./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label49.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/Problem01_label49.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 f514d3d8f5e2f80de860fac75f6def81c567cc9e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:45:03,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:45:03,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:45:03,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:45:03,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:45:03,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:45:03,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:45:03,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:45:03,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:45:03,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:45:03,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:45:03,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:45:03,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:45:03,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:45:03,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:45:03,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:45:03,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:45:03,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:45:03,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:45:03,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:45:03,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:45:03,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:45:03,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:45:03,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:45:03,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:45:03,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:45:03,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:45:03,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:45:03,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:45:03,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:45:03,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:45:03,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:45:03,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:45:03,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:45:03,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:45:03,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:45:03,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:45:03,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:45:03,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:45:03,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:45:03,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:45:03,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:45:03,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:45:03,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:45:03,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:45:03,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:45:03,661 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:45:03,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:45:03,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:45:03,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:45:03,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:45:03,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:45:03,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:45:03,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:45:03,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:45:03,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:45:03,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:45:03,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:45:03,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:45:03,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:45:03,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:45:03,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:45:03,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:45:03,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:45:03,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:45:03,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:45:03,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:45:03,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:45:03,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:45:03,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:45:03,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:45:03,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f514d3d8f5e2f80de860fac75f6def81c567cc9e [2020-10-25 19:45:04,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:45:04,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:45:04,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:45:04,142 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:45:04,143 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:45:04,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label49.c [2020-10-25 19:45:04,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbcf67360/1406a7b1091947f781a150e648f7d40a/FLAG8a7ad25e5 [2020-10-25 19:45:05,015 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:45:05,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label49.c [2020-10-25 19:45:05,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbcf67360/1406a7b1091947f781a150e648f7d40a/FLAG8a7ad25e5 [2020-10-25 19:45:05,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbcf67360/1406a7b1091947f781a150e648f7d40a [2020-10-25 19:45:05,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:45:05,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:45:05,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:05,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:45:05,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:45:05,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:05" (1/1) ... [2020-10-25 19:45:05,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19561cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:05, skipping insertion in model container [2020-10-25 19:45:05,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:05" (1/1) ... [2020-10-25 19:45:05,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:45:05,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:45:05,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:45:05,856 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:45:06,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:45:06,121 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:45:06,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06 WrapperNode [2020-10-25 19:45:06,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:06,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:45:06,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:45:06,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:45:06,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:45:06,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:45:06,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:45:06,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:45:06,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (1/1) ... [2020-10-25 19:45:06,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:45:06,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:45:06,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:45:06,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:45:06,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (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 19:45:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:45:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:45:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:45:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:45:07,917 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:45:07,918 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:45:07,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:07 BoogieIcfgContainer [2020-10-25 19:45:07,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:45:07,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:45:07,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:45:07,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:45:07,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:45:05" (1/3) ... [2020-10-25 19:45:07,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258517a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:45:07, skipping insertion in model container [2020-10-25 19:45:07,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:06" (2/3) ... [2020-10-25 19:45:07,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258517a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:45:07, skipping insertion in model container [2020-10-25 19:45:07,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:07" (3/3) ... [2020-10-25 19:45:07,930 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label49.c [2020-10-25 19:45:07,944 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:45:07,949 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:45:07,964 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:45:07,994 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:45:07,994 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:45:07,995 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:45:07,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:45:07,995 