./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label27.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/Problem10_label27.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 c5e3875551eafe0fa0c925ac4938c17ca6705d7b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:27:02,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:27:02,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:27:02,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:27:02,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:27:02,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:27:02,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:27:02,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:27:02,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:27:02,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:27:02,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:27:02,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:27:02,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:27:02,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:27:02,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:27:02,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:27:02,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:27:02,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:27:02,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:27:02,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:27:02,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:27:02,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:27:02,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:27:02,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:27:02,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:27:02,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:27:02,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:27:02,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:27:02,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:27:02,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:27:02,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:27:02,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:27:02,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:27:02,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:27:02,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:27:02,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:27:02,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:27:02,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:27:02,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:27:02,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:27:02,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:27:02,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:27:02,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:27:02,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:27:02,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:27:02,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:27:02,481 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:27:02,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:27:02,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:27:02,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:27:02,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:27:02,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:27:02,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:27:02,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:27:02,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:27:02,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:27:02,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:27:02,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:27:02,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:27:02,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:27:02,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:27:02,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:27:02,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:27:02,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:27:02,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:27:02,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:27:02,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:27:02,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:27:02,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:27:02,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:27:02,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:27:02,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e3875551eafe0fa0c925ac4938c17ca6705d7b [2020-10-25 20:27:02,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:27:02,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:27:02,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:27:02,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:27:02,982 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:27:02,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2020-10-25 20:27:03,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a782fb34/210a995f691f4231bad8259939222a95/FLAGde4bf7fc0 [2020-10-25 20:27:03,843 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:27:03,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2020-10-25 20:27:03,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a782fb34/210a995f691f4231bad8259939222a95/FLAGde4bf7fc0 [2020-10-25 20:27:04,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a782fb34/210a995f691f4231bad8259939222a95 [2020-10-25 20:27:04,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:27:04,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:27:04,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:27:04,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:27:04,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:27:04,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:27:04" (1/1) ... [2020-10-25 20:27:04,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408ed381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:04, skipping insertion in model container [2020-10-25 20:27:04,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:27:04" (1/1) ... [2020-10-25 20:27:04,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:27:04,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:27:04,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:27:04,835 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:27:05,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:27:05,075 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:27:05,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05 WrapperNode [2020-10-25 20:27:05,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:27:05,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:27:05,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:27:05,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:27:05,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:27:05,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:27:05,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:27:05,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:27:05,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (1/1) ... [2020-10-25 20:27:05,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:27:05,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:27:05,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:27:05,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:27:05,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (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 20:27:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:27:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:27:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:27:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:27:06,924 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:27:06,925 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:27:06,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:27:06 BoogieIcfgContainer [2020-10-25 20:27:06,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:27:06,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:27:06,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:27:06,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:27:06,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:27:04" (1/3) ... [2020-10-25 20:27:06,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d37c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:27:06, skipping insertion in model container [2020-10-25 20:27:06,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:27:05" (2/3) ... [2020-10-25 20:27:06,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d37c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:27:06, skipping insertion in model container [2020-10-25 20:27:06,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:27:06" (3/3) ... [2020-10-25 20:27:06,943 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c [2020-10-25 20:27:06,955 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:27:06,961 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:27:06,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:27:07,005 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:27:07,006 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:27:07,006 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:27:07,006 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:27:07,006 