./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label39.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/Problem02_label39.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 a4b2e4ee754cb0aea759602539a98a6896e837e2 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:31:30,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:31:30,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:31:30,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:31:30,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:31:30,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:31:30,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:31:30,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:31:30,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:31:30,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:31:30,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:31:30,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:31:30,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:31:30,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:31:30,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:31:30,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:31:30,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:31:30,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:31:30,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:31:30,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:31:30,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:31:30,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:31:30,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:31:30,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:31:30,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:31:30,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:31:30,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:31:30,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:31:30,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:31:30,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:31:30,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:31:30,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:31:30,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:31:30,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:31:30,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:31:30,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:31:30,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:31:30,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:31:30,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:31:30,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:31:30,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:31:30,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:31:30,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:31:30,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:31:30,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:31:30,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:31:30,634 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:31:30,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:31:30,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:31:30,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:31:30,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:31:30,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:31:30,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:31:30,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:31:30,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:31:30,637 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:31:30,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:31:30,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:31:30,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:31:30,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:31:30,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:31:30,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:31:30,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:31:30,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:30,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:31:30,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:31:30,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:31:30,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:31:30,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:31:30,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:31:30,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:31:30,643 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 -> a4b2e4ee754cb0aea759602539a98a6896e837e2 [2020-10-19 22:31:30,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:31:30,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:31:30,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:31:30,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:31:30,867 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:31:30,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label39.c [2020-10-19 22:31:30,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12c3b36e/a1a29d32976545d792b0d073f37c8eda/FLAG0414f04bf [2020-10-19 22:31:31,494 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:31:31,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label39.c [2020-10-19 22:31:31,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12c3b36e/a1a29d32976545d792b0d073f37c8eda/FLAG0414f04bf [2020-10-19 22:31:31,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12c3b36e/a1a29d32976545d792b0d073f37c8eda [2020-10-19 22:31:31,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:31:31,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:31:31,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:31,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:31:31,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:31:31,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:31" (1/1) ... [2020-10-19 22:31:31,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240bd3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:31, skipping insertion in model container [2020-10-19 22:31:31,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:31" (1/1) ... [2020-10-19 22:31:31,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:31:31,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:31:32,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:32,431 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:31:32,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:32,620 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:31:32,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32 WrapperNode [2020-10-19 22:31:32,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:32,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:32,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:31:32,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:31:32,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:32,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:31:32,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:31:32,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:31:32,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:31:32,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:31:32,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:31:32,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:31:32,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (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 22:31:32,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:31:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:31:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:31:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:31:34,450 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:31:34,451 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:31:34,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:34 BoogieIcfgContainer [2020-10-19 22:31:34,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:31:34,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:31:34,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:31:34,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:31:34,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:31:31" (1/3) ... [2020-10-19 22:31:34,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b2f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:34, skipping insertion in model container [2020-10-19 22:31:34,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (2/3) ... [2020-10-19 22:31:34,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b2f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:34, skipping