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:45:07,995 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:45:07,995 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:45:07,996 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:45:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-25 19:45:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-25 19:45:08,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:08,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:08,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:08,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:08,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1165368418, now seen corresponding path program 1 times [2020-10-25 19:45:08,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:08,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050645421] [2020-10-25 19:45:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:08,600 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 19:45:08,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050645421] [2020-10-25 19:45:08,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:08,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:08,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617209929] [2020-10-25 19:45:08,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:08,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:08,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:08,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:08,638 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-10-25 19:45:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:09,715 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-10-25 19:45:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:09,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-25 19:45:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:09,734 INFO L225 Difference]: With dead ends: 529 [2020-10-25 19:45:09,735 INFO L226 Difference]: Without dead ends: 266 [2020-10-25 19:45:09,739 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 19:45:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-25 19:45:09,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-25 19:45:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-25 19:45:09,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-10-25 19:45:09,831 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 107 [2020-10-25 19:45:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:09,832 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-10-25 19:45:09,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-10-25 19:45:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-25 19:45:09,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:09,835 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-25 19:45:09,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:45:09,836 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:09,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:09,837 INFO L82 PathProgramCache]: Analyzing trace with hash 2143246596, now seen corresponding path program 1 times [2020-10-25 19:45:09,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:09,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616722360] [2020-10-25 19:45:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:09,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616722360] [2020-10-25 19:45:09,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:09,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:09,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146703600] [2020-10-25 19:45:09,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:09,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:09,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:09,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:09,936 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-10-25 19:45:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:10,703 INFO L93 Difference]: Finished difference Result 794 states and 1172 transitions. [2020-10-25 19:45:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:10,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-25 19:45:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:10,710 INFO L225 Difference]: With dead ends: 794 [2020-10-25 19:45:10,710 INFO L226 Difference]: Without dead ends: 530 [2020-10-25 19:45:10,712 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 19:45:10,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-25 19:45:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 528. [2020-10-25 19:45:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-25 19:45:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-10-25 19:45:10,745 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 112 [2020-10-25 19:45:10,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:10,746 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-10-25 19:45:10,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-10-25 19:45:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-25 19:45:10,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:10,760 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:10,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:45:10,760 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:10,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1801462759, now seen corresponding path program 1 times [2020-10-25 19:45:10,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:10,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963924728] [2020-10-25 19:45:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:10,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963924728] [2020-10-25 19:45:10,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:10,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:10,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55534635] [2020-10-25 19:45:10,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:45:10,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:10,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:45:10,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:10,882 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 4 states. [2020-10-25 19:45:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:12,126 INFO L93 Difference]: Finished difference Result 1840 states and 2594 transitions. [2020-10-25 19:45:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:45:12,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-10-25 19:45:12,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:12,136 INFO L225 Difference]: With dead ends: 1840 [2020-10-25 19:45:12,136 INFO L226 Difference]: Without dead ends: 1314 [2020-10-25 19:45:12,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-25 19:45:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-10-25 19:45:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-25 19:45:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1707 transitions. [2020-10-25 19:45:12,204 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1707 transitions. Word has length 119 [2020-10-25 19:45:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:12,205 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1707 transitions. [2020-10-25 19:45:12,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:45:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1707 transitions. [2020-10-25 19:45:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-25 19:45:12,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:12,211 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-25 19:45:12,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 19:45:12,212 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:12,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1005582589, now seen corresponding path program 1 times [2020-10-25 19:45:12,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:12,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644387221] [2020-10-25 19:45:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:12,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644387221] [2020-10-25 19:45:12,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:12,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:12,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984962516] [2020-10-25 19:45:12,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:12,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:12,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:12,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:12,419 INFO L87 Difference]: Start difference. First operand 1314 states and 1707 transitions. Second operand 3 states. [2020-10-25 19:45:13,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:13,275 INFO L93 Difference]: Finished difference Result 3281 states and 4194 transitions. [2020-10-25 19:45:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:13,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-10-25 19:45:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:13,288 INFO L225 Difference]: With dead ends: 3281 [2020-10-25 19:45:13,288 INFO L226 Difference]: Without dead ends: 1969 [2020-10-25 19:45:13,291 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 19:45:13,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-10-25 19:45:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2020-10-25 19:45:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-10-25 