 359 [2020-10-19 23:29:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:52,565 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3396 transitions. [2020-10-19 23:29:52,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3396 transitions. [2020-10-19 23:29:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2020-10-19 23:29:52,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:52,571 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:52,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:29:52,571 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:52,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:52,572 INFO L82 PathProgramCache]: Analyzing trace with hash -980433678, now seen corresponding path program 1 times [2020-10-19 23:29:52,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:52,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413957691] [2020-10-19 23:29:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:53,175 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 584 proven. 130 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-19 23:29:53,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413957691] [2020-10-19 23:29:53,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470443138] [2020-10-19 23:29:53,177 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 23:29:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:53,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:29:53,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-10-19 23:29:53,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:53,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-10-19 23:29:53,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71363506] [2020-10-19 23:29:53,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:53,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:53,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:53,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:29:53,661 INFO L87 Difference]: Start difference. First operand 3030 states and 3396 transitions. Second operand 3 states. [2020-10-19 23:29:54,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:54,401 INFO L93 Difference]: Finished difference Result 5880 states and 6615 transitions. [2020-10-19 23:29:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:54,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 455 [2020-10-19 23:29:54,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:54,410 INFO L225 Difference]: With dead ends: 5880 [2020-10-19 23:29:54,410 INFO L226 Difference]: Without dead ends: 2852 [2020-10-19 23:29:54,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 454 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 23:29:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-19 23:29:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2020-10-19 23:29:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-19 23:29:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2609 transitions. [2020-10-19 23:29:54,454 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2609 transitions. Word has length 455 [2020-10-19 23:29:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:54,455 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2609 transitions. [2020-10-19 23:29:54,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2609 transitions. [2020-10-19 23:29:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-10-19 23:29:54,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:54,460 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, 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, 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, 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] [2020-10-19 23:29:54,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:29:54,674 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:54,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash -578629241, now seen corresponding path program 1 times [2020-10-19 23:29:54,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:54,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065086216] [2020-10-19 23:29:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2020-10-19 23:29:55,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065086216] [2020-10-19 23:29:55,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309502949] [2020-10-19 23:29:55,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 23:29:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:55,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:29:55,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:29:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2020-10-19 23:29:55,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:29:55,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:29:55,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082547754] [2020-10-19 23:29:55,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:55,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:55,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:55,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:29:55,766 INFO L87 Difference]: Start difference. First operand 2496 states and 2609 transitions. Second operand 3 states. [2020-10-19 23:29:56,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:56,340 INFO L93 Difference]: Finished difference Result 3566 states and 3700 transitions. [2020-10-19 23:29:56,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:56,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 514 [2020-10-19 23:29:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:56,356 INFO L225 Difference]: With dead ends: 3566 [2020-10-19 23:29:56,356 INFO L226 Difference]: Without dead ends: 3564 [2020-10-19 23:29:56,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:29:56,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-10-19 23:29:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 2674. [2020-10-19 23:29:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-10-19 23:29:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2794 transitions. [2020-10-19 23:29:56,423 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2794 transitions. Word has length 514 [2020-10-19 23:29:56,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:56,430 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2794 transitions. [2020-10-19 23:29:56,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2794 transitions. [2020-10-19 23:29:56,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-10-19 23:29:56,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:56,443 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, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:56,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-19 23:29:56,649 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:56,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:56,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1837611666, now seen corresponding path program 1 times [2020-10-19 23:29:56,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:56,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625294832] [2020-10-19 23:29:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 857 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-10-19 23:29:57,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625294832] [2020-10-19 23:29:57,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:57,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:57,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542469412] [2020-10-19 