insertion in model container [2020-10-19 22:31:34,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:34" (3/3) ... [2020-10-19 22:31:34,466 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label39.c [2020-10-19 22:31:34,478 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:31:34,488 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:31:34,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:31:34,545 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:31:34,546 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:31:34,546 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:31:34,547 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:31:34,547 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:31:34,547 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:31:34,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:31:34,548 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:31:34,575 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-19 22:31:34,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-19 22:31:34,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:34,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:34,590 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:34,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1738135197, now seen corresponding path program 1 times [2020-10-19 22:31:34,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:34,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467424901] [2020-10-19 22:31:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:35,181 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 22:31:35,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467424901] [2020-10-19 22:31:35,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:35,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:35,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66193553] [2020-10-19 22:31:35,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:35,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:35,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:35,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:35,209 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-19 22:31:36,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:36,237 INFO L93 Difference]: Finished difference Result 631 states and 1071 transitions. [2020-10-19 22:31:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:36,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-10-19 22:31:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:36,258 INFO L225 Difference]: With dead ends: 631 [2020-10-19 22:31:36,258 INFO L226 Difference]: Without dead ends: 318 [2020-10-19 22:31:36,264 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 22:31:36,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-19 22:31:36,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-10-19 22:31:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-19 22:31:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2020-10-19 22:31:36,333 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 111 [2020-10-19 22:31:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:36,335 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2020-10-19 22:31:36,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:36,335 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2020-10-19 22:31:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-19 22:31:36,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:36,341 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:36,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:31:36,341 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:36,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:36,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1948065238, now seen corresponding path program 1 times [2020-10-19 22:31:36,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:36,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441470825] [2020-10-19 22:31:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:36,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441470825] [2020-10-19 22:31:36,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:36,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:36,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409828907] [2020-10-19 22:31:36,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:36,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:36,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:36,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:36,457 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand 3 states. [2020-10-19 22:31:37,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:37,121 INFO L93 Difference]: Finished difference Result 919 states and 1357 transitions. [2020-10-19 22:31:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:37,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-10-19 22:31:37,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:37,126 INFO L225 Difference]: With dead ends: 919 [2020-10-19 22:31:37,126 INFO L226 Difference]: Without dead ends: 603 [2020-10-19 22:31:37,128 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 22:31:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-19 22:31:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 601. [2020-10-19 22:31:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-10-19 22:31:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 776 transitions. [2020-10-19 22:31:37,158 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 776 transitions. Word has length 115 [2020-10-19 22:31:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:37,158 INFO L481 AbstractCegarLoop]: Abstraction has 601 states and 776 transitions. [2020-10-19 22:31:37,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 776 transitions. [2020-10-19 22:31:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-19 22:31:37,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:37,163 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:37,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:31:37,163 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:37,164 INFO L82 PathProgramCache]: Analyzing trace with hash -615414487, now seen corresponding path program 1 times [2020-10-19 22:31:37,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:37,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301240555] [2020-10-19 22:31:37,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:37,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301240555] [2020-10-19 22:31:37,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65143612] [2020-10-19 22:31:37,312 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 22:31:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:37,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:37,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:37,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:37,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:37,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080926897] [2020-10-19 22:31:37,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:37,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:37,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:37,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:37,514 INFO L87 Difference]: Start difference. First operand 601 states and 776 transitions. Second operand 3 states. [2020-10-19 22:31:38,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:38,145 INFO L93 Difference]: Finished difference Result 1486 states and 1973 transitions. [2020-10-19 22:31:38,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:38,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-10-19 22:31:38,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:38,155 INFO L225 Difference]: With dead ends: 1486 [2020-10-19 22:31:38,155 INFO L226 Difference]: Without dead ends: 887 [2020-10-19 22:31:38,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 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 22:31:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-19 22:31:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2020-10-19 22:31:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-19 22:31:38,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1155 transitions. [2020-10-19 22:31:38,201 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1155 transitions. Word has length 120 [2020-10-19 22:31:38,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:38,203 