19:45:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2286 transitions. [2020-10-25 19:45:13,363 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2286 transitions. Word has length 122 [2020-10-25 19:45:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:13,365 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2286 transitions. [2020-10-25 19:45:13,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2286 transitions. [2020-10-25 19:45:13,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-25 19:45:13,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:13,374 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:13,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:45:13,375 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:13,375 INFO L82 PathProgramCache]: Analyzing trace with hash 580331919, now seen corresponding path program 1 times [2020-10-25 19:45:13,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:13,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007895057] [2020-10-25 19:45:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-25 19:45:13,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007895057] [2020-10-25 19:45:13,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:13,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:45:13,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956754346] [2020-10-25 19:45:13,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:13,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:13,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:13,529 INFO L87 Difference]: Start difference. First operand 1838 states and 2286 transitions. Second operand 3 states. [2020-10-25 19:45:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:14,387 INFO L93 Difference]: Finished difference Result 4198 states and 5306 transitions. [2020-10-25 19:45:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:14,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-10-25 19:45:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:14,404 INFO L225 Difference]: With dead ends: 4198 [2020-10-25 19:45:14,404 INFO L226 Difference]: Without dead ends: 2362 [2020-10-25 19:45:14,407 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 19:45:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-10-25 19:45:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-10-25 19:45:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-10-25 19:45:14,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2694 transitions. [2020-10-25 19:45:14,487 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2694 transitions. Word has length 123 [2020-10-25 19:45:14,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:14,488 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2694 transitions. [2020-10-25 19:45:14,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:14,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2694 transitions. [2020-10-25 19:45:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-25 19:45:14,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:14,495 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-25 19:45:14,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 19:45:14,495 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:14,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:14,496 INFO L82 PathProgramCache]: Analyzing trace with hash -801449161, now seen corresponding path program 1 times [2020-10-25 19:45:14,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:14,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492360938] [2020-10-25 19:45:14,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:45:14,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492360938] [2020-10-25 19:45:14,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477909984] [2020-10-25 19:45:14,637 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 19:45:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:14,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:45:14,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-25 19:45:15,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:15,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 19:45:15,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166364106] [2020-10-25 19:45:15,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:15,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:15,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:15,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:15,150 INFO L87 Difference]: Start difference. First operand 2362 states and 2694 transitions. Second operand 3 states. [2020-10-25 19:45:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:15,848 INFO L93 Difference]: Finished difference Result 5377 states and 6183 transitions. [2020-10-25 19:45:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:15,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-25 19:45:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:15,864 INFO L225 Difference]: With dead ends: 5377 [2020-10-25 19:45:15,864 INFO L226 Difference]: Without dead ends: 3148 [2020-10-25 19:45:15,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:45:15,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-10-25 19:45:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2493. [2020-10-25 19:45:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-10-25 19:45:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 2832 transitions. [2020-10-25 19:45:15,952 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 2832 transitions. Word has length 126 [2020-10-25 19:45:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:15,953 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 2832 transitions. [2020-10-25 19:45:15,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 2832 transitions. [2020-10-25 19:45:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-25 19:45:15,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:15,960 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-25 19:45:16,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-25 19:45:16,176 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:16,178 INFO L82 PathProgramCache]: Analyzing trace with hash -171810114, now seen corresponding path program 1 times [2020-10-25 19:45:16,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:16,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524048251] [2020-10-25 19:45:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-25 19:45:16,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524048251] [2020-10-25 19:45:16,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:16,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:16,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848938411] [2020-10-25 19:45:16,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:45:16,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:16,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:45:16,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:16,267 INFO L87 Difference]: Start difference. First operand 2493 states and 2832 transitions. Second operand 4 states. [2020-10-25 19:45:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:17,105 INFO L93 Difference]: Finished difference Result 4853 states and 5528 transitions. [2020-10-25 19:45:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:45:17,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-25 19:45:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:17,120 INFO L225 Difference]: With dead ends: 4853 [2020-10-25 19:45:17,120 INFO L226 Difference]: Without dead ends: 2493 [2020-10-25 19:45:17,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:17,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-25 19:45:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2020-10-25 19:45:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-10-25 19:45:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 2802 transitions. [2020-10-25 19:45:17,182 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 2802 transitions. Word has length 166 [2020-10-25 19:45:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:17,182 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 2802 transitions. [2020-10-25 19:45:17,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:45:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 2802 transitions. [2020-10-25 19:45:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-25 19:45:17,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:17,190 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:17,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 19:45:17,190 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:17,191 INFO L82 PathProgramCache]: Analyzing trace with hash -894415832, now seen corresponding path program 1 times [2020-10-25 19:45:17,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:17,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140492997] [2020-10-25 19:45:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-25 19:45:17,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140492997] [2020-10-25 19:45:17,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:17,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:17,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312893663] [2020-10-25 