./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label47.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_label47.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 6274a407f4bd179be2d6a0a9c6918120039722a7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:31:37,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:31:37,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:31:37,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:31:37,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:31:37,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:31:37,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:31:37,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:31:37,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:31:37,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:31:37,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:31:37,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:31:37,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:31:37,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:31:37,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:31:37,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:31:37,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:31:37,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:31:37,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:31:37,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:31:37,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:31:37,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:31:37,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:31:37,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:31:37,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:31:37,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:31:37,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:31:37,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:31:37,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:31:37,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:31:37,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:31:37,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:31:37,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:31:37,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:31:37,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:31:37,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:31:37,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:31:37,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:31:37,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:31:37,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:31:37,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:31:37,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:31:37,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:31:37,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:31:37,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:31:37,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:31:37,687 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:31:37,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:31:37,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:31:37,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:31:37,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:31:37,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:31:37,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:31:37,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:31:37,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:31:37,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:31:37,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:31:37,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:31:37,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:31:37,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:31:37,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:31:37,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:31:37,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:31:37,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:37,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:31:37,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:31:37,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:31:37,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:31:37,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:31:37,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:31:37,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:31:37,695 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 -> 6274a407f4bd179be2d6a0a9c6918120039722a7 [2020-10-19 22:31:37,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:31:37,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:31:37,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:31:37,940 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:31:37,940 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:31:37,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2020-10-19 22:31:38,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e64b630ea/4cc0350bfbd947439834f4033e6f1faa/FLAG3d214c0ac [2020-10-19 22:31:38,598 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:31:38,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2020-10-19 22:31:38,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e64b630ea/4cc0350bfbd947439834f4033e6f1faa/FLAG3d214c0ac [2020-10-19 22:31:38,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e64b630ea/4cc0350bfbd947439834f4033e6f1faa [2020-10-19 22:31:38,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:31:38,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:31:38,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:38,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:31:38,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:31:38,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1c4046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38, skipping insertion in model container [2020-10-19 22:31:38,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:31:39,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:31:39,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:39,526 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:31:39,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:39,699 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:31:39,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39 WrapperNode [2020-10-19 22:31:39,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:39,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:39,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:31:39,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:31:39,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:39,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:31:39,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:31:39,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:31:39,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (1/1) ... [2020-10-19 22:31:39,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:31:39,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:31:39,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:31:39,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:31:39,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (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 22:31:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:31:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:31:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:31:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:31:41,472 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:31:41,473 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:31:41,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:41 BoogieIcfgContainer [2020-10-19 22:31:41,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:31:41,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:31:41,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:31:41,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:31:41,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:31:38" (1/3) ... [2020-10-19 22:31:41,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ef42e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:41, skipping insertion in model container [2020-10-19 22:31:41,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:39" (2/3) ... [2020-10-19 22:31:41,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ef42e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:41, skipping insertion in model container [2020-10-19 22:31:41,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:41" (3/3) ... [2020-10-19 22:31:41,488 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2020-10-19 22:31:41,500 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:31:41,509 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:31:41,524 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:31:41,565 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:31:41,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:31:41,566 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:31:41,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:31:41,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:31:41,567 