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 1155 transitions. [2020-10-19 22:31:38,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:38,203 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1155 transitions. [2020-10-19 22:31:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-19 22:31:38,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:38,209 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:38,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:31:38,424 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:38,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:38,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2067774555, now seen corresponding path program 1 times [2020-10-19 22:31:38,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:38,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485884053] [2020-10-19 22:31:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:38,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485884053] [2020-10-19 22:31:38,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:38,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:38,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708488155] [2020-10-19 22:31:38,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:38,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:38,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:38,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:38,488 INFO L87 Difference]: Start difference. First operand 885 states and 1155 transitions. Second operand 3 states. [2020-10-19 22:31:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:39,082 INFO L93 Difference]: Finished difference Result 2469 states and 3250 transitions. [2020-10-19 22:31:39,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:39,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-10-19 22:31:39,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:39,093 INFO L225 Difference]: With dead ends: 2469 [2020-10-19 22:31:39,093 INFO L226 Difference]: Without dead ends: 1586 [2020-10-19 22:31:39,095 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 22:31:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2020-10-19 22:31:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2020-10-19 22:31:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2020-10-19 22:31:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1996 transitions. [2020-10-19 22:31:39,149 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1996 transitions. Word has length 121 [2020-10-19 22:31:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:39,150 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 1996 transitions. [2020-10-19 22:31:39,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1996 transitions. [2020-10-19 22:31:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-19 22:31:39,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:39,157 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:39,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:31:39,158 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:39,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:39,158 INFO L82 PathProgramCache]: Analyzing trace with hash -84758431, now seen corresponding path program 1 times [2020-10-19 22:31:39,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:39,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414135574] [2020-10-19 22:31:39,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 22:31:39,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414135574] [2020-10-19 22:31:39,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250923686] [2020-10-19 22:31:39,291 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 22:31:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:39,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:39,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:39,452 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 22:31:39,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:39,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 22:31:39,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581751671] [2020-10-19 22:31:39,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:39,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:39,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:39,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:39,454 INFO L87 Difference]: Start difference. First operand 1586 states and 1996 transitions. Second operand 3 states. [2020-10-19 22:31:39,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:39,806 INFO L93 Difference]: Finished difference Result 3018 states and 3825 transitions. [2020-10-19 22:31:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:39,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-19 22:31:39,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:39,815 INFO L225 Difference]: With dead ends: 3018 [2020-10-19 22:31:39,815 INFO L226 Difference]: Without dead ends: 1434 [2020-10-19 22:31:39,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-10-19 22:31:39,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2020-10-19 22:31:39,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-10-19 22:31:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1786 transitions. [2020-10-19 22:31:39,850 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1786 transitions. Word has length 126 [2020-10-19 22:31:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:39,851 INFO L481 AbstractCegarLoop]: Abstraction has 1434 states and 1786 transitions. [2020-10-19 22:31:39,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1786 transitions. [2020-10-19 22:31:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-19 22:31:39,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:39,855 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:40,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:40,070 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:40,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:40,070 INFO L82 PathProgramCache]: Analyzing trace with hash 248406562, now seen corresponding path program 1 times [2020-10-19 22:31:40,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:40,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836546558] [2020-10-19 22:31:40,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:40,209 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 22:31:40,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836546558] [2020-10-19 22:31:40,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:40,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 22:31:40,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718614942] [2020-10-19 22:31:40,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 22:31:40,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:40,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 22:31:40,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:40,214 INFO L87 Difference]: Start difference. First operand 1434 states and 1786 transitions. Second operand 5 states. [2020-10-19 22:31:41,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:41,314 INFO L93 Difference]: Finished difference Result 3611 states and 4481 transitions. [2020-10-19 22:31:41,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 22:31:41,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-19 22:31:41,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:41,325 INFO L225 Difference]: With dead ends: 3611 [2020-10-19 22:31:41,325 INFO L226 Difference]: Without dead ends: 2033 [2020-10-19 22:31:41,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-19 22:31:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2020-10-19 22:31:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1434. [2020-10-19 22:31:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-10-19 22:31:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1692 transitions. [2020-10-19 22:31:41,361 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1692 transitions. Word has length 140 [2020-10-19 22:31:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:41,362 INFO L481 AbstractCegarLoop]: Abstraction has 1434 states and 1692 transitions. [2020-10-19 22:31:41,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 22:31:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1692 transitions. [2020-10-19 22:31:41,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-19 22:31:41,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:41,366 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:41,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:31:41,366 