19:45:17,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:45:17,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:17,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:45:17,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:17,410 INFO L87 Difference]: Start difference. First operand 2493 states and 2802 transitions. Second operand 4 states. [2020-10-25 19:45:18,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:18,380 INFO L93 Difference]: Finished difference Result 4853 states and 5468 transitions. [2020-10-25 19:45:18,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:45:18,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-10-25 19:45:18,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:18,392 INFO L225 Difference]: With dead ends: 4853 [2020-10-25 19:45:18,392 INFO L226 Difference]: Without dead ends: 2493 [2020-10-25 19:45:18,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:45:18,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-25 19:45:18,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2020-10-25 19:45:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-10-25 19:45:18,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 2781 transitions. [2020-10-25 19:45:18,450 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 2781 transitions. Word has length 195 [2020-10-25 19:45:18,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:18,450 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 2781 transitions. [2020-10-25 19:45:18,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:45:18,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 2781 transitions. [2020-10-25 19:45:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-25 19:45:18,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:18,458 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:18,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 19:45:18,458 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:18,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:18,459 INFO L82 PathProgramCache]: Analyzing trace with hash -949728721, now seen corresponding path program 1 times [2020-10-25 19:45:18,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:18,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034173750] [2020-10-25 19:45:18,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-25 19:45:18,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034173750] [2020-10-25 19:45:18,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:18,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:18,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960459938] [2020-10-25 19:45:18,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:18,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:18,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:18,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:18,635 INFO L87 Difference]: Start difference. First operand 2493 states and 2781 transitions. Second operand 3 states. [2020-10-25 19:45:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:19,264 INFO L93 Difference]: Finished difference Result 5377 states and 6035 transitions. [2020-10-25 19:45:19,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:19,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-10-25 19:45:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:19,282 INFO L225 Difference]: With dead ends: 5377 [2020-10-25 19:45:19,282 INFO L226 Difference]: Without dead ends: 3017 [2020-10-25 19:45:19,287 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 19:45:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-10-25 19:45:19,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 1838. [2020-10-25 19:45:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-10-25 19:45:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2067 transitions. [2020-10-25 19:45:19,340 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2067 transitions. Word has length 212 [2020-10-25 19:45:19,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:19,341 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2067 transitions. [2020-10-25 19:45:19,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2067 transitions. [2020-10-25 19:45:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-25 19:45:19,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:19,352 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:19,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 19:45:19,353 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:19,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:19,354 INFO L82 PathProgramCache]: Analyzing trace with hash -262136947, now seen corresponding path program 1 times [2020-10-25 19:45:19,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:19,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134689836] [2020-10-25 19:45:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-25 19:45:19,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134689836] [2020-10-25 19:45:19,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:45:19,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:45:19,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128622194] [2020-10-25 19:45:19,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:19,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:19,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:19,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:45:19,539 INFO L87 Difference]: Start difference. First operand 1838 states and 2067 transitions. Second operand 3 states. [2020-10-25 19:45:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:20,131 INFO L93 Difference]: Finished difference Result 3674 states and 4137 transitions. [2020-10-25 19:45:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:20,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-10-25 19:45:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:20,140 INFO L225 Difference]: With dead ends: 3674 [2020-10-25 19:45:20,141 INFO L226 Difference]: Without dead ends: 1969 [2020-10-25 19:45:20,144 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 19:45:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-10-25 19:45:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1969. [2020-10-25 19:45:20,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-10-25 19:45:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2167 transitions. [2020-10-25 19:45:20,194 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2167 transitions. Word has length 255 [2020-10-25 19:45:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:20,195 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2167 transitions. [2020-10-25 19:45:20,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2167 transitions. [2020-10-25 19:45:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-25 19:45:20,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:20,206 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-25 19:45:20,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 19:45:20,207 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1352416430, now seen corresponding path program 1 times [2020-10-25 19:45:20,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:20,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036377405] [2020-10-25 19:45:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 250 proven. 38 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-25 19:45:20,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036377405] [2020-10-25 19:45:20,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254103131] [2020-10-25 19:45:20,607 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 19:45:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:20,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:45:20,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-10-25 19:45:20,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:20,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 19:45:20,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674220221] [2020-10-25 19:45:20,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:20,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:20,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:20,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:45:20,907 INFO L87 Difference]: Start difference. First operand 1969 states and 2167 transitions. Second operand 3 states. [2020-10-25 19:45:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:21,505 INFO L93 Difference]: Finished difference Result 4329 states and 4820 transitions. [2020-10-25 19:45:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:21,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2020-10-25 19:45:21,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:21,518 INFO L225 Difference]: With dead ends: 4329 [2020-10-25 19:45:21,518 INFO L226 Difference]: Without dead ends: 2493 [2020-10-25 19:45:21,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:45:21,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-25 19:45:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2362. [2020-10-25 19:45:21,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-10-25 19:45:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2635 transitions. [2020-10-25 19:45:21,574 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2635 transitions. Word has length 268 [2020-10-25 19:45:21,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:21,575 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2635 transitions. [2020-10-25 19:45:21,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:21,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2635 transitions. [2020-10-25 19:45:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-25 19:45:21,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:45:21,583 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:45:21,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:21,797 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:45:21,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:45:21,798 INFO L82 PathProgramCache]: Analyzing trace with hash 793191510, now seen corresponding path program 1 times [2020-10-25 19:45:21,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:45:21,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136547654] [2020-10-25 19:45:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:45:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 228 proven. 