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:31:41,567 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:31:41,567 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:31:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-19 22:31:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-19 22:31:41,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:41,616 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] [2020-10-19 22:31:41,617 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:41,624 INFO L82 PathProgramCache]: Analyzing trace with hash 978014419, now seen corresponding path program 1 times [2020-10-19 22:31:41,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:41,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335316587] [2020-10-19 22:31:41,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:42,139 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 22:31:42,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335316587] [2020-10-19 22:31:42,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:42,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:42,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217912618] [2020-10-19 22:31:42,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:42,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:42,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:42,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:42,165 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-19 22:31:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:43,244 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-10-19 22:31:43,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:43,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-19 22:31:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:43,266 INFO L225 Difference]: With dead ends: 640 [2020-10-19 22:31:43,266 INFO L226 Difference]: Without dead ends: 318 [2020-10-19 22:31:43,272 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 22:31:43,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-19 22:31:43,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-10-19 22:31:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-19 22:31:43,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-10-19 22:31:43,343 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 107 [2020-10-19 22:31:43,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:43,345 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-10-19 22:31:43,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:43,346 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-10-19 22:31:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-19 22:31:43,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:43,354 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] [2020-10-19 22:31:43,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:31:43,356 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:43,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:43,357 INFO L82 PathProgramCache]: Analyzing trace with hash 532444870, now seen corresponding path program 1 times [2020-10-19 22:31:43,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:43,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328186449] [2020-10-19 22:31:43,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:43,476 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 22:31:43,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328186449] [2020-10-19 22:31:43,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:43,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:43,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857617187] [2020-10-19 22:31:43,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:43,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:43,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:43,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:43,483 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-10-19 22:31:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:44,133 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-10-19 22:31:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:44,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-10-19 22:31:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:44,145 INFO L225 Difference]: With dead ends: 910 [2020-10-19 22:31:44,145 INFO L226 Difference]: Without dead ends: 599 [2020-10-19 22:31:44,150 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 22:31:44,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-19 22:31:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-10-19 22:31:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-19 22:31:44,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-10-19 22:31:44,183 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 111 [2020-10-19 22:31:44,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:44,183 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-10-19 22:31:44,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:44,184 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-10-19 22:31:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-19 22:31:44,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:44,187 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] [2020-10-19 22:31:44,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:31:44,188 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:44,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1340637287, now seen corresponding path program 1 times [2020-10-19 22:31:44,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:44,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096306065] [2020-10-19 22:31:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:44,310 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 22:31:44,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096306065] [2020-10-19 22:31:44,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692081017] [2020-10-19 22:31:44,312 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 22:31:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:44,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:44,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:44,514 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 22:31:44,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:44,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:44,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523056446] [2020-10-19 22:31:44,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:44,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:44,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:44,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:44,517 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-10-19 22:31:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:45,164 INFO L93 Difference]: Finished difference Result 1475 states and 1963 transitions. [2020-10-19 22:31:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:45,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-10-19 22:31:45,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:45,170 INFO L225 Difference]: With dead ends: 1475 [2020-10-19 22:31:45,171 INFO L226 Difference]: Without dead ends: 881 [2020-10-19 22:31:45,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 22:31:45,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-10-19 22:31:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-10-19 22:31:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-10-19 22:31:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1150 transitions. [2020-10-19 22:31:45,206 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1150 transitions. Word has length 116 [2020-10-19 22:31:45,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:45,207 INFO L481 AbstractCegarLoop]: Abstraction has 880 states and 1150 transitions. [2020-10-19 22:31:45,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1150 transitions. [2020-10-19 22:31:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-19 22:31:45,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:45,212 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-19 22:31:45,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:31:45,427 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:45,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:45,428 INFO L82 PathProgramCache]: Analyzing trace with hash 300385264, now seen corresponding path program 1 times [2020-10-19 22:31:45,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:45,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486622232] [2020-10-19 22:31:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:45,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486622232] [2020-10-19 22:31:45,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911518776] [2020-10-19 22:31:45,634 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 22:31:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:45,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:45,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:45,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 