./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label25.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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_label25.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 6b2f8a24f3fd4d919c7c93a5d3cb7968f39d430f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 19:45:53,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:45:53,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:45:53,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:45:53,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:45:53,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:45:53,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:45:53,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:45:53,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:45:53,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:45:53,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:45:53,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:45:53,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:45:53,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:45:53,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:45:53,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:45:53,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:45:53,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:45:53,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:45:53,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:45:53,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:45:53,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:45:53,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:45:53,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:45:53,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:45:53,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:45:53,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:45:53,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:45:53,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:45:53,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:45:53,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:45:53,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:45:53,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:45:53,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:45:53,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:45:53,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:45:53,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:45:53,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:45:53,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:45:53,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:45:53,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:45:53,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:45:53,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:45:53,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:45:53,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:45:53,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:45:53,544 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:45:53,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:45:53,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:45:53,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:45:53,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:45:53,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:45:53,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:45:53,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:45:53,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:45:53,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:45:53,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:45:53,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:45:53,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:45:53,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:45:53,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:45:53,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:45:53,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:45:53,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:45:53,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:45:53,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:45:53,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:45:53,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:45:53,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:45:53,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:45:53,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:45:53,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2f8a24f3fd4d919c7c93a5d3cb7968f39d430f [2020-10-25 19:45:53,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:45:53,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:45:53,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:45:53,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:45:53,974 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:45:53,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label25.c [2020-10-25 19:45:54,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c95fb2a/c5375374d3284fc5936f94f823bfb9fd/FLAGd91796c3d [2020-10-25 19:45:54,722 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:45:54,723 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label25.c [2020-10-25 19:45:54,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c95fb2a/c5375374d3284fc5936f94f823bfb9fd/FLAGd91796c3d [2020-10-25 19:45:54,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c95fb2a/c5375374d3284fc5936f94f823bfb9fd [2020-10-25 19:45:54,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:45:54,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:45:54,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:54,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:45:55,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:45:55,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:54" (1/1) ... [2020-10-25 19:45:55,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6001f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55, skipping insertion in model container [2020-10-25 19:45:55,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:54" (1/1) ... [2020-10-25 19:45:55,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:45:55,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:45:55,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:45:55,491 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:45:55,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:45:55,740 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:45:55,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55 WrapperNode [2020-10-25 19:45:55,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:55,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:45:55,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:45:55,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:45:55,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:45:55,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:45:55,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:45:55,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:45:55,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (1/1) ... [2020-10-25 19:45:55,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:45:55,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:45:55,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:45:55,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:45:55,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (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 [2020-10-25 19:45:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:45:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:45:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:45:56,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:45:57,527 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:45:57,527 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:45:57,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:57 BoogieIcfgContainer [2020-10-25 