23:29:57,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:57,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:57,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:57,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:57,301 INFO L87 Difference]: Start difference. First operand 2674 states and 2794 transitions. Second operand 3 states. [2020-10-19 23:29:57,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:57,942 INFO L93 Difference]: Finished difference Result 6058 states and 6339 transitions. [2020-10-19 23:29:57,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:57,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 635 [2020-10-19 23:29:57,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:57,958 INFO L225 Difference]: With dead ends: 6058 [2020-10-19 23:29:57,958 INFO L226 Difference]: Without dead ends: 3386 [2020-10-19 23:29:57,961 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 23:29:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-10-19 23:29:58,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2020-10-19 23:29:58,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-19 23:29:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3166 transitions. [2020-10-19 23:29:58,019 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3166 transitions. Word has length 635 [2020-10-19 23:29:58,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:58,020 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3166 transitions. [2020-10-19 23:29:58,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3166 transitions. [2020-10-19 23:29:58,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-10-19 23:29:58,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:58,028 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:29:58,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 23:29:58,029 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:58,029 INFO L82 PathProgramCache]: Analyzing trace with hash -771161532, now seen corresponding path program 1 times [2020-10-19 23:29:58,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:58,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428210257] [2020-10-19 23:29:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:29:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 993 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:29:58,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428210257] [2020-10-19 23:29:58,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:29:58,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:29:58,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713168650] [2020-10-19 23:29:58,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:29:58,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:29:58,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:29:58,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:29:58,705 INFO L87 Difference]: Start difference. First operand 3030 states and 3166 transitions. Second operand 3 states. [2020-10-19 23:29:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:29:59,492 INFO L93 Difference]: Finished difference Result 6592 states and 6878 transitions. [2020-10-19 23:29:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:29:59,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 695 [2020-10-19 23:29:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:29:59,506 INFO L225 Difference]: With dead ends: 6592 [2020-10-19 23:29:59,506 INFO L226 Difference]: Without dead ends: 3564 [2020-10-19 23:29:59,509 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 23:29:59,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-10-19 23:29:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2020-10-19 23:29:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:29:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3527 transitions. [2020-10-19 23:29:59,557 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3527 transitions. Word has length 695 [2020-10-19 23:29:59,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:29:59,558 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3527 transitions. [2020-10-19 23:29:59,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:29:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3527 transitions. [2020-10-19 23:29:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-10-19 23:29:59,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:29:59,567 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, 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, 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, 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 23:29:59,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 23:29:59,568 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:29:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:29:59,568 INFO L82 PathProgramCache]: Analyzing trace with hash -180185874, now seen corresponding path program 1 times [2020-10-19 23:29:59,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:29:59,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153087702] [2020-10-19 23:29:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:29:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-10-19 23:30:00,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153087702] [2020-10-19 23:30:00,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856663554] [2020-10-19 23:30:00,211 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 23:30:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:00,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:30:00,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:00,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-10-19 23:30:00,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:00,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:30:00,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952298151] [2020-10-19 23:30:00,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:00,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:00,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:00,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:30:00,747 INFO L87 Difference]: Start difference. First operand 3386 states and 3527 transitions. Second operand 3 states. [2020-10-19 23:30:01,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:01,374 INFO L93 Difference]: Finished difference Result 6948 states and 7231 transitions. [2020-10-19 23:30:01,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:01,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 790 [2020-10-19 23:30:01,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:01,401 INFO L225 Difference]: With dead ends: 6948 [2020-10-19 23:30:01,402 INFO L226 Difference]: Without dead ends: 3564 [2020-10-19 23:30:01,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:30:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-10-19 23:30:01,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2020-10-19 23:30:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:30:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3504 transitions. [2020-10-19 23:30:01,462 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3504 transitions. Word has length 790 [2020-10-19 23:30:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:01,464 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3504 transitions. [2020-10-19 23:30:01,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3504 transitions. [2020-10-19 23:30:01,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2020-10-19 23:30:01,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:01,482 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, 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, 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 23:30:01,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:01,697 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:01,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1837233190, now seen corresponding path program 1 times [2020-10-19 23:30:01,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:01,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137034945] [2020-10-19 23:30:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:02,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 1688 proven. 