22:31:45,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41573269] [2020-10-19 22:31:45,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:45,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:45,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:45,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:45,773 INFO L87 Difference]: Start difference. First operand 880 states and 1150 transitions. Second operand 3 states. [2020-10-19 22:31:46,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:46,393 INFO L93 Difference]: Finished difference Result 2334 states and 3111 transitions. [2020-10-19 22:31:46,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:46,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-10-19 22:31:46,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:46,405 INFO L225 Difference]: With dead ends: 2334 [2020-10-19 22:31:46,405 INFO L226 Difference]: Without dead ends: 1456 [2020-10-19 22:31:46,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 22:31:46,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2020-10-19 22:31:46,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2020-10-19 22:31:46,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1456 states. [2020-10-19 22:31:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1894 transitions. [2020-10-19 22:31:46,446 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1894 transitions. Word has length 116 [2020-10-19 22:31:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:46,448 INFO L481 AbstractCegarLoop]: Abstraction has 1456 states and 1894 transitions. [2020-10-19 22:31:46,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1894 transitions. [2020-10-19 22:31:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-19 22:31:46,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:46,456 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] [2020-10-19 22:31:46,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:46,672 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:46,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:46,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1104795680, now seen corresponding path program 2 times [2020-10-19 22:31:46,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:46,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172848748] [2020-10-19 22:31:46,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 22:31:46,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172848748] [2020-10-19 22:31:46,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361951472] [2020-10-19 22:31:46,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:31:46,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 22:31:46,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 22:31:46,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:46,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 22:31:46,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:46,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:46,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016822599] [2020-10-19 22:31:46,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:46,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:46,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:46,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:46,864 INFO L87 Difference]: Start difference. First operand 1456 states and 1894 transitions. Second operand 3 states. [2020-10-19 22:31:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:47,545 INFO L93 Difference]: Finished difference Result 3476 states and 4597 transitions. [2020-10-19 22:31:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:47,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-10-19 22:31:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:47,556 INFO L225 Difference]: With dead ends: 3476 [2020-10-19 22:31:47,557 INFO L226 Difference]: Without dead ends: 2022 [2020-10-19 22:31:47,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 22:31:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2020-10-19 22:31:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2016. [2020-10-19 22:31:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2020-10-19 22:31:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2664 transitions. [2020-10-19 22:31:47,602 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2664 transitions. Word has length 121 [2020-10-19 22:31:47,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:47,603 INFO L481 AbstractCegarLoop]: Abstraction has 2016 states and 2664 transitions. [2020-10-19 22:31:47,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2664 transitions. [2020-10-19 22:31:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-19 22:31:47,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:47,609 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1] [2020-10-19 22:31:47,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:47,824 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:47,825 INFO L82 PathProgramCache]: Analyzing trace with hash -2068016150, now seen corresponding path program 1 times [2020-10-19 22:31:47,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:47,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567073087] [2020-10-19 22:31:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-19 22:31:47,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567073087] [2020-10-19 22:31:47,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313570946] [2020-10-19 22:31:47,934 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 22:31:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:48,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:48,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:48,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:48,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:48,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633727649] [2020-10-19 22:31:48,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:48,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:48,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:48,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:48,054 INFO L87 Difference]: Start difference. First operand 2016 states and 2664 transitions. Second operand 3 states. [2020-10-19 22:31:48,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:48,913 INFO L93 Difference]: Finished difference Result 4592 states and 6049 transitions. [2020-10-19 22:31:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:48,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-10-19 22:31:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:48,926 INFO L225 Difference]: With dead ends: 4592 [2020-10-19 22:31:48,927 INFO L226 Difference]: Without dead ends: 2578 [2020-10-19 22:31:48,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 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 22:31:48,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2020-10-19 22:31:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2576. [2020-10-19 22:31:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2020-10-19 22:31:48,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3174 transitions. [2020-10-19 22:31:48,979 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3174 transitions. Word has length 125 [2020-10-19 22:31:48,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:48,980 INFO L481 AbstractCegarLoop]: Abstraction has 2576 states and 3174 transitions. [2020-10-19 22:31:48,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:48,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3174 transitions. [2020-10-19 22:31:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-19 22:31:48,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:48,986 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:49,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:49,202 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:49,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1670544658, now seen corresponding path program 1 times [2020-10-19 22:31:49,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:49,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983277307] [2020-10-19 22:31:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-19 22:31:49,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983277307] [2020-10-19 22:31:49,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:49,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:49,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434286453] [2020-10-19 22:31:49,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:49,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:49,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:49,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:49,243 INFO L87 Difference]: Start difference. First operand 2576 states and 3174 transitions. Second operand 3 states. [2020-10-19 22:31:49,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:49,852 INFO L93 Difference]: Finished difference Result 6969 states and 8570 transitions. [2020-10-19 22:31:49,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:49,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-19 