./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer --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 cf93ae511ae85a8156c5f973f24b1bb68928087b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:23:05,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:23:05,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:23:05,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:23:05,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:23:05,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:23:05,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:23:05,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:23:05,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:23:05,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:23:05,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:23:05,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:23:05,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:23:05,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:23:05,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:23:05,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:23:05,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:23:05,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:23:05,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:23:05,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:23:05,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:23:05,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:23:05,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:23:05,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:23:05,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:23:05,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:23:05,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:23:05,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:23:05,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:23:05,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:23:05,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:23:05,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:23:05,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:23:05,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:23:05,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:23:05,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:23:05,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:23:05,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:23:05,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:23:05,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:23:05,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:23:05,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:23:05,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:23:05,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:23:05,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:23:05,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:23:05,583 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:23:05,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:23:05,584 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:23:05,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:23:05,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:23:05,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:23:05,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:23:05,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:23:05,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:23:05,587 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:23:05,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:23:05,588 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:23:05,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:23:05,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:23:05,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:23:05,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:23:05,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:23:05,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:23:05,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:23:05,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:23:05,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:23:05,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:23:05,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:23:05,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:23:05,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:23:05,593 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:/tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf93ae511ae85a8156c5f973f24b1bb68928087b [2020-11-29 19:23:05,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:23:06,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:23:06,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:23:06,048 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:23:06,049 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:23:06,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label50.c [2020-11-29 19:23:06,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/data/f2a8abe86/794913b9f9c74dfda96575cccd9891a3/FLAGea66b34db [2020-11-29 19:23:06,825 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:23:06,826 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/sv-benchmarks/c/eca-rers2012/Problem11_label50.c [2020-11-29 19:23:06,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/data/f2a8abe86/794913b9f9c74dfda96575cccd9891a3/FLAGea66b34db [2020-11-29 19:23:07,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/data/f2a8abe86/794913b9f9c74dfda96575cccd9891a3 [2020-11-29 19:23:07,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:23:07,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:23:07,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:23:07,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:23:07,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:23:07,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:23:07" (1/1) ... [2020-11-29 19:23:07,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13719081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:07, skipping insertion in model container [2020-11-29 19:23:07,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:23:07" (1/1) ... [2020-11-29 19:23:07,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:23:07,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:23:07,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:23:07,894 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:23:08,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:23:08,144 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:23:08,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08 WrapperNode [2020-11-29 19:23:08,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:23:08,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:23:08,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:23:08,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:23:08,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:23:08,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:23:08,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:23:08,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:23:08,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... [2020-11-29 19:23:08,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:23:08,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:23:08,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:23:08,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:23:08,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/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 [2020-11-29 19:23:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:23:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:23:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:23:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:23:11,447 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:23:11,447 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 19:23:11,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:11 BoogieIcfgContainer [2020-11-29 19:23:11,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:23:11,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:23:11,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:23:11,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:23:11,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:23:07" (1/3) ... [2020-11-29 19:23:11,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0ed66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:23:11, skipping insertion in model container [2020-11-29 19:23:11,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:08" (2/3) ... [2020-11-29 19:23:11,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0ed66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:23:11, skipping insertion in model container [2020-11-29 19:23:11,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:11" (3/3) ... [2020-11-29 19:23:11,459 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label50.c [2020-11-29 19:23:11,473 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:23:11,478 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:23:11,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:23:11,525 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:23:11,525 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:23:11,525 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:23:11,525 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:23:11,526 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:23:11,526 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:23:11,526 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:23:11,526 