155 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-10-19 23:30:02,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137034945] [2020-10-19 23:30:02,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406095670] [2020-10-19 23:30:02,456 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 23:30:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:02,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:30:02,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 1688 proven. 155 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-10-19 23:30:03,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:30:03,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 23:30:03,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572697755] [2020-10-19 23:30:03,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:03,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:03,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:03,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:03,048 INFO L87 Difference]: Start difference. First operand 3386 states and 3504 transitions. Second operand 4 states. [2020-10-19 23:30:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:03,980 INFO L93 Difference]: Finished difference Result 7482 states and 7749 transitions. [2020-10-19 23:30:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:03,980 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 865 [2020-10-19 23:30:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:03,989 INFO L225 Difference]: With dead ends: 7482 [2020-10-19 23:30:03,989 INFO L226 Difference]: Without dead ends: 4098 [2020-10-19 23:30:03,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 866 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 23:30:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-19 23:30:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-10-19 23:30:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-10-19 23:30:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3881 transitions. [2020-10-19 23:30:04,038 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3881 transitions. Word has length 865 [2020-10-19 23:30:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:04,039 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3881 transitions. [2020-10-19 23:30:04,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3881 transitions. [2020-10-19 23:30:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 949 [2020-10-19 23:30:04,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:04,057 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, 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, 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, 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, 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] [2020-10-19 23:30:04,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-19 23:30:04,272 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:04,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:04,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1968214841, now seen corresponding path program 1 times [2020-10-19 23:30:04,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:04,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582695849] [2020-10-19 23:30:04,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:05,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2838 backedges. 1925 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2020-10-19 23:30:05,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582695849] [2020-10-19 23:30:05,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:05,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:05,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178216575] [2020-10-19 23:30:05,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:05,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:05,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:05,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:05,059 INFO L87 Difference]: Start difference. First operand 3742 states and 3881 transitions. Second operand 3 states. [2020-10-19 23:30:05,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:05,688 INFO L93 Difference]: Finished difference Result 7838 states and 8127 transitions. [2020-10-19 23:30:05,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:05,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 948 [2020-10-19 23:30:05,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:05,698 INFO L225 Difference]: With dead ends: 7838 [2020-10-19 23:30:05,698 INFO L226 Difference]: Without dead ends: 4098 [2020-10-19 23:30:05,702 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 23:30:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-19 23:30:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-10-19 23:30:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-10-19 23:30:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4061 transitions. [2020-10-19 23:30:05,753 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4061 transitions. Word has length 948 [2020-10-19 23:30:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:05,754 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4061 transitions. [2020-10-19 23:30:05,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4061 transitions. [2020-10-19 23:30:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2020-10-19 23:30:05,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:05,770 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, 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, 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, 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 23:30:05,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 23:30:05,771 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:05,771 INFO L82 PathProgramCache]: Analyzing trace with hash 75713936, now seen corresponding path program 1 times [2020-10-19 23:30:05,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:05,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998362228] [2020-10-19 23:30:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1939 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2020-10-19 23:30:06,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998362228] [2020-10-19 23:30:06,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:06,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:06,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790003578] [2020-10-19 23:30:06,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:06,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:06,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:06,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:06,542 INFO L87 Difference]: Start difference. First operand 3920 states and 4061 transitions. Second operand 3 states. [2020-10-19 23:30:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:07,176 INFO L93 Difference]: Finished difference Result 8016 states and 8299 transitions. [2020-10-19 