19:45:57,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:45:57,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:45:57,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:45:57,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:45:57,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:45:54" (1/3) ... [2020-10-25 19:45:57,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277bf0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:45:57, skipping insertion in model container [2020-10-25 19:45:57,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:55" (2/3) ... [2020-10-25 19:45:57,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277bf0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:45:57, skipping insertion in model container [2020-10-25 19:45:57,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:57" (3/3) ... [2020-10-25 19:45:57,541 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label25.c [2020-10-25 19:45:57,555 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:45:57,561 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:45:57,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:45:57,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:45:57,628 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:45:57,628 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:45:57,628 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:45:57,629 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:45:57,629 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:45:57,629 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:45:57,629 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:45:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-25 19:45:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-25 19:45:57,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:57,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:57,674 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:57,682 INFO L82 PathProgramCache]: Analyzing trace with hash 975100445, now seen corresponding path program 1 times [2020-10-25 19:45:57,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:57,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103302131] [2020-10-25 19:45:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:58,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103302131] [2020-10-25 19:45:58,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:58,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:58,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027525256] [2020-10-25 19:45:58,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:58,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:58,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:58,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:58,232 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-25 19:45:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:59,669 INFO L93 Difference]: Finished difference Result 597 states and 1031 transitions. [2020-10-25 19:45:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:59,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-10-25 19:45:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:59,689 INFO L225 Difference]: With dead ends: 597 [2020-10-25 19:45:59,689 INFO L226 Difference]: Without dead ends: 305 [2020-10-25 19:45:59,694 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 [2020-10-25 19:45:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-25 19:45:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2020-10-25 19:45:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-25 19:45:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 464 transitions. [2020-10-25 19:45:59,768 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 464 transitions. Word has length 134 [2020-10-25 19:45:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:59,770 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 464 transitions. [2020-10-25 19:45:59,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 464 transitions. [2020-10-25 19:45:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-25 19:45:59,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:59,788 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:59,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:45:59,788 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:59,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2066006181, now seen corresponding path program 1 times [2020-10-25 19:45:59,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:59,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860028451] [2020-10-25 19:45:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:59,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860028451] [2020-10-25 19:45:59,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:59,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:59,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675593054] [2020-10-25 19:45:59,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:59,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:59,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:59,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:59,926 INFO L87 Difference]: Start difference. First operand 305 states and 464 transitions. Second operand 3 states. [2020-10-25 19:46:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:00,514 INFO L93 Difference]: Finished difference Result 599 states and 913 transitions. [2020-10-25 19:46:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:00,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-10-25 19:46:00,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:00,518 INFO L225 Difference]: With dead ends: 599 [2020-10-25 19:46:00,519 INFO L226 Difference]: Without dead ends: 296 [2020-10-25 19:46:00,524 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 [2020-10-25 19:46:00,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-25 19:46:00,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-10-25 19:46:00,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-25 19:46:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 421 transitions. [2020-10-25 19:46:00,564 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 421 transitions. Word has length 145 [2020-10-25 19:46:00,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:00,564 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 421 transitions. [2020-10-25 19:46:00,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 421 transitions. [2020-10-25 19:46:00,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-25 19:46:00,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:00,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:00,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:46:00,573 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:00,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash 738791008, now seen corresponding path program 1 times [2020-10-25 19:46:00,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:00,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255647959] [2020-10-25 19:46:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:00,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255647959] [2020-10-25 19:46:00,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:00,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:46:00,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512957468] [2020-10-25 19:46:00,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:00,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:00,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:00,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:00,728 INFO L87 Difference]: Start difference. First operand 296 states and 421 transitions. Second operand 3 states. [2020-10-25 19:46:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:01,772 INFO L93 Difference]: Finished difference Result 872 states and 1244 transitions. [2020-10-25 19:46:01,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:01,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-10-25 19:46:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:01,778 INFO L225 Difference]: With dead ends: 872 [2020-10-25 19:46:01,779 INFO L226 Difference]: Without dead ends: 578 [2020-10-25 