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:23:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 19:23:11,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-29 19:23:11,560 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:11,561 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] [2020-11-29 19:23:11,561 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:11,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:11,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1318097310, now seen corresponding path program 1 times [2020-11-29 19:23:11,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:11,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616188486] [2020-11-29 19:23:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:11,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616188486] [2020-11-29 19:23:11,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:11,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:23:11,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846152829] [2020-11-29 19:23:11,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:11,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:11,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:11,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:11,922 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 19:23:13,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:13,953 INFO L93 Difference]: Finished difference Result 777 states and 1364 transitions. [2020-11-29 19:23:13,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:13,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-11-29 19:23:13,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:13,980 INFO L225 Difference]: With dead ends: 777 [2020-11-29 19:23:13,983 INFO L226 Difference]: Without dead ends: 413 [2020-11-29 19:23:13,995 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 [2020-11-29 19:23:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-29 19:23:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2020-11-29 19:23:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-11-29 19:23:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2020-11-29 19:23:14,104 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 36 [2020-11-29 19:23:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:14,104 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2020-11-29 19:23:14,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2020-11-29 19:23:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-29 19:23:14,114 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:14,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:14,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:23:14,115 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:14,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1965649882, now seen corresponding path program 1 times [2020-11-29 19:23:14,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:14,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431234732] [2020-11-29 19:23:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:14,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431234732] [2020-11-29 19:23:14,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:14,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:23:14,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600498241] [2020-11-29 19:23:14,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:14,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:14,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:14,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:14,411 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand 3 states. [2020-11-29 19:23:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:15,838 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2020-11-29 19:23:15,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:15,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-29 19:23:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:15,853 INFO L225 Difference]: With dead ends: 1209 [2020-11-29 19:23:15,857 INFO L226 Difference]: Without dead ends: 800 [2020-11-29 19:23:15,862 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 [2020-11-29 19:23:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-29 19:23:15,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2020-11-29 19:23:15,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-11-29 19:23:15,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2020-11-29 19:23:15,935 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 104 [2020-11-29 19:23:15,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:15,935 INFO L481 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2020-11-29 19:23:15,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2020-11-29 19:23:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 19:23:15,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:15,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:15,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:23:15,956 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:15,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:15,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1243453346, now seen corresponding path program 1 times [2020-11-29 19:23:15,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:15,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053089946] [2020-11-29 19:23:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:16,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053089946] [2020-11-29 19:23:16,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:16,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:23:16,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219805557] [2020-11-29 19:23:16,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:16,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:16,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:16,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:16,197 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand 3 states. [2020-11-29 19:23:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:17,438 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2020-11-29 19:23:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:17,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 19:23:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:17,447 INFO L225 Difference]: With dead ends: 1941 [2020-11-29 19:23:17,447 INFO L226 Difference]: Without dead ends: 1156 [2020-11-29 19:23:17,451 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 [2020-11-29 19:23:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-11-29 19:23:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2020-11-29 19:23:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2020-11-29 19:23:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2020-11-29 19:23:17,488 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 105 [2020-11-29 19:23:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:17,489 INFO L481 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2020-11-29 19:23:17,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2020-11-29 19:23:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-29 19:23:17,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:17,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:17,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:23:17,492 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:17,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1834745314, now seen corresponding path program 1 times [2020-11-29 19:23:17,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:17,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961974575] [2020-11-29 19:23:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:17,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961974575] [2020-11-29 19:23:17,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:17,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:17,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113333999] [2020-11-29 19:23:17,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:17,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:17,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:17,755 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand 3 states. [2020-11-29 19:23:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:19,145 INFO L93 Difference]: Finished difference Result 2877 states and 3707 transitions. [2020-11-29 19:23:19,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:19,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-29 19:23:19,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:19,161 INFO L225 Difference]: With dead ends: 2877 [2020-11-29 19:23:19,162 INFO L226 Difference]: Without dead ends: 1723 [2020-11-29 19:23:19,165 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 [2020-11-29 19:23:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2020-11-29 19:23:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1529. [2020-11-29 19:23:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2020-11-29 19:23:19,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1927 transitions. [2020-11-29 19:23:19,210 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1927 transitions. Word has length 148 [2020-11-29 19:23:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:19,212 INFO L481 AbstractCegarLoop]: Abstraction has 1529 states and 1927 transitions. [2020-11-29 19:23:19,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1927 transitions. [2020-11-29 19:23:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-11-29 