23:30:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:07,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 955 [2020-10-19 23:30:07,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:07,188 INFO L225 Difference]: With dead ends: 8016 [2020-10-19 23:30:07,188 INFO L226 Difference]: Without dead ends: 4098 [2020-10-19 23:30:07,193 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 23:30:07,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-19 23:30:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-10-19 23:30:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-10-19 23:30:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4054 transitions. [2020-10-19 23:30:07,241 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4054 transitions. Word has length 955 [2020-10-19 23:30:07,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:07,242 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4054 transitions. [2020-10-19 23:30:07,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:07,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4054 transitions. [2020-10-19 23:30:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2020-10-19 23:30:07,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:07,257 INFO L422 BasicCegarLoop]: trace histogram [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, 10, 10, 10, 10, 10, 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, 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, 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, 1] [2020-10-19 23:30:07,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 23:30:07,258 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:07,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:07,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2053794669, now seen corresponding path program 1 times [2020-10-19 23:30:07,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:07,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85144751] [2020-10-19 23:30:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2020-10-19 23:30:08,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85144751] [2020-10-19 23:30:08,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254582548] [2020-10-19 23:30:08,099 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 23:30:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:08,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 23:30:08,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:08,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:30:08,445 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:30:08,469 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:30:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2157 proven. 0 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2020-10-19 23:30:09,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:09,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-10-19 23:30:09,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293396255] [2020-10-19 23:30:09,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 23:30:09,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:09,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 23:30:09,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=27, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:30:09,696 INFO L87 Difference]: Start difference. First operand 3920 states and 4054 transitions. Second operand 5 states. [2020-10-19 23:30:10,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:10,863 INFO L93 Difference]: Finished difference Result 8906 states and 9203 transitions. [2020-10-19 23:30:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:10,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1032 [2020-10-19 23:30:10,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:10,875 INFO L225 Difference]: With dead ends: 8906 [2020-10-19 23:30:10,875 INFO L226 Difference]: Without dead ends: 4988 [2020-10-19 23:30:10,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 1030 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=27, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:30:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-19 23:30:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4276. [2020-10-19 23:30:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-19 23:30:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4419 transitions. [2020-10-19 23:30:10,942 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4419 transitions. Word has length 1032 [2020-10-19 23:30:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:10,943 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4419 transitions. [2020-10-19 23:30:10,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 23:30:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4419 transitions. [2020-10-19 23:30:10,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2020-10-19 23:30:10,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:10,958 INFO L422 BasicCegarLoop]: trace histogram [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, 10, 10, 10, 10, 10, 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, 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, 5, 4, 4, 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, 1] [2020-10-19 23:30:11,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-19 23:30:11,172 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:11,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:11,174 INFO L82 PathProgramCache]: Analyzing trace with hash 665437572, now seen corresponding path program 1 times [2020-10-19 23:30:11,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:11,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20302200] [2020-10-19 23:30:11,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 1700 proven. 0 refuted. 0 times theorem prover too weak. 1981 trivial. 0 not checked. [2020-10-19 23:30:12,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20302200] [2020-10-19 23:30:12,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:12,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:12,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767346174] [2020-10-19 23:30:12,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:12,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:12,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:12,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:12,218 INFO L87 Difference]: Start difference. First operand 4276 states and 4419 transitions. Second operand 3 states. [2020-10-19 23:30:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:12,927 INFO L93 Difference]: Finished difference Result 8728 states and 9015 transitions. [2020-10-19 23:30:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:12,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1065 [2020-10-19 23:30:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:12,936 INFO L225 Difference]: With dead ends: 8728 [2020-10-19 23:30:12,937 INFO L226 Difference]: Without dead ends: 4454 [2020-10-19 23:30:12,942 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 23:30:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-10-19 23:30:12,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-10-19 23:30:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-19 23:30:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4375 transitions. [2020-10-19 23:30:12,998 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4375 transitions. Word has length 1065 [2020-10-19 23:30:12,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:12,999 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4375 transitions. [2020-10-19 23:30:12,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:12,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4375 transitions. [2020-10-19 23:30:13,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1494 [2020-10-19 23:30:13,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:13,024 INFO L422 BasicCegarLoop]: trace histogram [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, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:30:13,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 23:30:13,025 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:13,026 INFO L82 PathProgramCache]: Analyzing trace with hash -2080244965, now seen corresponding path program 1 times [2020-10-19 23:30:13,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:13,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925934151] [2020-10-19 23:30:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 7035 backedges. 