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:27:07,007 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:27:07,007 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:27:07,007 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:27:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-25 20:27:07,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-25 20:27:07,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:07,040 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] [2020-10-25 20:27:07,040 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:07,048 INFO L82 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2020-10-25 20:27:07,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:07,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135699431] [2020-10-25 20:27:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:07,418 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 20:27:07,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135699431] [2020-10-25 20:27:07,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:07,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:27:07,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968190485] [2020-10-25 20:27:07,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:07,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:07,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:07,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:07,445 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-25 20:27:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:08,526 INFO L93 Difference]: Finished difference Result 553 states and 967 transitions. [2020-10-25 20:27:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:08,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-10-25 20:27:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:08,543 INFO L225 Difference]: With dead ends: 553 [2020-10-25 20:27:08,544 INFO L226 Difference]: Without dead ends: 282 [2020-10-25 20:27:08,549 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 20:27:08,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-25 20:27:08,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-25 20:27:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-25 20:27:08,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2020-10-25 20:27:08,617 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 60 [2020-10-25 20:27:08,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:08,618 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2020-10-25 20:27:08,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:08,618 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2020-10-25 20:27:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-25 20:27:08,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:08,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:08,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:27:08,625 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:08,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:08,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1150916914, now seen corresponding path program 1 times [2020-10-25 20:27:08,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:08,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636021332] [2020-10-25 20:27:08,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-25 20:27:09,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636021332] [2020-10-25 20:27:09,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518341076] [2020-10-25 20:27:09,007 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 20:27:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:09,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:27:09,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:27:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-25 20:27:09,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:27:09,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 20:27:09,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974800584] [2020-10-25 20:27:09,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:09,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:09,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:09,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:27:09,246 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand 3 states. [2020-10-25 20:27:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:10,080 INFO L93 Difference]: Finished difference Result 562 states and 752 transitions. [2020-10-25 20:27:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:10,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-25 20:27:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:10,087 INFO L225 Difference]: With dead ends: 562 [2020-10-25 20:27:10,087 INFO L226 Difference]: Without dead ends: 560 [2020-10-25 20:27:10,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:27:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-25 20:27:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421. [2020-10-25 20:27:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-25 20:27:10,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 591 transitions. [2020-10-25 20:27:10,139 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 591 transitions. Word has length 126 [2020-10-25 20:27:10,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:10,142 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 591 transitions. [2020-10-25 20:27:10,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:10,142 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 591 transitions. [2020-10-25 20:27:10,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-25 20:27:10,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:10,155 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:10,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-25 20:27:10,356 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:10,358 INFO L82 PathProgramCache]: Analyzing trace with hash 119982509, now seen corresponding path program 1 times [2020-10-25 20:27:10,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:10,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505439710] [2020-10-25 20:27:10,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:10,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505439710] [2020-10-25 20:27:10,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:10,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:27:10,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124158203] [2020-10-25 20:27:10,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:10,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:10,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:10,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:10,532 INFO L87 Difference]: Start difference. First operand 421 states and 591 transitions. Second operand 3 states. [2020-10-25 20:27:11,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:11,373 INFO L93 Difference]: Finished difference Result 1118 states and 1553 transitions. [2020-10-25 20:27:11,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:11,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-25 20:27:11,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:11,380 INFO L225 Difference]: With dead ends: 1118 [2020-10-25 20:27:11,380 INFO L226 Difference]: Without dead ends: 699 [2020-10-25 20:27:11,383 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 20:27:11,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-25 20:27:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-25 20:27:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-25 20:27:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 904 transitions. [2020-10-25 20:27:11,424 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 904 transitions. Word has length 129 [2020-10-25 20:27:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:11,425 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 904 transitions. [2020-10-25 20:27:11,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 904 transitions. [2020-10-25 20:27:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-25 20:27:11,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:11,433 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:11,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:27:11,433 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:11,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:11,437 INFO L82 PathProgramCache]: Analyzing trace with hash 741392606, now seen corresponding path program 1 times [2020-10-25 20:27:11,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:11,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681249158] [2020-10-25 20:27:11,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:11,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681249158] [2020-10-25 20:27:11,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:11,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 20:27:11,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326441083] [2020-10-25 20:27:11,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 20:27:11,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:11,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 20:27:11,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:27:11,791 INFO L87 Difference]: Start difference. First operand 699 states and 904 transitions. Second operand 7 states. [2020-10-25 20:27:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:12,663 INFO L93 Difference]: Finished difference Result 1451 states and 1861 transitions. [2020-10-25 20:27:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 20:27:12,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-25 20:27:12,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:12,675 INFO L225 Difference]: With dead ends: 1451 [2020-10-25 20:27:12,675 INFO L226 Difference]: Without dead ends: 699 [2020-10-25 20:27:12,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:27:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-25 20:27:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-25 20:27:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-25 20:27:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 899 transitions. [2020-10-25 20:27:12,706 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 899 transitions. Word has length 135 [2020-10-25 20:27:12,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:12,708 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 899 transitions. [2020-10-25 20:27:12,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 20:27:12,709 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 899 transitions. [2020-10-25 20:27:12,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-25 20:27:12,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:12,714 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:12,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:27:12,715 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:12,717 INFO L82 PathProgramCache]: Analyzing trace with hash 3523452, now seen corresponding path program 1 times [2020-10-25 20:27:12,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:12,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623810652] [2020-10-25 20:27:12,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:12,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623810652] [2020-10-25 20:27:12,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:12,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:12,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030668109] [2020-10-25 20:27:12,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:12,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:12,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:12,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:12,934 INFO L87 Difference]: Start difference. First operand 699 states and 899 transitions. Second operand 3 states. [2020-10-25 20:27:13,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:13,642 INFO L93 Difference]: Finished difference Result 1674 states and 2173 transitions. [2020-10-25 20:27:13,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:13,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-10-25 20:27:13,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:13,648 INFO L225 Difference]: With dead ends: 1674 [2020-10-25 20:27:13,649 INFO L226 Difference]: Without dead ends: 977 [2020-10-25 20:27:13,651 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 20:27:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-25 20:27:13,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-10-25 20:27:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-25 20:27:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions. [2020-10-25 20:27:13,677 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 204 [2020-10-25 20:27:13,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:13,677 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions. [2020-10-25 20:27:13,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions. [2020-10-25 20:27:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-25 20:27:13,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:13,682 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:13,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 20:27:13,683 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:13,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:13,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1361305873, now seen corresponding path program 1 times [2020-10-25 20:27:13,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:13,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477967233] [2020-10-25 20:27:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-25 20:27:13,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477967233] [2020-10-25 20:27:13,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:13,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:27:13,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226631080] [2020-10-25 20:27:13,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:13,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:13,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:13,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:13,843 INFO L87 Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand 3 states. [2020-10-25 20:27:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:14,486 INFO L93 Difference]: Finished difference Result 2091 states and 2542 transitions. [2020-10-25 20:27:14,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:14,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-10-25 20:27:14,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:14,494 INFO L225 Difference]: With dead ends: 2091 [2020-10-25 20:27:14,495 INFO L226 Difference]: Without dead ends: 1116 [2020-10-25 20:27:14,497 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 20:27:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-25 20:27:14,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-10-25 20:27:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-25 20:27:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1341 transitions. [2020-10-25 20:27:14,528 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1341 transitions. Word has length 211 [2020-10-25 20:27:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:14,528 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1341 transitions. [2020-10-25 20:27:14,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:14,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1341 transitions. [2020-10-25 20:27:14,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-25 20:27:14,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:14,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:14,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:27:14,535 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:14,535 INFO L82 PathProgramCache]: Analyzing trace with hash 222774834, now seen corresponding path program 1 times [2020-10-25 20:27:14,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:14,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743631404] [2020-10-25 20:27:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:14,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743631404] [2020-10-25 20:27:14,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:14,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:14,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163348070] [2020-10-25 20:27:14,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:14,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:14,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:14,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:14,772 INFO L87 Difference]: Start difference. First operand 1116 states and 1341 transitions. Second operand 3 states. [2020-10-25 20:27:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:15,499 INFO L93 Difference]: Finished difference Result 2369 states and 2914 transitions. [2020-10-25 20:27:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:15,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-10-25 20:27:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:15,506 INFO L225 Difference]: With dead ends: 2369 [2020-10-25 20:27:15,507 INFO L226 Difference]: Without dead ends: 1394 [2020-10-25 20:27:15,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-25 20:27:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-25 20:27:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:27:15,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1456 transitions. [2020-10-25 20:27:15,547 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1456 transitions. Word has length 249 [2020-10-25 20:27:15,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:15,547 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1456 transitions. [2020-10-25 20:27:15,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:15,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1456 transitions. [2020-10-25 20:27:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-25 20:27:15,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:15,555 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:27:15,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:27:15,556 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:15,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:15,557 INFO L82 PathProgramCache]: Analyzing trace with hash -555604661, now seen corresponding path program 1 times [2020-10-25 20:27:15,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:15,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830898613] [2020-10-25 