19:46:01,780 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 [2020-10-25 19:46:01,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-25 19:46:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 438. [2020-10-25 19:46:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-10-25 19:46:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 573 transitions. [2020-10-25 19:46:01,801 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 573 transitions. Word has length 152 [2020-10-25 19:46:01,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:01,802 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 573 transitions. [2020-10-25 19:46:01,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 573 transitions. [2020-10-25 19:46:01,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-25 19:46:01,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:01,805 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:01,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 19:46:01,805 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:01,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:01,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1071526163, now seen corresponding path program 1 times [2020-10-25 19:46:01,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:01,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570693577] [2020-10-25 19:46:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:01,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570693577] [2020-10-25 19:46:01,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:01,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:46:01,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133425981] [2020-10-25 19:46:01,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:01,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:01,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:01,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:01,921 INFO L87 Difference]: Start difference. First operand 438 states and 573 transitions. Second operand 3 states. [2020-10-25 19:46:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:03,014 INFO L93 Difference]: Finished difference Result 1017 states and 1348 transitions. [2020-10-25 19:46:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:03,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-10-25 19:46:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:03,020 INFO L225 Difference]: With dead ends: 1017 [2020-10-25 19:46:03,021 INFO L226 Difference]: Without dead ends: 581 [2020-10-25 19:46:03,022 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 [2020-10-25 19:46:03,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-25 19:46:03,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2020-10-25 19:46:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-10-25 19:46:03,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 754 transitions. [2020-10-25 19:46:03,062 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 754 transitions. Word has length 157 [2020-10-25 19:46:03,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:03,062 INFO L481 AbstractCegarLoop]: Abstraction has 579 states and 754 transitions. [2020-10-25 19:46:03,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 754 transitions. [2020-10-25 19:46:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-25 19:46:03,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:03,068 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:03,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:46:03,069 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:03,070 INFO L82 PathProgramCache]: Analyzing trace with hash -709966237, now seen corresponding path program 1 times [2020-10-25 19:46:03,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:03,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184994314] [2020-10-25 19:46:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:03,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184994314] [2020-10-25 19:46:03,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078455311] [2020-10-25 19:46:03,401 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 [2020-10-25 19:46:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:03,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:03,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-25 19:46:03,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:03,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:46:03,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149667650] [2020-10-25 19:46:03,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:03,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:03,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:03,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:03,749 INFO L87 Difference]: Start difference. First operand 579 states and 754 transitions. Second operand 3 states. [2020-10-25 19:46:04,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:04,810 INFO L93 Difference]: Finished difference Result 1582 states and 2046 transitions. [2020-10-25 19:46:04,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:04,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-10-25 19:46:04,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:04,818 INFO L225 Difference]: With dead ends: 1582 [2020-10-25 19:46:04,818 INFO L226 Difference]: Without dead ends: 1005 [2020-10-25 19:46:04,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:04,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2020-10-25 19:46:04,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 861. [2020-10-25 19:46:04,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-25 19:46:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1086 transitions. [2020-10-25 19:46:04,843 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1086 transitions. Word has length 161 [2020-10-25 19:46:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:04,843 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1086 transitions. [2020-10-25 19:46:04,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1086 transitions. [2020-10-25 19:46:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-25 19:46:04,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:04,847 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:05,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:05,063 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:05,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:05,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1549871527, now seen corresponding path program 1 times [2020-10-25 19:46:05,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:05,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874429561] [2020-10-25 19:46:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 19:46:05,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874429561] [2020-10-25 19:46:05,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:05,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:46:05,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978486501] [2020-10-25 19:46:05,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:05,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:05,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:05,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:05,174 INFO L87 Difference]: Start difference. First operand 861 states and 1086 transitions. Second operand 3 states. [2020-10-25 19:46:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:06,130 INFO L93 Difference]: Finished difference Result 2281 states and 2841 transitions. [2020-10-25 19:46:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:06,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-10-25 19:46:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:06,142 INFO L225 Difference]: With dead ends: 2281 [2020-10-25 19:46:06,142 INFO L226 Difference]: Without dead ends: 1422 [2020-10-25 19:46:06,144 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 [2020-10-25 19:46:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2020-10-25 19:46:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1422. [2020-10-25 