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:41,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:41,366 INFO L82 PathProgramCache]: Analyzing trace with hash -680888340, now seen corresponding path program 1 times [2020-10-19 22:31:41,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:41,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668164428] [2020-10-19 22:31:41,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:41,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668164428] [2020-10-19 22:31:41,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439993122] [2020-10-19 22:31:41,488 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 22:31:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:41,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:41,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:41,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:41,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:31:41,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091283749] [2020-10-19 22:31:41,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:41,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:41,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:41,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:41,708 INFO L87 Difference]: Start difference. First operand 1434 states and 1692 transitions. Second operand 3 states. [2020-10-19 22:31:42,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:42,301 INFO L93 Difference]: Finished difference Result 2724 states and 3236 transitions. [2020-10-19 22:31:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:42,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-10-19 22:31:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:42,309 INFO L225 Difference]: With dead ends: 2724 [2020-10-19 22:31:42,309 INFO L226 Difference]: Without dead ends: 1432 [2020-10-19 22:31:42,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-19 22:31:42,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2020-10-19 22:31:42,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1432 states. [2020-10-19 22:31:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1607 transitions. [2020-10-19 22:31:42,339 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1607 transitions. Word has length 144 [2020-10-19 22:31:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:42,339 INFO L481 AbstractCegarLoop]: Abstraction has 1432 states and 1607 transitions. [2020-10-19 22:31:42,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:42,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1607 transitions. [2020-10-19 22:31:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-19 22:31:42,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:42,344 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:42,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:42,559 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:42,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1972287809, now seen corresponding path program 1 times [2020-10-19 22:31:42,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:42,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544297381] [2020-10-19 22:31:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:42,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544297381] [2020-10-19 22:31:42,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:42,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:42,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084880190] [2020-10-19 22:31:42,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:42,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:42,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:42,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:42,622 INFO L87 Difference]: Start difference. First operand 1432 states and 1607 transitions. Second operand 3 states. [2020-10-19 22:31:43,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:43,185 INFO L93 Difference]: Finished difference Result 3572 states and 4035 transitions. [2020-10-19 22:31:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:43,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-10-19 22:31:43,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:43,200 INFO L225 Difference]: With dead ends: 3572 [2020-10-19 22:31:43,200 INFO L226 Difference]: Without dead ends: 2282 [2020-10-19 22:31:43,203 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 22:31:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2020-10-19 22:31:43,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2275. [2020-10-19 22:31:43,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2275 states. [2020-10-19 22:31:43,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 2496 transitions. [2020-10-19 22:31:43,308 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 2496 transitions. Word has length 151 [2020-10-19 22:31:43,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:43,309 INFO L481 AbstractCegarLoop]: Abstraction has 2275 states and 2496 transitions. [2020-10-19 22:31:43,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:43,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 2496 transitions. [2020-10-19 22:31:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-19 22:31:43,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:43,317 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:43,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:31:43,317 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:43,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:43,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1228308117, now seen corresponding path program 1 times [2020-10-19 22:31:43,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:43,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055474133] [2020-10-19 22:31:43,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:43,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055474133] [2020-10-19 22:31:43,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:43,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:43,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881704402] [2020-10-19 22:31:43,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:43,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:43,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:43,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:43,438 INFO L87 Difference]: Start difference. First operand 2275 states and 2496 transitions. Second operand 3 states. [2020-10-19 22:31:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:44,076 INFO L93 Difference]: Finished difference Result 3120 states and 3416 transitions. [2020-10-19 22:31:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:44,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-10-19 22:31:44,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:44,084 INFO L225 Difference]: With dead ends: 3120 [2020-10-19 22:31:44,084 INFO L226 Difference]: Without dead ends: 1137 [2020-10-19 22:31:44,088 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 22:31:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2020-10-19 22:31:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2020-10-19 22:31:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-10-19 22:31:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1200 transitions. [2020-10-19 22:31:44,122 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1200 transitions. Word has length 154 [2020-10-19 22:31:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:44,122 INFO L481 AbstractCegarLoop]: Abstraction has 1137 states and 1200 transitions. [2020-10-19 22:31:44,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1200 transitions. [2020-10-19 22:31:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-19 22:31:44,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:44,127 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:44,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:31:44,127 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:44,130 INFO L82 PathProgramCache]: Analyzing trace with hash 322604635, now seen corresponding path program 1 times [2020-10-19 22:31:44,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:44,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209145558] [2020-10-19 22:31:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:44,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209145558] [2020-10-19 