170 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-25 19:45:22,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136547654] [2020-10-25 19:45:22,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527171306] [2020-10-25 19:45:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:45:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:45:22,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:45:22,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:45:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-25 19:45:22,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:45:22,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-10-25 19:45:22,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228560675] [2020-10-25 19:45:22,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:45:22,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:45:22,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:45:22,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:45:22,604 INFO L87 Difference]: Start difference. First operand 2362 states and 2635 transitions. Second operand 3 states. [2020-10-25 19:45:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:45:23,225 INFO L93 Difference]: Finished difference Result 4982 states and 5598 transitions. [2020-10-25 19:45:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:45:23,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2020-10-25 19:45:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:45:23,227 INFO L225 Difference]: With dead ends: 4982 [2020-10-25 19:45:23,227 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:45:23,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:45:23,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:45:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:45:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:45:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:45:23,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 277 [2020-10-25 19:45:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:45:23,234 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:45:23,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:45:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:45:23,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:45:23,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 19:45:23,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:45:23,714 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,714 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,714 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,714 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-25 19:45:23,715 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-25 19:45:23,716 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-25 19:45:23,717 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-25 19:45:23,718 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 19:45:23,718 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-25 19:45:23,718 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-25 19:45:23,718 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,718 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,719 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,719 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,719 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,720 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,720 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-25 19:45:23,720 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-25 19:45:23,723 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-25 19:45:23,723 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-25 19:45:23,723 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-25 19:45:23,723 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-25 19:45:23,724 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-25 19:45:23,724 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-25 19:45:23,724 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-25 19:45:23,724 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-25 19:45:23,724 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,725 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,725 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,725 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,725 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,725 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,725 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-25 19:45:23,726 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-25 19:45:23,727 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-25 19:45:23,727 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-25 19:45:23,727 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-25 19:45:23,727 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-25 19:45:23,727 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-25 19:45:23,727 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-25 19:45:23,728 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-25 19:45:23,729 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,729 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,729 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,729 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,729 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,729 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-25 19:45:23,730 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-25 19:45:23,730 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-25 19:45:23,730 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-25 19:45:23,730 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-25 19:45:23,730 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-25 19:45:23,731 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-25 19:45:23,731 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-25 19:45:23,731 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-25 19:45:23,732 INFO L270 CegarLoopResult]: At program point L576(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6)) (.cse1 (<= 15 ~a8~0))) (or (and .cse0 (<= ~a8~0 13)) (<= ~a16~0 5) (and .cse0 .cse1) (and (= ~a21~0 1) (= ~a20~0 1) .cse1))) [2020-10-25 19:45:23,732 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,732 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,732 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,732 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,732 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,733 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-25 19:45:23,733 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-25 19:45:23,733 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-25 19:45:23,733 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-25 19:45:23,733 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-25 19:45:23,733 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-25 19:45:23,734 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-25 19:45:23,735 INFO L277 CegarLoopResult]: At program point L579(lines 579 596) the Hoare annotation is: true [2020-10-25 19:45:23,735 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,735 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,735 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,735 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,735 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-25 19:45:23,736 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,737 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,738 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-25 19:45:23,738 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,738 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-25 19:45:23,738 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-25 19:45:23,738 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-25 19:45:23,738 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-25 19:45:23,739 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-25 19:45:23,739 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-25 19:45:23,739 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-25 19:45:23,739 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-25 19:45:23,739 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-25 19:45:23,739 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-25 19:45:23,740 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-25 19:45:23,740 