22:31:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:49,896 INFO L225 Difference]: With dead ends: 6969 [2020-10-19 22:31:49,897 INFO L226 Difference]: Without dead ends: 4395 [2020-10-19 22:31:49,903 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 22:31:49,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2020-10-19 22:31:49,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 4395. [2020-10-19 22:31:49,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4395 states. [2020-10-19 22:31:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 5147 transitions. [2020-10-19 22:31:49,996 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 5147 transitions. Word has length 126 [2020-10-19 22:31:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:49,996 INFO L481 AbstractCegarLoop]: Abstraction has 4395 states and 5147 transitions. [2020-10-19 22:31:49,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 5147 transitions. [2020-10-19 22:31:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-19 22:31:50,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:50,004 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 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] [2020-10-19 22:31:50,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:31:50,004 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:50,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:50,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1045582926, now seen corresponding path program 1 times [2020-10-19 22:31:50,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:50,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353325865] [2020-10-19 22:31:50,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:50,086 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 22:31:50,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353325865] [2020-10-19 22:31:50,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683917699] [2020-10-19 22:31:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:50,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:50,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-19 22:31:50,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:50,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 22:31:50,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757212482] [2020-10-19 22:31:50,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:50,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:50,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:50,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:50,231 INFO L87 Difference]: Start difference. First operand 4395 states and 5147 transitions. Second operand 3 states. [2020-10-19 22:31:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:50,538 INFO L93 Difference]: Finished difference Result 7928 states and 9293 transitions. [2020-10-19 22:31:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:50,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-10-19 22:31:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:50,578 INFO L225 Difference]: With dead ends: 7928 [2020-10-19 22:31:50,579 INFO L226 Difference]: Without dead ends: 3535 [2020-10-19 22:31:50,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 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 22:31:50,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2020-10-19 22:31:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3535. [2020-10-19 22:31:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3535 states. [2020-10-19 22:31:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4053 transitions. [2020-10-19 22:31:50,660 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4053 transitions. Word has length 131 [2020-10-19 22:31:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:50,660 INFO L481 AbstractCegarLoop]: Abstraction has 3535 states and 4053 transitions. [2020-10-19 22:31:50,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4053 transitions. [2020-10-19 22:31:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-19 22:31:50,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:50,669 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2020-10-19 22:31:50,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:50,883 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:50,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:50,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1725177081, now seen corresponding path program 1 times [2020-10-19 22:31:50,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:50,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794479926] [2020-10-19 22:31:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-19 22:31:51,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794479926] [2020-10-19 22:31:51,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734649180] [2020-10-19 22:31:51,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:51,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:51,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:51,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:51,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:31:51,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244027935] [2020-10-19 22:31:51,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:51,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:51,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:51,142 INFO L87 Difference]: Start difference. First operand 3535 states and 4053 transitions. Second operand 3 states. [2020-10-19 22:31:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:51,666 INFO L93 Difference]: Finished difference Result 6926 states and 7957 transitions. [2020-10-19 22:31:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:51,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-10-19 22:31:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:51,684 INFO L225 Difference]: With dead ends: 6926 [2020-10-19 22:31:51,684 INFO L226 Difference]: Without dead ends: 3533 [2020-10-19 22:31:51,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 22:31:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2020-10-19 22:31:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2413. [2020-10-19 22:31:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2020-10-19 22:31:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 2674 transitions. [2020-10-19 22:31:51,743 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 2674 transitions. Word has length 149 [2020-10-19 22:31:51,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:51,744 INFO L481 AbstractCegarLoop]: Abstraction has 2413 states and 2674 transitions. [2020-10-19 22:31:51,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:51,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 2674 transitions. [2020-10-19 22:31:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-19 22:31:51,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:51,750 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:51,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:51,963 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:51,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:51,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1382797614, now seen corresponding path program 1 times [2020-10-19 22:31:51,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:51,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356172665] [2020-10-19 22:31:51,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-19 22:31:52,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356172665] [2020-10-19 22:31:52,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:52,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:52,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993144428] [2020-10-19 22:31:52,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:52,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:52,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:52,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:52,079 INFO L87 Difference]: Start difference. First operand 2413 states and 2674 transitions. Second operand 3 states. [2020-10-19 22:31:52,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:52,603 INFO L93 Difference]: Finished difference Result 5522 states and 6115 transitions. [2020-10-19 22:31:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:52,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-10-19 22:31:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:52,617 INFO L225 Difference]: With dead ends: 5522 [2020-10-19 22:31:52,617 INFO L226 Difference]: Without dead ends: 3108 [2020-10-19 22:31:52,620 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 22:31:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2020-10-19 22:31:52,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3104. [2020-10-19 22:31:52,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3104 states. [2020-10-19 22:31:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 3335 transitions. [2020-10-19 22:31:52,671 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 3335 transitions. Word