22:31:44,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:44,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:44,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205794419] [2020-10-19 22:31:44,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:44,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:44,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:44,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:44,325 INFO L87 Difference]: Start difference. First operand 1137 states and 1200 transitions. Second operand 3 states. [2020-10-19 22:31:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:44,725 INFO L93 Difference]: Finished difference Result 1987 states and 2097 transitions. [2020-10-19 22:31:44,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:44,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-10-19 22:31:44,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:44,730 INFO L225 Difference]: With dead ends: 1987 [2020-10-19 22:31:44,731 INFO L226 Difference]: Without dead ends: 992 [2020-10-19 22:31:44,732 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 22:31:44,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-10-19 22:31:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2020-10-19 22:31:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-10-19 22:31:44,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1023 transitions. [2020-10-19 22:31:44,752 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1023 transitions. Word has length 189 [2020-10-19 22:31:44,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:44,752 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1023 transitions. [2020-10-19 22:31:44,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:44,752 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1023 transitions. [2020-10-19 22:31:44,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-19 22:31:44,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:44,757 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:44,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:31:44,758 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:44,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:44,758 INFO L82 PathProgramCache]: Analyzing trace with hash -676408817, now seen corresponding path program 1 times [2020-10-19 22:31:44,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:44,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917147843] [2020-10-19 22:31:44,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 150 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:45,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917147843] [2020-10-19 22:31:45,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970245010] [2020-10-19 22:31:45,109 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 22:31:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:45,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-19 22:31:45,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:45,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 22:31:45,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715291165] [2020-10-19 22:31:45,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:45,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:45,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:45,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-19 22:31:45,284 INFO L87 Difference]: Start difference. First operand 992 states and 1023 transitions. Second operand 3 states. [2020-10-19 22:31:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:45,748 INFO L93 Difference]: Finished difference Result 2122 states and 2187 transitions. [2020-10-19 22:31:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:45,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-10-19 22:31:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:45,753 INFO L225 Difference]: With dead ends: 2122 [2020-10-19 22:31:45,753 INFO L226 Difference]: Without dead ends: 990 [2020-10-19 22:31:45,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-19 22:31:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-10-19 22:31:45,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2020-10-19 22:31:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2020-10-19 22:31:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1015 transitions. [2020-10-19 22:31:45,774 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1015 transitions. Word has length 241 [2020-10-19 22:31:45,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:45,775 INFO L481 AbstractCegarLoop]: Abstraction has 990 states and 1015 transitions. [2020-10-19 22:31:45,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1015 transitions. [2020-10-19 22:31:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-19 22:31:45,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:45,779 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:45,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:45,992 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:45,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1434295288, now seen corresponding path program 1 times [2020-10-19 22:31:45,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:45,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878594397] [2020-10-19 22:31:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:46,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878594397] [2020-10-19 22:31:46,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:46,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 22:31:46,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56622989] [2020-10-19 22:31:46,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:31:46,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:46,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:31:46,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:31:46,189 INFO L87 Difference]: Start difference. First operand 990 states and 1015 transitions. Second operand 4 states. [2020-10-19 22:31:46,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:46,583 INFO L93 Difference]: Finished difference Result 1694 states and 1742 transitions. [2020-10-19 22:31:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:46,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 246 [2020-10-19 22:31:46,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:46,584 INFO L225 Difference]: With dead ends: 1694 [2020-10-19 22:31:46,584 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:31:46,588 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 22:31:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:31:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:31:46,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:31:46,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:31:46,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2020-10-19 22:31:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:46,590 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:31:46,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:31:46,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:31:46,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:31:46,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:31:46,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:31:46,885 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-10-19 22:31:47,107 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-10-19 22:31:47,112 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-19 22:31:47,112 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-19 22:31:47,112 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-19 22:31:47,112 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:47,112 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-19 22:31:47,113 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-19 22:31:47,114 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-19 22:31:47,114 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-19 22:31:47,114 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,114 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:47,115 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,116 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,117 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,117 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-19 22:31:47,117 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-19 22:31:47,117 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-19 22:31:47,118 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:47,119 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-19 22:31:47,120 