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-25 19:45:23,740 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-25 19:45:23,740 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,741 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6)) (.cse1 (<= 15 ~a8~0))) (or (and .cse0 (<= ~a8~0 13)) (<= ~a16~0 5) (and .cse0 .cse1) (and (= ~a21~0 1) (= ~a20~0 1) .cse1))) [2020-10-25 19:45:23,741 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,741 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,742 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,742 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,742 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-25 19:45:23,742 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-25 19:45:23,742 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-25 19:45:23,742 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-25 19:45:23,743 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-25 19:45:23,743 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-25 19:45:23,743 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-25 19:45:23,743 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:45:23,743 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-25 19:45:23,743 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,744 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,744 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,744 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,744 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,744 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-25 19:45:23,744 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-25 19:45:23,745 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-25 19:45:23,745 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-25 19:45:23,745 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-25 19:45:23,745 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-25 19:45:23,745 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-25 19:45:23,745 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-25 19:45:23,746 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-25 19:45:23,746 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-25 19:45:23,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:45:23,746 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-25 19:45:23,746 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-25 19:45:23,746 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,747 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-25 19:45:23,748 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-25 19:45:23,748 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-25 19:45:23,748 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-25 19:45:23,748 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-25 19:45:23,748 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-25 19:45:23,749 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-25 19:45:23,749 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-25 19:45:23,749 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-25 19:45:23,749 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-25 19:45:23,749 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-25 19:45:23,749 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-25 19:45:23,750 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:45:23,750 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 19:45:23,750 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,750 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,750 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,750 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-25 19:45:23,751 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-25 19:45:23,752 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-25 19:45:23,752 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-25 19:45:23,752 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-25 19:45:23,752 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-25 19:45:23,752 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-25 19:45:23,752 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-25 19:45:23,753 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-25 19:45:23,753 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-25 19:45:23,753 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-25 19:45:23,753 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-25 19:45:23,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:45:23 BoogieIcfgContainer [2020-10-25 19:45:23,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:45:23,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:45:23,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:45:23,786 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:45:23,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:45:07" (3/4) ... [2020-10-25 19:45:23,790 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:45:23,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:45:23,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:45:23,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:45:23,828 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:45:24,010 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:45:24,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:45:24,012 INFO L168 Benchmark]: Toolchain (without parser) took 18808.15 ms. Allocated memory was 46.1 MB in the beginning and 339.7 MB in the end (delta: 293.6 MB). Free memory was 28.4 MB in the beginning and 265.3 MB in the end (delta: -236.9 MB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,013 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 37.7 MB. Free memory was 20.7 MB in the beginning and 20.6 MB in the end (delta: 22.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:45:24,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 908.68 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 36.4 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.15 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 30.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,014 INFO L168 Benchmark]: Boogie Preprocessor took 88.58 ms. Allocated memory is still 56.6 MB. Free memory was 30.6 MB in the beginning and 26.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,014 INFO L168 Benchmark]: RCFGBuilder took 1578.75 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 26.2 MB in the beginning and 43.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,015 INFO L168 Benchmark]: TraceAbstraction took 15862.49 ms. Allocated memory was 71.3 MB in the beginning and 339.7 MB in the end (delta: 268.4 MB). Free memory was 43.5 MB in the beginning and 281.0 MB in the end (delta: -237.5 MB). Peak memory consumption was 202.0 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,015 INFO L168 Benchmark]: Witness Printer took 225.33 ms. Allocated memory is still 339.7 MB. Free memory was 281.0 MB in the beginning and 265.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:45:24,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 37.7 MB. Free memory was 20.7 MB in the beginning and 20.6 MB in the end (delta: 22.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 908.68 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 36.4 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.15 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 30.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.58 ms. Allocated memory is still 56.6 MB. Free memory was 30.6 MB in the beginning and 26.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1578.75 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 26.2 MB in the beginning and 43.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15862.49 ms. Allocated memory was 71.3 MB in the beginning and 339.7 MB in the end (delta: 268.4 MB). Free memory was 43.5 MB in the beginning and 281.0 MB in the end (delta: -237.5 MB). Peak memory consumption was 202.0 MB. Max. memory is 16.1 GB. * Witness Printer took 225.33 ms. Allocated memory is still 339.7 MB. Free memory was 281.0 MB in the beginning and 265.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 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: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((a16 == 6 && a8 <= 13) || a16 <= 5) || (a16 == 6 && 15 <= a8)) || ((a21 == 1 && a20 == 1) && 15 <= a8) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((a16 == 6 && a8 <= 13) || a16 <= 5) || (a16 == 6 && 15 <= a8)) || ((a21 == 1 && a20 == 1) && 15 <= a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.4s, OverallIterations: 12, TraceHistogramMax: 8, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 690 SDtfs, 1878 SDslu, 71 SDs, 0 SdLazy, 4459 SolverSat, 750 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 706 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2493occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 2098 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 57 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2254 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2753 NumberOfCodeBlocks, 2753 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2738 ConstructedInterpolants, 0 QuantifiedInterpolants, 1665784 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1362 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 2427/2638 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...