20:27:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-25 20:27:15,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830898613] [2020-10-25 20:27:15,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:15,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:15,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805550139] [2020-10-25 20:27:15,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:15,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:15,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:15,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:15,873 INFO L87 Difference]: Start difference. First operand 1255 states and 1456 transitions. Second operand 3 states. [2020-10-25 20:27:16,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:16,660 INFO L93 Difference]: Finished difference Result 1813 states and 2098 transitions. [2020-10-25 20:27:16,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:16,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-10-25 20:27:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:16,675 INFO L225 Difference]: With dead ends: 1813 [2020-10-25 20:27:16,676 INFO L226 Difference]: Without dead ends: 1811 [2020-10-25 20:27:16,678 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 20:27:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2020-10-25 20:27:16,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255. [2020-10-25 20:27:16,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:27:16,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1456 transitions. [2020-10-25 20:27:16,728 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1456 transitions. Word has length 303 [2020-10-25 20:27:16,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:16,729 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1456 transitions. [2020-10-25 20:27:16,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1456 transitions. [2020-10-25 20:27:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-25 20:27:16,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:16,744 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-25 20:27:16,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:27:16,744 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:16,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:16,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1863869209, now seen corresponding path program 1 times [2020-10-25 20:27:16,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:16,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227593221] [2020-10-25 20:27:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-25 20:27:17,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227593221] [2020-10-25 20:27:17,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:17,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:17,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887876406] [2020-10-25 20:27:17,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:17,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:17,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:17,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:17,116 INFO L87 Difference]: Start difference. First operand 1255 states and 1456 transitions. Second operand 3 states. [2020-10-25 20:27:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:17,843 INFO L93 Difference]: Finished difference Result 3203 states and 3730 transitions. [2020-10-25 20:27:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:17,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-10-25 20:27:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:17,856 INFO L225 Difference]: With dead ends: 3203 [2020-10-25 20:27:17,856 INFO L226 Difference]: Without dead ends: 2089 [2020-10-25 20:27:17,859 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 20:27:17,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-25 20:27:17,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1672. [2020-10-25 20:27:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-10-25 20:27:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1952 transitions. [2020-10-25 20:27:17,913 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1952 transitions. Word has length 338 [2020-10-25 20:27:17,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:17,914 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1952 transitions. [2020-10-25 20:27:17,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1952 transitions. [2020-10-25 20:27:17,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-25 20:27:17,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:17,925 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:17,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:27:17,926 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:17,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:17,927 INFO L82 PathProgramCache]: Analyzing trace with hash -676259110, now seen corresponding path program 1 times [2020-10-25 20:27:17,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:17,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921770675] [2020-10-25 20:27:17,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-25 20:27:18,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921770675] [2020-10-25 20:27:18,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:18,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:18,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350414606] [2020-10-25 20:27:18,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:18,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:18,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:18,202 INFO L87 Difference]: Start difference. First operand 1672 states and 1952 transitions. Second operand 3 states. [2020-10-25 20:27:18,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:18,887 INFO L93 Difference]: Finished difference Result 3898 states and 4557 transitions. [2020-10-25 20:27:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:18,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2020-10-25 20:27:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:18,900 INFO L225 Difference]: With dead ends: 3898 [2020-10-25 20:27:18,901 INFO L226 Difference]: Without dead ends: 2367 [2020-10-25 20:27:18,904 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 20:27:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2020-10-25 20:27:18,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2020-10-25 20:27:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2020-10-25 20:27:18,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2712 transitions. [2020-10-25 20:27:18,973 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2712 transitions. Word has length 355 [2020-10-25 20:27:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:18,974 INFO L481 AbstractCegarLoop]: Abstraction has 2367 states and 2712 transitions. [2020-10-25 20:27:18,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2712 transitions. [2020-10-25 20:27:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-25 20:27:18,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:18,985 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:18,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:27:18,985 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:18,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:18,986 INFO L82 PathProgramCache]: Analyzing trace with hash 264074683, now seen corresponding path program 1 times [2020-10-25 20:27:18,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:18,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542016024] [2020-10-25 20:27:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-25 20:27:19,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542016024] [2020-10-25 20:27:19,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:19,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:19,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712180782] [2020-10-25 20:27:19,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:19,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:19,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:19,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:19,242 INFO L87 Difference]: Start difference. First operand 2367 states and 2712 transitions. Second operand 3 states. [2020-10-25 20:27:19,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:19,956 INFO L93 Difference]: Finished difference Result 5149 states and 6003 transitions. [2020-10-25 20:27:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:19,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-10-25 20:27:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:19,971 INFO L225 Difference]: With dead ends: 5149 [2020-10-25 20:27:19,972 INFO L226 Difference]: Without dead ends: 2923 [2020-10-25 20:27:19,976 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 20:27:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2020-10-25 20:27:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2645. [2020-10-25 20:27:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-25 20:27:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3015 transitions. [2020-10-25 20:27:20,052 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3015 transitions. Word has length 359 [2020-10-25 