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-19 22:31:47,121 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-19 22:31:47,122 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-19 22:31:47,123 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-19 22:31:47,124 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-19 22:31:47,125 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:31:47,126 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 8)) (.cse5 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 9)) (.cse9 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 7)) (.cse8 (= ~a11~0 1)) (.cse0 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse3 (= ~a11~0 0)) (.cse7 (<= ~a17~0 8))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (= ~a28~0 10)) (and .cse5 .cse6 .cse3 .cse7 (<= ~a28~0 10)) (and .cse5 .cse8 .cse7) (and .cse9 .cse0 .cse3 .cse10 .cse7) (and .cse5 .cse10 .cse3 .cse7) (and .cse9 .cse0 .cse7 .cse8) (and .cse0 .cse6 .cse4 .cse8 (<= ~a17~0 7)) (and .cse0 .cse6 .cse3 .cse7))) [2020-10-19 22:31:47,126 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,126 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,126 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-19 22:31:47,126 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-19 22:31:47,127 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:47,128 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-19 22:31:47,129 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-19 22:31:47,129 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-19 22:31:47,129 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-19 22:31:47,129 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 8)) (.cse5 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 9)) (.cse9 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 7)) (.cse8 (= ~a11~0 1)) (.cse0 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse3 (= ~a11~0 0)) (.cse7 (<= ~a17~0 8))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (= ~a28~0 10)) (and .cse5 .cse6 .cse3 .cse7 (<= ~a28~0 10)) (and .cse5 .cse8 .cse7) (and .cse9 .cse0 .cse3 .cse10 .cse7) (and .cse5 .cse10 .cse3 .cse7) (and .cse9 .cse0 .cse7 .cse8) (and .cse0 .cse6 .cse4 .cse8 (<= ~a17~0 7)) (and .cse0 .cse6 .cse3 .cse7))) [2020-10-19 22:31:47,129 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,129 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,129 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-19 22:31:47,130 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,132 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-19 22:31:47,133 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-19 22:31:47,134 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-19 22:31:47,135 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-19 22:31:47,136 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-19 22:31:47,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:31:47 BoogieIcfgContainer [2020-10-19 22:31:47,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:31:47,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:31:47,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:31:47,195 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:31:47,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:34" (3/4) ... [2020-10-19 22:31:47,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:31:47,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:31:47,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:31:47,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:47,241 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:47,480 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:31:47,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:31:47,482 INFO L168 Benchmark]: Toolchain (without parser) took 15679.72 ms. Allocated memory was 35.1 MB in the beginning and 156.2 MB in the end (delta: 121.1 MB). Free memory was 10.6 MB in the beginning and 95.4 MB in the end (delta: -84.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,483 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 33.0 MB. Free memory was 18.1 MB in the beginning and 18.1 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.89 ms. Allocated memory was 35.1 MB in the beginning and 45.6 MB in the end (delta: 10.5 MB). Free memory was 9.6 MB in the beginning and 16.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.53 ms. Allocated memory is still 45.6 MB. Free memory was 16.0 MB in the beginning and 23.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,484 INFO L168 Benchmark]: Boogie Preprocessor took 65.55 ms. Allocated memory is still 45.6 MB. Free memory was 23.1 MB in the beginning and 18.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,484 INFO L168 Benchmark]: RCFGBuilder took 1611.77 ms. Allocated memory was 45.6 MB in the beginning and 57.1 MB in the end (delta: 11.5 MB). Free memory was 18.4 MB in the beginning and 27.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,485 INFO L168 Benchmark]: TraceAbstraction took 12738.75 ms. Allocated memory was 57.1 MB in the beginning and 156.2 MB in the end (delta: 99.1 MB). Free memory was 26.4 MB in the beginning and 113.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 110.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,485 INFO L168 Benchmark]: Witness Printer took 285.89 ms. Allocated memory is still 156.2 MB. Free memory was 113.7 MB in the beginning and 95.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 33.0 MB. Free memory was 18.1 MB in the beginning and 18.1 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 813.89 ms. Allocated memory was 35.1 MB in the beginning and 45.6 MB in the end (delta: 10.5 MB). Free memory was 9.6 MB in the beginning and 16.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 153.53 ms. Allocated memory is still 45.6 MB. Free memory was 16.0 MB in the beginning and 23.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 65.55 ms. Allocated memory is still 45.6 MB. Free memory was 23.1 MB in the beginning and 18.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1611.77 ms. Allocated memory was 45.6 MB in the beginning and 57.1 MB in the end (delta: 11.5 MB). Free memory was 18.4 MB in the beginning and 27.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 12738.75 ms. Allocated memory was 57.1 MB in the beginning and 156.2 MB in the end (delta: 99.1 MB). Free memory was 26.4 MB in the beginning and 113.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 110.4 MB. Max. memory is 14.3 GB. * Witness Printer took 285.89 ms. Allocated memory is still 156.2 MB. Free memory was 113.7 MB in the beginning and 95.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. 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: 608]: Loop Invariant Derived loop invariant: ((((((((((((a25 == a11 && a19 == 1) && a21 == 1) && a17 == 8) && a11 == 0) && a28 <= 7) || (((a19 == 1 && a21 == 1) && a17 == 8) && a28 == 10)) || ((((a19 <= 0 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((a19 <= 0 && a11 == 1) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a11 == 0) && a28 <= 9) && a17 <= 8)) || (((a19 <= 0 && a28 <= 9) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a11 == 1)) || ((((a19 == 1 && a25 == 1) && a28 <= 7) && a11 == 1) && a17 <= 7)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((((((a25 == a11 && a19 == 1) && a21 == 1) && a17 == 8) && a11 == 0) && a28 <= 7) || (((a19 == 1 && a21 == 1) && a17 == 8) && a28 == 10)) || ((((a19 <= 0 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((a19 <= 0 && a11 == 1) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a11 == 0) && a28 <= 9) && a17 <= 8)) || (((a19 <= 0 && a28 <= 9) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a11 == 1)) || ((((a19 == 1 && a25 == 1) && a28 <= 7) && a11 == 1) && a17 <= 7)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1536 SDtfs, 1853 SDslu, 189 SDs, 0 SdLazy, 4406 SolverSat, 669 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 667 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2275occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 610 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 261 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1050 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2489 NumberOfCodeBlocks, 2489 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2473 ConstructedInterpolants, 0 QuantifiedInterpolants, 1147022 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1235 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 1034/1134 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...