4438 proven. 252 refuted. 0 times theorem prover too weak. 2345 trivial. 0 not checked. [2020-10-19 23:30:16,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925934151] [2020-10-19 23:30:16,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747209184] [2020-10-19 23:30:16,015 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 23:30:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:16,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:30:16,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 7035 backedges. 2426 proven. 0 refuted. 0 times theorem prover too weak. 4609 trivial. 0 not checked. [2020-10-19 23:30:17,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:17,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:30:17,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719058622] [2020-10-19 23:30:17,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:17,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:17,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:17,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:17,421 INFO L87 Difference]: Start difference. First operand 4276 states and 4375 transitions. Second operand 3 states. [2020-10-19 23:30:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:18,074 INFO L93 Difference]: Finished difference Result 8906 states and 9108 transitions. [2020-10-19 23:30:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:18,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1493 [2020-10-19 23:30:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:18,083 INFO L225 Difference]: With dead ends: 8906 [2020-10-19 23:30:18,083 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:18,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1497 GetRequests, 1492 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:30:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2020-10-19 23:30:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-19 23:30:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4724 transitions. [2020-10-19 23:30:18,146 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4724 transitions. Word has length 1493 [2020-10-19 23:30:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:18,147 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4724 transitions. [2020-10-19 23:30:18,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4724 transitions. [2020-10-19 23:30:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2020-10-19 23:30:18,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:18,175 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, 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, 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, 11, 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, 1] [2020-10-19 23:30:18,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:18,388 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:18,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:18,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2075438937, now seen corresponding path program 1 times [2020-10-19 23:30:18,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:18,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814435843] [2020-10-19 23:30:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9366 backedges. 2557 proven. 0 refuted. 0 times theorem prover too weak. 6809 trivial. 0 not checked. [2020-10-19 23:30:20,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814435843] [2020-10-19 23:30:20,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:20,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:30:20,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331242990] [2020-10-19 23:30:20,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:20,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:20,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:20,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:30:20,358 INFO L87 Difference]: Start difference. First operand 4632 states and 4724 transitions. Second operand 3 states. [2020-10-19 23:30:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:20,952 INFO L93 Difference]: Finished difference Result 9440 states and 9625 transitions. [2020-10-19 23:30:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:20,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1692 [2020-10-19 23:30:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:20,957 INFO L225 Difference]: With dead ends: 9440 [2020-10-19 23:30:20,957 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:20,961 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 23:30:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:20,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-10-19 23:30:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-10-19 23:30:20,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4534 transitions. [2020-10-19 23:30:20,993 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4534 transitions. Word has length 1692 [2020-10-19 23:30:20,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:20,994 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4534 transitions. [2020-10-19 23:30:20,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:20,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4534 transitions. [2020-10-19 23:30:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1726 [2020-10-19 23:30:21,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:21,013 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, 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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 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, 1] [2020-10-19 23:30:21,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 23:30:21,013 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:21,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:21,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1589858536, now seen corresponding path program 1 times [2020-10-19 23:30:21,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:21,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150064774] [2020-10-19 23:30:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 9719 backedges. 6578 proven. 0 refuted. 0 times theorem prover too weak. 3141 trivial. 