19:46:06,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2020-10-25 19:46:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1677 transitions. [2020-10-25 19:46:06,209 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1677 transitions. Word has length 165 [2020-10-25 19:46:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:06,210 INFO L481 AbstractCegarLoop]: Abstraction has 1422 states and 1677 transitions. [2020-10-25 19:46:06,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1677 transitions. [2020-10-25 19:46:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-25 19:46:06,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:06,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:06,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 19:46:06,224 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:06,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:06,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1224766354, now seen corresponding path program 1 times [2020-10-25 19:46:06,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:06,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054949045] [2020-10-25 19:46:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-25 19:46:06,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054949045] [2020-10-25 19:46:06,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:06,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:46:06,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780867303] [2020-10-25 19:46:06,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:06,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:06,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:06,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:06,355 INFO L87 Difference]: Start difference. First operand 1422 states and 1677 transitions. Second operand 3 states. [2020-10-25 19:46:07,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:07,353 INFO L93 Difference]: Finished difference Result 3263 states and 3903 transitions. [2020-10-25 19:46:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:07,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-10-25 19:46:07,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:07,362 INFO L225 Difference]: With dead ends: 3263 [2020-10-25 19:46:07,362 INFO L226 Difference]: Without dead ends: 1700 [2020-10-25 19:46:07,364 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 [2020-10-25 19:46:07,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-10-25 19:46:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1700. [2020-10-25 19:46:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-10-25 19:46:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 1872 transitions. [2020-10-25 19:46:07,401 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 1872 transitions. Word has length 187 [2020-10-25 19:46:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:07,401 INFO L481 AbstractCegarLoop]: Abstraction has 1700 states and 1872 transitions. [2020-10-25 19:46:07,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 1872 transitions. [2020-10-25 19:46:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-25 19:46:07,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:07,407 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:07,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 19:46:07,408 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:07,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1298776423, now seen corresponding path program 1 times [2020-10-25 19:46:07,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:07,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830806226] [2020-10-25 19:46:07,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:07,627 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-25 19:46:07,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830806226] [2020-10-25 19:46:07,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337599243] [2020-10-25 19:46:07,628 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 [2020-10-25 19:46:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:07,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:07,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-25 19:46:07,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:07,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:46:07,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145386534] [2020-10-25 19:46:07,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:07,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:07,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:07,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:07,936 INFO L87 Difference]: Start difference. First operand 1700 states and 1872 transitions. Second operand 3 states. [2020-10-25 19:46:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:08,796 INFO L93 Difference]: Finished difference Result 3256 states and 3597 transitions. [2020-10-25 19:46:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:08,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-10-25 19:46:08,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:08,798 INFO L225 Difference]: With dead ends: 3256 [2020-10-25 19:46:08,798 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:46:08,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:46:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:46:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:46:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:46:08,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2020-10-25 19:46:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:08,819 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:46:08,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:46:08,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:46:09,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:09,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:46:09,209 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-10-25 19:46:09,371 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-10-25 19:46:09,377 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,378 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,379 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,379 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-25 19:46:09,379 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-25 19:46:09,379 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-25 19:46:09,382 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-25 19:46:09,383 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-25 19:46:09,384 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-25 19:46:09,384 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-25 19:46:09,384 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-25 19:46:09,388 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,389 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-25 19:46:09,390 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,391 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,393 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,393 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-25 19:46:09,393 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-25 19:46:09,393 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-25 19:46:09,393 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-25 19:46:09,393 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-25 19:46:09,395 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-25 19:46:09,395 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-25 19:46:09,395 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-25 19:46:09,395 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,395 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,395 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-25 19:46:09,396 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,397 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,398 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,398 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-25 19:46:09,398 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-25 