20:27:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:20,053 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 3015 transitions. [2020-10-25 20:27:20,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3015 transitions. [2020-10-25 20:27:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-25 20:27:20,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:20,065 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:20,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:27:20,065 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:20,066 INFO L82 PathProgramCache]: Analyzing trace with hash -582253188, now seen corresponding path program 1 times [2020-10-25 20:27:20,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:20,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483870418] [2020-10-25 20:27:20,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-25 20:27:20,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483870418] [2020-10-25 20:27:20,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:20,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:20,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273383109] [2020-10-25 20:27:20,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:20,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:20,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:20,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:20,363 INFO L87 Difference]: Start difference. First operand 2645 states and 3015 transitions. Second operand 3 states. [2020-10-25 20:27:21,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:21,119 INFO L93 Difference]: Finished difference Result 3620 states and 4141 transitions. [2020-10-25 20:27:21,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:21,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 368 [2020-10-25 20:27:21,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:21,136 INFO L225 Difference]: With dead ends: 3620 [2020-10-25 20:27:21,137 INFO L226 Difference]: Without dead ends: 3618 [2020-10-25 20:27:21,139 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 20:27:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2020-10-25 20:27:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 2506. [2020-10-25 20:27:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2506 states. [2020-10-25 20:27:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 2865 transitions. [2020-10-25 20:27:21,209 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 2865 transitions. Word has length 368 [2020-10-25 20:27:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:21,210 INFO L481 AbstractCegarLoop]: Abstraction has 2506 states and 2865 transitions. [2020-10-25 20:27:21,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 2865 transitions. [2020-10-25 20:27:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-10-25 20:27:21,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:21,222 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:21,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 20:27:21,222 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:21,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1903663936, now seen corresponding path program 1 times [2020-10-25 20:27:21,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:21,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52063124] [2020-10-25 20:27:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-25 20:27:21,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52063124] [2020-10-25 20:27:21,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:21,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:21,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064982874] [2020-10-25 20:27:21,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:21,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:21,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:21,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:21,507 INFO L87 Difference]: Start difference. First operand 2506 states and 2865 transitions. Second operand 3 states. [2020-10-25 20:27:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:22,201 INFO L93 Difference]: Finished difference Result 4869 states and 5584 transitions. [2020-10-25 20:27:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:22,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2020-10-25 20:27:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:22,204 INFO L225 Difference]: With dead ends: 4869 [2020-10-25 20:27:22,204 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:27:22,210 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 20:27:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:27:22,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:27:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:27:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:27:22,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 373 [2020-10-25 20:27:22,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:22,212 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:27:22,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:27:22,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:27:22,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 20:27:22,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:27:22,547 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-10-25 20:27:22,716 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-10-25 20:27:22,721 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-25 20:27:22,721 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-25 20:27:22,721 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-25 20:27:22,721 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-25 20:27:22,722 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:27:22,723 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:27:22,724 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:27:22,724 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-25 20:27:22,724 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-25 20:27:22,724 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-25 20:27:22,729 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,729 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,729 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,729 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,730 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,730 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-25 20:27:22,730 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-25 20:27:22,730 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-25 20:27:22,730 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-25 20:27:22,730 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-25 20:27:22,731 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-25 20:27:22,732 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-25 20:27:22,732 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-25 20:27:22,732 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,732 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,732 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,732 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:27:22,733 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:27:22,736 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a10~0 2)) (.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (<= 0 ~a1~0) .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 (= ~a10~0 4)) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 (= ~a10~0 0) .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-10-25 20:27:22,736 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-25 20:27:22,736 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,737 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,738 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-25 20:27:22,738 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-25 20:27:22,738 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-25 20:27:22,738 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:27:22,738 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:27:22,738 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:27:22,739 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:27:22,739 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:27:22,739 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-25 20:27:22,739 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-25 20:27:22,739 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-25 20:27:22,739 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-25 20:27:22,739 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-25 20:27:22,740 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-25 20:27:22,740 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,740 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,740 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,740 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,740 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,741 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:27:22,741 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:27:22,741 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:27:22,741 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:27:22,742 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:27:22,742 