0 not checked. [2020-10-19 23:30:23,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150064774] [2020-10-19 23:30:23,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:23,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:30:23,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829518081] [2020-10-19 23:30:23,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:23,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:23,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:23,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:23,348 INFO L87 Difference]: Start difference. First operand 4454 states and 4534 transitions. Second operand 4 states. [2020-10-19 23:30:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:24,481 INFO L93 Difference]: Finished difference Result 8906 states and 9072 transitions. [2020-10-19 23:30:24,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:24,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1725 [2020-10-19 23:30:24,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:24,490 INFO L225 Difference]: With dead ends: 8906 [2020-10-19 23:30:24,491 INFO L226 Difference]: Without dead ends: 4632 [2020-10-19 23:30:24,496 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 23:30:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-19 23:30:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-10-19 23:30:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-10-19 23:30:24,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4523 transitions. [2020-10-19 23:30:24,540 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4523 transitions. Word has length 1725 [2020-10-19 23:30:24,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:24,541 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4523 transitions. [2020-10-19 23:30:24,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4523 transitions. [2020-10-19 23:30:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2020-10-19 23:30:24,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:24,563 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, 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, 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, 11, 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, 1] [2020-10-19 23:30:24,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 23:30:24,564 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:24,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:24,564 INFO L82 PathProgramCache]: Analyzing trace with hash 154720864, now seen corresponding path program 1 times [2020-10-19 23:30:24,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:24,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78182958] [2020-10-19 23:30:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 2756 proven. 1045 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2020-10-19 23:30:26,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78182958] [2020-10-19 23:30:26,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096930729] [2020-10-19 23:30:26,856 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 23:30:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:27,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:30:27,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:30:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 3801 proven. 0 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2020-10-19 23:30:28,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:30:28,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:30:28,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986849236] [2020-10-19 23:30:28,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:30:28,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:28,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:30:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:30:28,459 INFO L87 Difference]: Start difference. First operand 4454 states and 4523 transitions. Second operand 3 states. [2020-10-19 23:30:29,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:29,083 INFO L93 Difference]: Finished difference Result 8550 states and 8679 transitions. [2020-10-19 23:30:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:30:29,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1742 [2020-10-19 23:30:29,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:29,088 INFO L225 Difference]: With dead ends: 8550 [2020-10-19 23:30:29,088 INFO L226 Difference]: Without dead ends: 3386 [2020-10-19 23:30:29,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1741 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 23:30:29,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-10-19 23:30:29,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-10-19 23:30:29,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:30:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3422 transitions. [2020-10-19 23:30:29,113 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3422 transitions. Word has length 1742 [2020-10-19 23:30:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:29,114 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3422 transitions. [2020-10-19 23:30:29,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:30:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3422 transitions. [2020-10-19 23:30:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1814 [2020-10-19 23:30:29,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:29,134 INFO L422 BasicCegarLoop]: trace histogram [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, 16, 16, 16, 16, 16, 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, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 1] [2020-10-19 23:30:29,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:30:29,336 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:29,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:29,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1974925534, now seen corresponding path program 1 times [2020-10-19 23:30:29,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:29,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892974680] [2020-10-19 23:30:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 10875 backedges. 2724 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2020-10-19 23:30:31,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892974680] [2020-10-19 23:30:31,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:31,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:30:31,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581562703] [2020-10-19 23:30:31,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:31,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:31,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:31,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:31,168 INFO L87 Difference]: Start difference. First operand 3386 states and 3422 transitions. Second operand 4 states. [2020-10-19 23:30:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:32,155 INFO L93 Difference]: Finished difference Result 4278 states and 4326 transitions. [2020-10-19 23:30:32,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:32,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1813 [2020-10-19 23:30:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:32,160 INFO L225 Difference]: With dead ends: 4278 [2020-10-19 23:30:32,160 INFO L226 Difference]: Without dead ends: 4098 [2020-10-19 23:30:32,162 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 23:30:32,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-19 23:30:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-10-19 23:30:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-10-19 23:30:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3784 transitions. [2020-10-19 23:30:32,201 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3784 transitions. Word has length 1813 [2020-10-19 23:30:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:32,202 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3784 transitions. [2020-10-19 23:30:32,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3784 transitions. [2020-10-19 23:30:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2020-10-19 23:30:32,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:30:32,230 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 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, 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, 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, 1] [2020-10-19 23:30:32,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-19 23:30:32,231 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:30:32,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:30:32,232 INFO L82 PathProgramCache]: Analyzing trace with hash 512253031, now seen corresponding path program 1 times [2020-10-19 23:30:32,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:30:32,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832839024] [2020-10-19 23:30:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:30:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:30:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 14461 backedges. 