19:46:09,398 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-25 19:46:09,399 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-25 19:46:09,399 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-25 19:46:09,399 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-25 19:46:09,399 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-25 19:46:09,399 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,400 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-25 19:46:09,401 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-25 19:46:09,402 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-25 19:46:09,403 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-25 19:46:09,403 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-25 19:46:09,403 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-25 19:46:09,403 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-25 19:46:09,403 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 19:46:09,403 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 (<= ~a28~0 7) .cse1) (and (<= ~a19~0 0) .cse1 .cse2) (and .cse0 (<= 8 ~a17~0) .cse1) (and .cse0 .cse1 (<= ~a25~0 0) .cse2))) [2020-10-25 19:46:09,404 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,404 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,404 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-25 19:46:09,404 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-25 19:46:09,406 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-25 19:46:09,406 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-25 19:46:09,406 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-25 19:46:09,407 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-25 19:46:09,408 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-25 19:46:09,410 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-25 19:46:09,410 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 (<= ~a28~0 7) .cse1) (and (<= ~a19~0 0) .cse1 .cse2) (and .cse0 (<= 8 ~a17~0) .cse1) (and .cse0 .cse1 (<= ~a25~0 0) .cse2))) [2020-10-25 19:46:09,410 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,411 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,411 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-25 19:46:09,411 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-25 19:46:09,411 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-25 19:46:09,411 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-25 19:46:09,413 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-25 19:46:09,414 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-25 19:46:09,414 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-25 19:46:09,414 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,414 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-25 19:46:09,415 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,416 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,417 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,418 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,419 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:09,420 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-25 19:46:09,420 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-25 19:46:09,420 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-25 19:46:09,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:46:09 BoogieIcfgContainer [2020-10-25 19:46:09,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:46:09,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:46:09,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:46:09,454 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:46:09,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:57" (3/4) ... [2020-10-25 19:46:09,458 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:46:09,492 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:46:09,494 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:46:09,495 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:46:09,496 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:46:09,686 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:46:09,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:46:09,687 INFO L168 Benchmark]: Toolchain (without parser) took 14699.77 ms. Allocated memory was 58.7 MB in the beginning and 192.9 MB in the end (delta: 134.2 MB). Free memory was 34.1 MB in the beginning and 109.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,688 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 44.0 MB. Free memory is still 23.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:46:09,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.16 ms. Allocated memory is still 58.7 MB. Free memory was 33.5 MB in the beginning and 35.0 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.50 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 29.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,689 INFO L168 Benchmark]: Boogie Preprocessor took 86.71 ms. Allocated memory is still 58.7 MB. Free memory was 29.4 MB in the beginning and 25.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,689 INFO L168 Benchmark]: RCFGBuilder took 1594.56 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 25.0 MB in the beginning and 31.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,690 INFO L168 Benchmark]: TraceAbstraction took 11920.95 ms. Allocated memory was 73.4 MB in the beginning and 192.9 MB in the end (delta: 119.5 MB). Free memory was 31.2 MB in the beginning and 125.5 MB in the end (delta: -94.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,690 INFO L168 Benchmark]: Witness Printer took 231.80 ms. Allocated memory is still 192.9 MB. Free memory was 125.5 MB in the beginning and 109.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:09,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 44.0 MB. Free memory is still 23.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 746.16 ms. Allocated memory is still 58.7 MB. Free memory was 33.5 MB in the beginning and 35.0 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.50 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 29.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.71 ms. Allocated memory is still 58.7 MB. Free memory was 29.4 MB in the beginning and 25.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1594.56 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 25.0 MB in the beginning and 31.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11920.95 ms. Allocated memory was 73.4 MB in the beginning and 192.9 MB in the end (delta: 119.5 MB). Free memory was 31.2 MB in the beginning and 125.5 MB in the end (delta: -94.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Witness Printer took 231.80 ms. Allocated memory is still 192.9 MB. Free memory was 125.5 MB in the beginning and 109.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 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 == 1 && a28 <= 7) && a17 <= 8) || ((a19 <= 0 && a17 <= 8) && a28 <= 10)) || ((a19 == 1 && 8 <= a17) && a17 <= 8)) || (((a19 == 1 && a17 <= 8) && a25 <= 0) && a28 <= 10) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((a19 == 1 && a28 <= 7) && a17 <= 8) || ((a19 <= 0 && a17 <= 8) && a28 <= 10)) || ((a19 == 1 && 8 <= a17) && a17 <= 8)) || (((a19 == 1 && a17 <= 8) && a25 <= 0) && 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: 11.4s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 703 SDtfs, 929 SDslu, 85 SDs, 0 SdLazy, 2616 SolverSat, 515 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1700occurred 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: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 286 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 33 NumberOfFragments, 89 HoareAnnotationTreeSize, 3 FomulaSimplifications, 396 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1682 NumberOfCodeBlocks, 1682 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1672 ConstructedInterpolants, 0 QuantifiedInterpolants, 854390 SizeOfPredicates, 2 NumberOfNonLiveVariables, 703 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 519/543 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...