has length 156 [2020-10-19 22:31:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:52,671 INFO L481 AbstractCegarLoop]: Abstraction has 3104 states and 3335 transitions. [2020-10-19 22:31:52,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:52,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 3335 transitions. [2020-10-19 22:31:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-19 22:31:52,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:52,679 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:31:52,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:31:52,679 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:52,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:52,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1169876819, now seen corresponding path program 1 times [2020-10-19 22:31:52,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:52,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338588219] [2020-10-19 22:31:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:52,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338588219] [2020-10-19 22:31:52,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:52,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:52,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555481610] [2020-10-19 22:31:52,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:52,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:52,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:52,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:52,817 INFO L87 Difference]: Start difference. First operand 3104 states and 3335 transitions. Second operand 3 states. [2020-10-19 22:31:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:53,300 INFO L93 Difference]: Finished difference Result 6344 states and 6826 transitions. [2020-10-19 22:31:53,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:53,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2020-10-19 22:31:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:53,313 INFO L225 Difference]: With dead ends: 6344 [2020-10-19 22:31:53,313 INFO L226 Difference]: Without dead ends: 2677 [2020-10-19 22:31:53,317 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 22:31:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2020-10-19 22:31:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2677. [2020-10-19 22:31:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2677 states. [2020-10-19 22:31:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 2861 transitions. [2020-10-19 22:31:53,359 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 2861 transitions. Word has length 206 [2020-10-19 22:31:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:53,360 INFO L481 AbstractCegarLoop]: Abstraction has 2677 states and 2861 transitions. [2020-10-19 22:31:53,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 2861 transitions. [2020-10-19 22:31:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-19 22:31:53,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:53,368 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:53,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:31:53,369 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:53,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:53,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1583438755, now seen corresponding path program 1 times [2020-10-19 22:31:53,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:53,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122455729] [2020-10-19 22:31:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2020-10-19 22:31:53,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122455729] [2020-10-19 22:31:53,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107017592] [2020-10-19 22:31:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:53,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:53,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-19 22:31:53,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:53,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:53,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014512951] [2020-10-19 22:31:53,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:53,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:53,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:53,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:53,675 INFO L87 Difference]: Start difference. First operand 2677 states and 2861 transitions. Second operand 3 states. [2020-10-19 22:31:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:54,214 INFO L93 Difference]: Finished difference Result 5350 states and 5722 transitions. [2020-10-19 22:31:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:54,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2020-10-19 22:31:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:54,216 INFO L225 Difference]: With dead ends: 5350 [2020-10-19 22:31:54,216 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:31:54,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 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 22:31:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:31:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:31:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:31:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:31:54,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 268 [2020-10-19 22:31:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:54,225 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:31:54,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:31:54,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:31:54,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:54,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:31:54,664 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-10-19 22:31:54,834 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-19 22:31:54,840 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-19 22:31:54,841 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,842 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,842 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,842 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-19 22:31:54,842 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-19 22:31:54,843 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-19 22:31:54,843 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-19 22:31:54,843 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:54,843 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:54,844 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-19 22:31:54,844 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,844 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,844 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,844 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-19 22:31:54,844 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-19 22:31:54,845 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-19 22:31:54,845 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-19 22:31:54,845 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-19 22:31:54,845 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,845 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,846 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,846 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-19 22:31:54,846 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-19 22:31:54,846 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-19 22:31:54,846 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-19 22:31:54,846 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-19 22:31:54,847 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-19 22:31:54,847 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-19 22:31:54,847 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-19 22:31:54,847 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,847 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,847 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-19 22:31:54,848 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-19 22:31:54,849 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-19 22:31:54,849 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,849 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,849 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,849 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-19 22:31:54,850 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-19 22:31:54,851 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-19 22:31:54,851 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,851 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,851 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,851 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-19 22:31:54,851 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-19 22:31:54,852 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-19 22:31:54,852 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-19 22:31:54,852 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-19 22:31:54,852 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-19 