3142 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2020-10-19 23:30:34,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832839024] [2020-10-19 23:30:34,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:30:34,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:30:34,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951978953] [2020-10-19 23:30:34,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:30:34,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:30:34,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:30:34,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:30:34,412 INFO L87 Difference]: Start difference. First operand 3742 states and 3784 transitions. Second operand 4 states. [2020-10-19 23:30:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:30:35,047 INFO L93 Difference]: Finished difference Result 3742 states and 3784 transitions. [2020-10-19 23:30:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:30:35,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2115 [2020-10-19 23:30:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:30:35,051 INFO L225 Difference]: With dead ends: 3742 [2020-10-19 23:30:35,051 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:30:35,054 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 23:30:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:30:35,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:30:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:30:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:30:35,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2115 [2020-10-19 23:30:35,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:30:35,055 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:30:35,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:30:35,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:30:35,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:30:35,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-19 23:30:35,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:30:35,247 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 128 [2020-10-19 23:30:35,352 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 128 [2020-10-19 23:30:36,305 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2020-10-19 23:30:37,153 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2020-10-19 23:30:37,157 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-19 23:30:37,157 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:30:37,157 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:30:37,157 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:30:37,157 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-19 23:30:37,157 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-19 23:30:37,158 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-19 23:30:37,159 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-19 23:30:37,159 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-19 23:30:37,159 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,159 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,159 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,159 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-19 23:30:37,160 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-19 23:30:37,161 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:30:37,162 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-19 23:30:37,163 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:30:37,164 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:30:37,165 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-19 23:30:37,166 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:30:37,167 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,168 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,169 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-19 23:30:37,170 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-19 23:30:37,171 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-19 23:30:37,172 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,173 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse12 (<= 7 ~a21~0)) (.cse4 (< 0 (+ ~a12~0 43))) (.cse5 (<= ~a12~0 11)) (.cse6 (<= ~a21~0 6)) (.cse13 (<= ~a21~0 7)) (.cse1 (< 80 ~a12~0)) (.cse3 (<= ~a15~0 7)) (.cse9 (<= ~a15~0 8)) (.cse11 (<= 10 ~a21~0)) (.cse0 (<= ~a24~0 1)) (.cse14 (<= ~a15~0 6)) (.cse7 (<= 8 ~a21~0)) (.cse8 (<= 9 ~a15~0)) (.cse2 (<= ~a21~0 8)) (.cse10 (<= ~a12~0 76))) (or (and .cse0 .cse1 (<= ~a12~0 73282) .cse2) (and .cse3 .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse7 (<= (+ ~a12~0 42) 0) .cse2) (and .cse1 .cse8 (<= ~a12~0 599999)) (and (<= 9 ~a21~0) .cse0 .cse9 (<= ~a21~0 9) .cse10) (and .cse5 .cse8 .cse11) (and .cse12 .cse13 .cse3 .cse0 .cse9) (and .cse0 .cse5 .cse9 .cse11) (and .cse12 .cse13 .cse4 .cse0 .cse5 .cse9) (and (<= (+ ~a12~0 49) 0) (= ~a24~0 1) .cse9) (and (<= 8 ~a15~0) .cse0 .cse7 .cse2 .cse10) (and (<= (+ ~a12~0 9352) 0) .cse6 .cse14) (and .cse0 (or (and .cse1 .cse9 .cse11) (and .cse13 .cse1 .cse9))) (and .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse9 .cse11) (and .cse0 .cse14) (and .cse7 .cse8 .cse2 .cse10))) [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-19 23:30:37,174 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-19 23:30:37,175 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,176 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse12 (<= 7 ~a21~0)) (.cse4 (< 0 (+ ~a12~0 43))) (.cse5 (<= ~a12~0 11)) (.cse6 (<= ~a21~0 6)) (.cse13 (<= ~a21~0 7)) (.cse1 (< 80 ~a12~0)) (.cse3 (<= ~a15~0 7)) (.cse9 (<= ~a15~0 8)) (.cse11 (<= 10 ~a21~0)) (.cse0 (<= ~a24~0 1)) (.cse14 (<= ~a15~0 6)) (.cse7 (<= 8 ~a21~0)) (.cse8 (<= 9 ~a15~0)) (.cse2 (<= ~a21~0 8)) (.cse10 (<= ~a12~0 76))) (or (and .cse0 .cse1 (<= ~a12~0 73282) .cse2) (and .cse3 .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse7 (<= (+ ~a12~0 42) 0) .cse2) (and .cse1 .cse8 (<= ~a12~0 599999)) (and (<= 9 ~a21~0) .cse0 .cse9 (<= ~a21~0 9) .cse10) (and .cse5 .cse8 .cse11) (and .cse12 .cse13 .cse3 .cse0 .cse9) (and .cse0 .cse5 .cse9 .cse11) (and .cse12 .cse13 .cse4 .cse0 .cse5 .cse9) (and (<= (+ ~a12~0 49) 0) (= ~a24~0 1) .cse9) (and (<= 8 ~a15~0) .cse0 .cse7 .cse2 .cse10) (and (<= (+ ~a12~0 9352) 0) .cse6 .cse14) (and .cse0 (or (and .cse1 .cse9 .cse11) (and .cse13 .cse1 .cse9))) (and .