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-25 20:27:22,742 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-25 20:27:22,742 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-25 20:27:22,743 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:27:22,743 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-25 20:27:22,743 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,743 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,743 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,743 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,744 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,744 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-25 20:27:22,744 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-25 20:27:22,744 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-25 20:27:22,744 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-25 20:27:22,744 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:27:22,745 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:27:22,745 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:27:22,745 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:27:22,745 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:27:22,745 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-25 20:27:22,745 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-25 20:27:22,746 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-25 20:27:22,746 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse1 (= ~a10~0 2)) (.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (<= 0 ~a1~0) .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 (= ~a10~0 4)) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 (= ~a10~0 0) .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-10-25 20:27:22,746 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-25 20:27:22,746 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,746 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,746 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,748 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,748 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:27:22,748 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,749 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,749 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-25 20:27:22,749 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-25 20:27:22,750 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-25 20:27:22,750 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:27:22,750 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:27:22,750 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:27:22,750 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:27:22,751 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:27:22,751 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:27:22,751 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,752 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,753 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,753 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,753 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,753 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-25 20:27:22,753 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-25 20:27:22,753 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-25 20:27:22,754 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:27:22,754 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:27:22,754 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:27:22,754 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-25 20:27:22,755 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,756 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,756 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-25 20:27:22,757 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:27:22,758 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-25 20:27:22,759 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-25 20:27:22,760 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,760 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,760 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,760 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,760 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,760 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:22,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:27:22 BoogieIcfgContainer [2020-10-25 20:27:22,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:27:22,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:27:22,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:27:22,808 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:27:22,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:27:06" (3/4) ... [2020-10-25 20:27:22,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:27:22,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:27:22,858 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:27:22,859 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:27:22,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:27:23,084 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:27:23,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:27:23,087 INFO L168 Benchmark]: Toolchain (without parser) took 18970.41 ms. Allocated memory was 41.9 MB in the beginning and 371.2 MB in the end (delta: 329.3 MB). Free memory was 18.3 MB in the beginning and 226.2 MB in the end (delta: -207.9 MB). Peak memory consumption was 123.2 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,087 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory was 27.4 MB in the beginning and 27.4 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:27:23,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 947.38 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 28.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.60 ms. Allocated memory is still 50.3 MB. Free memory was 28.4 MB in the beginning and 20.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,089 INFO L168 Benchmark]: Boogie Preprocessor took 118.89 ms. Allocated memory is still 50.3 MB. Free memory was 20.5 MB in the beginning and 26.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,089 INFO L168 Benchmark]: RCFGBuilder took 1629.87 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 26.6 MB in the beginning and 27.1 MB in the end (delta: -497.3 kB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,090 INFO L168 Benchmark]: TraceAbstraction took 15870.67 ms. Allocated memory was 79.7 MB in the beginning and 371.2 MB in the end (delta: 291.5 MB). Free memory was 53.3 MB in the beginning and 241.9 MB in the end (delta: -188.6 MB). Peak memory consumption was 101.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,090 INFO L168 Benchmark]: Witness Printer took 279.70 ms. Allocated memory is still 371.2 MB. Free memory was 241.9 MB in the beginning and 226.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:23,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory was 27.4 MB in the beginning and 27.4 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 947.38 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 28.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.60 ms. Allocated memory is still 50.3 MB. Free memory was 28.4 MB in the beginning and 20.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.89 ms. Allocated memory is still 50.3 MB. Free memory was 20.5 MB in the beginning and 26.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1629.87 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 26.6 MB in the beginning and 27.1 MB in the end (delta: -497.3 kB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15870.67 ms. Allocated memory was 79.7 MB in the beginning and 371.2 MB in the end (delta: 291.5 MB). Free memory was 53.3 MB in the beginning and 241.9 MB in the end (delta: -188.6 MB). Peak memory consumption was 101.4 MB. Max. memory is 16.1 GB. * Witness Printer took 279.70 ms. Allocated memory is still 371.2 MB. Free memory was 241.9 MB in the beginning and 226.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((14 == a4 && 0 <= a1) && a10 == 2) && a12 == 0) && a19 <= 9) || (((14 == a4 && a12 == 0) && a19 <= 9) && a10 == 4)) || ((((8 <= a19 && 14 == a4) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((14 == a4 && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((((14 == a4 && 0 <= a1) && a10 == 2) && a12 == 0) && a19 <= 9) || (((14 == a4 && a12 == 0) && a19 <= 9) && a10 == 4)) || ((((8 <= a19 && 14 == a4) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((14 == a4 && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.2s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1495 SDtfs, 1228 SDslu, 67 SDs, 0 SdLazy, 5090 SolverSat, 730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 2641 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 159 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2314 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 482 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 3336 NumberOfCodeBlocks, 3336 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3322 ConstructedInterpolants, 0 QuantifiedInterpolants, 1712010 SizeOfPredicates, 1 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 3132/3157 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...