22:31:54,852 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:31:54,852 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-19 22:31:54,853 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-19 22:31:54,854 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-19 22:31:54,854 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-19 22:31:54,854 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-19 22:31:54,854 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,854 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,854 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,855 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-19 22:31:54,855 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-19 22:31:54,855 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-19 22:31:54,855 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-19 22:31:54,855 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-19 22:31:54,855 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,856 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,856 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,856 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-19 22:31:54,856 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:31:54,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:31:54,857 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-19 22:31:54,857 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-19 22:31:54,857 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-19 22:31:54,857 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-19 22:31:54,857 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-19 22:31:54,857 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:54,858 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:54,858 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-19 22:31:54,858 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-19 22:31:54,858 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-19 22:31:54,858 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:54,859 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:54,860 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-19 22:31:54,860 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:31:54,860 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a28~0 7)) (.cse7 (<= ~a11~0 0)) (.cse0 (<= ~a19~0 0)) (.cse5 (= ~a25~0 1)) (.cse4 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 (<= ~a17~0 7) .cse2) (and (<= 9 ~a28~0) .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse4) (and .cse7 .cse3 .cse5 .cse4) (and .cse0 (<= ~a28~0 9) .cse4) (and (= ~a25~0 ~a11~0) .cse3 .cse1 .cse6 .cse4) (and .cse7 .cse0 .cse5 .cse4 .cse2))) [2020-10-19 22:31:54,860 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,860 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,861 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-19 22:31:54,862 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-19 22:31:54,863 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a28~0 7)) (.cse7 (<= ~a11~0 0)) (.cse0 (<= ~a19~0 0)) (.cse5 (= ~a25~0 1)) (.cse4 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 (<= ~a17~0 7) .cse2) (and (<= 9 ~a28~0) .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse4) (and .cse7 .cse3 .cse5 .cse4) (and .cse0 (<= ~a28~0 9) .cse4) (and (= ~a25~0 ~a11~0) .cse3 .cse1 .cse6 .cse4) (and .cse7 .cse0 .cse5 .cse4 .cse2))) [2020-10-19 22:31:54,863 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-19 22:31:54,864 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,865 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,866 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,867 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-19 22:31:54,868 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,869 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-19 22:31:54,870 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-19 22:31:54,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:31:54 BoogieIcfgContainer [2020-10-19 22:31:54,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:31:54,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:31:54,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:31:54,905 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:31:54,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:41" (3/4) ... [2020-10-19 22:31:54,911 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:31:54,951 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:31:54,953 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:31:54,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:54,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:55,181 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:31:55,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:31:55,184 INFO L168 Benchmark]: Toolchain (without parser) took 16261.65 ms. Allocated memory was 40.9 MB in the beginning and 189.3 MB in the end (delta: 148.4 MB). Free memory was 17.3 MB in the beginning and 100.2 MB in the end (delta: -83.0 MB). Peak memory consumption was 65.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,185 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 31.5 MB. Free memory was 7.4 MB in the beginning and 7.4 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.90 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 16.3 MB in the beginning and 13.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.78 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 13.6 MB in the beginning and 23.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,186 INFO L168 Benchmark]: Boogie Preprocessor took 65.75 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 19.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,187 INFO L168 Benchmark]: RCFGBuilder took 1597.34 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 18.8 MB in the beginning and 26.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,187 INFO L168 Benchmark]: TraceAbstraction took 13426.40 ms. Allocated memory was 54.5 MB in the beginning and 189.3 MB in the end (delta: 134.7 MB). Free memory was 26.2 MB in the beginning and 121.0 MB in the end (delta: -94.8 MB). Peak memory consumption was 118.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,188 INFO L168 Benchmark]: Witness Printer took 277.17 ms. Allocated memory is still 189.3 MB. Free memory was 121.0 MB in the beginning and 100.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:55,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 31.5 MB. Free memory was 7.4 MB in the beginning and 7.4 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 773.90 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 16.3 MB in the beginning and 13.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 110.78 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 13.6 MB in the beginning and 23.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 65.75 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 19.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1597.34 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 18.8 MB in the beginning and 26.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 13426.40 ms. Allocated memory was 54.5 MB in the beginning and 189.3 MB in the end (delta: 134.7 MB). Free memory was 26.2 MB in the beginning and 121.0 MB in the end (delta: -94.8 MB). Peak memory consumption was 118.5 MB. Max. memory is 14.3 GB. * Witness Printer took 277.17 ms. Allocated memory is still 189.3 MB. Free memory was 121.0 MB in the beginning and 100.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 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: ((((((((a19 <= 0 && a25 == 0) && a17 <= 7) && a28 <= 10) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a17 <= 8)) || ((a19 <= 0 && a28 <= 9) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a25 == 0) && a28 <= 7) && a17 <= 8)) || ((((a11 <= 0 && a19 <= 0) && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((a19 <= 0 && a25 == 0) && a17 <= 7) && a28 <= 10) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a17 <= 8)) || ((a19 <= 0 && a28 <= 9) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a25 == 0) && a28 <= 7) && a17 <= 8)) || ((((a11 <= 0 && a19 <= 0) && a25 == 1) && a17 <= 8) && a28 <= 10) - 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: 12.8s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1381 SDtfs, 1451 SDslu, 166 SDs, 0 SdLazy, 4206 SolverSat, 697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1053 GetRequests, 1026 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4395occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1141 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 191 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1326 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2758 NumberOfCodeBlocks, 2758 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2739 ConstructedInterpolants, 0 QuantifiedInterpolants, 761678 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2188 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 1229/1260 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...