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse9 .cse11) (and .cse0 .cse14) (and .cse7 .cse8 .cse2 .cse10))) [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:30:37,177 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:30:37,178 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-19 23:30:37,179 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,180 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,181 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:30:37,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:30:37 BoogieIcfgContainer [2020-10-19 23:30:37,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:30:37,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:30:37,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:30:37,210 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:30:37,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:29:37" (3/4) ... [2020-10-19 23:30:37,216 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:30:37,241 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:30:37,243 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:30:37,244 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:30:37,246 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:30:37,400 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:30:37,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:30:37,402 INFO L168 Benchmark]: Toolchain (without parser) took 62616.49 ms. Allocated memory was 37.2 MB in the beginning and 2.3 GB in the end (delta: 2.3 GB). Free memory was 10.8 MB in the beginning and 2.1 GB in the end (delta: -2.1 GB). Peak memory consumption was 201.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,402 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 37.2 MB. Free memory was 16.8 MB in the beginning and 16.7 MB in the end (delta: 73.7 kB). Peak memory consumption was 73.7 kB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.91 ms. Allocated memory was 37.2 MB in the beginning and 47.7 MB in the end (delta: 10.5 MB). Free memory was 10.0 MB in the beginning and 19.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.24 ms. Allocated memory is still 47.7 MB. Free memory was 19.3 MB in the beginning and 24.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,403 INFO L168 Benchmark]: Boogie Preprocessor took 117.93 ms. Allocated memory is still 47.7 MB. Free memory was 24.2 MB in the beginning and 17.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,404 INFO L168 Benchmark]: RCFGBuilder took 1784.06 ms. Allocated memory was 47.7 MB in the beginning and 67.6 MB in the end (delta: 19.9 MB). Free memory was 17.4 MB in the beginning and 17.9 MB in the end (delta: -545.4 kB). Peak memory consumption was 23.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,404 INFO L168 Benchmark]: TraceAbstraction took 59585.93 ms. Allocated memory was 67.6 MB in the beginning and 2.3 GB in the end (delta: 2.3 GB). Free memory was 17.3 MB in the beginning and 2.1 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.3 GB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,404 INFO L168 Benchmark]: Witness Printer took 191.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 2.3 kB). Peak memory consumption was 2.3 kB. Max. memory is 14.3 GB. [2020-10-19 23:30:37,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 37.2 MB. Free memory was 16.8 MB in the beginning and 16.7 MB in the end (delta: 73.7 kB). Peak memory consumption was 73.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 768.91 ms. Allocated memory was 37.2 MB in the beginning and 47.7 MB in the end (delta: 10.5 MB). Free memory was 10.0 MB in the beginning and 19.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 157.24 ms. Allocated memory is still 47.7 MB. Free memory was 19.3 MB in the beginning and 24.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 117.93 ms. Allocated memory is still 47.7 MB. Free memory was 24.2 MB in the beginning and 17.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1784.06 ms. Allocated memory was 47.7 MB in the beginning and 67.6 MB in the end (delta: 19.9 MB). Free memory was 17.4 MB in the beginning and 17.9 MB in the end (delta: -545.4 kB). Peak memory consumption was 23.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 59585.93 ms. Allocated memory was 67.6 MB in the beginning and 2.3 GB in the end (delta: 2.3 GB). Free memory was 17.3 MB in the beginning and 2.1 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.3 GB. Max. memory is 14.3 GB. * Witness Printer took 191.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 2.3 kB). Peak memory consumption was 2.3 kB. Max. memory is 14.3 GB. * 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 Derived loop invariant: ((((((((((((((((((a24 <= 1 && 80 < a12) && a12 <= 73282) && a21 <= 8) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 6)) || (((a24 <= 1 && 8 <= a21) && a12 + 42 <= 0) && a21 <= 8)) || ((80 < a12 && 9 <= a15) && a12 <= 599999)) || ((((9 <= a21 && a24 <= 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || ((a12 <= 11 && 9 <= a15) && 10 <= a21)) || ((((7 <= a21 && a21 <= 7) && a15 <= 7) && a24 <= 1) && a15 <= 8)) || (((a24 <= 1 && a12 <= 11) && a15 <= 8) && 10 <= a21)) || (((((7 <= a21 && a21 <= 7) && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a15 <= 8)) || ((a12 + 49 <= 0 && a24 == 1) && a15 <= 8)) || ((((8 <= a15 && a24 <= 1) && 8 <= a21) && a21 <= 8) && a12 <= 76)) || ((a12 + 9352 <= 0 && a21 <= 6) && a15 <= 6)) || (a24 <= 1 && (((80 < a12 && a15 <= 8) && 10 <= a21) || ((a21 <= 7 && 80 < a12) && a15 <= 8)))) || ((a15 <= 7 && a24 <= 1) && 80 < a12)) || (((a15 <= 7 && a24 <= 1) && a15 <= 8) && 10 <= a21)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 9 <= a15) && a21 <= 8) && a12 <= 76) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: ((((((((((((((((((a24 <= 1 && 80 < a12) && a12 <= 73282) && a21 <= 8) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 6)) || (((a24 <= 1 && 8 <= a21) && a12 + 42 <= 0) && a21 <= 8)) || ((80 < a12 && 9 <= a15) && a12 <= 599999)) || ((((9 <= a21 && a24 <= 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || ((a12 <= 11 && 9 <= a15) && 10 <= a21)) || ((((7 <= a21 && a21 <= 7) && a15 <= 7) && a24 <= 1) && a15 <= 8)) || (((a24 <= 1 && a12 <= 11) && a15 <= 8) && 10 <= a21)) || (((((7 <= a21 && a21 <= 7) && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a15 <= 8)) || ((a12 + 49 <= 0 && a24 == 1) && a15 <= 8)) || ((((8 <= a15 && a24 <= 1) && 8 <= a21) && a21 <= 8) && a12 <= 76)) || ((a12 + 9352 <= 0 && a21 <= 6) && a15 <= 6)) || (a24 <= 1 && (((80 < a12 && a15 <= 8) && 10 <= a21) || ((a21 <= 7 && 80 < a12) && a15 <= 8)))) || ((a15 <= 7 && a24 <= 1) && 80 < a12)) || (((a15 <= 7 && a24 <= 1) && a15 <= 8) && 10 <= a21)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 9 <= a15) && a21 <= 8) && a12 <= 76) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 57.3s, OverallIterations: 25, TraceHistogramMax: 18, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3097 SDtfs, 2955 SDslu, 138 SDs, 0 SdLazy, 12501 SolverSat, 1249 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7947 GetRequests, 7883 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=20, 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, 25 MinimizatonAttempts, 5874 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 69 NumberOfFragments, 483 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5496 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1856 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 28537 NumberOfCodeBlocks, 28537 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 28502 ConstructedInterpolants, 1 QuantifiedInterpolants, 68863272 SizeOfPredicates, 4 NumberOfNonLiveVariables, 10021 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 35 InterpolantComputations, 24 PerfectInterpolantSequences, 108375/110793 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...