19:23:19,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:19,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:19,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:23:19,216 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:19,218 INFO L82 PathProgramCache]: Analyzing trace with hash -937424869, now seen corresponding path program 1 times [2020-11-29 19:23:19,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:19,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511013529] [2020-11-29 19:23:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:19,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511013529] [2020-11-29 19:23:19,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:19,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:19,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189249453] [2020-11-29 19:23:19,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:19,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:19,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:19,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:19,463 INFO L87 Difference]: Start difference. First operand 1529 states and 1927 transitions. Second operand 3 states. [2020-11-29 19:23:20,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:20,913 INFO L93 Difference]: Finished difference Result 3617 states and 4543 transitions. [2020-11-29 19:23:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:20,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-11-29 19:23:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:20,928 INFO L225 Difference]: With dead ends: 3617 [2020-11-29 19:23:20,928 INFO L226 Difference]: Without dead ends: 1906 [2020-11-29 19:23:20,931 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 [2020-11-29 19:23:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2020-11-29 19:23:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1897. [2020-11-29 19:23:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-11-29 19:23:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2363 transitions. [2020-11-29 19:23:20,986 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2363 transitions. Word has length 179 [2020-11-29 19:23:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:20,988 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2363 transitions. [2020-11-29 19:23:20,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2363 transitions. [2020-11-29 19:23:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-11-29 19:23:20,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:20,994 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:20,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:23:20,994 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1168587143, now seen corresponding path program 1 times [2020-11-29 19:23:20,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:20,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161820246] [2020-11-29 19:23:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-11-29 19:23:21,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161820246] [2020-11-29 19:23:21,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:21,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:23:21,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874773066] [2020-11-29 19:23:21,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:21,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:21,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:21,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:21,318 INFO L87 Difference]: Start difference. First operand 1897 states and 2363 transitions. Second operand 3 states. [2020-11-29 19:23:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:22,659 INFO L93 Difference]: Finished difference Result 4904 states and 6161 transitions. [2020-11-29 19:23:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:22,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-11-29 19:23:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:22,678 INFO L225 Difference]: With dead ends: 4904 [2020-11-29 19:23:22,678 INFO L226 Difference]: Without dead ends: 3009 [2020-11-29 19:23:22,681 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 [2020-11-29 19:23:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2020-11-29 19:23:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 3008. [2020-11-29 19:23:22,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3008 states. [2020-11-29 19:23:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 3620 transitions. [2020-11-29 19:23:22,754 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 3620 transitions. Word has length 217 [2020-11-29 19:23:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:22,755 INFO L481 AbstractCegarLoop]: Abstraction has 3008 states and 3620 transitions. [2020-11-29 19:23:22,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 3620 transitions. [2020-11-29 19:23:22,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-29 19:23:22,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:22,760 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:22,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:23:22,760 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:22,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1203671281, now seen corresponding path program 1 times [2020-11-29 19:23:22,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:22,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043691344] [2020-11-29 19:23:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 19:23:22,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043691344] [2020-11-29 19:23:22,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:22,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:22,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625036631] [2020-11-29 19:23:22,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:22,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:22,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:22,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:22,981 INFO L87 Difference]: Start difference. First operand 3008 states and 3620 transitions. Second operand 3 states. [2020-11-29 19:23:24,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:24,355 INFO L93 Difference]: Finished difference Result 6759 states and 8218 transitions. [2020-11-29 19:23:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:24,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-29 19:23:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:24,383 INFO L225 Difference]: With dead ends: 6759 [2020-11-29 19:23:24,383 INFO L226 Difference]: Without dead ends: 3753 [2020-11-29 19:23:24,388 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 [2020-11-29 19:23:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2020-11-29 19:23:24,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3560. [2020-11-29 19:23:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2020-11-29 19:23:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4267 transitions. [2020-11-29 19:23:24,525 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4267 transitions. Word has length 218 [2020-11-29 19:23:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:24,525 INFO L481 AbstractCegarLoop]: Abstraction has 3560 states and 4267 transitions. [2020-11-29 19:23:24,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4267 transitions. [2020-11-29 19:23:24,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-11-29 19:23:24,532 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:24,532 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, 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, 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] [2020-11-29 19:23:24,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:23:24,532 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:24,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:24,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1690315137, now seen corresponding path program 1 times [2020-11-29 19:23:24,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:24,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706561527] [2020-11-29 19:23:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:24,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706561527] [2020-11-29 19:23:24,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:24,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:23:24,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119086451] [2020-11-29 19:23:24,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:24,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:24,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:24,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:24,852 INFO L87 Difference]: Start difference. First operand 3560 states and 4267 transitions. Second operand 4 states. [2020-11-29 19:23:27,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:27,220 INFO L93 Difference]: Finished difference Result 11016 states and 13448 transitions. [2020-11-29 19:23:27,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:27,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-11-29 19:23:27,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:27,262 INFO L225 Difference]: With dead ends: 11016 [2020-11-29 19:23:27,262 INFO L226 Difference]: Without dead ends: 7458 [2020-11-29 19:23:27,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7458 states. [2020-11-29 19:23:27,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7458 to 6158. [2020-11-29 19:23:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6158 states. [2020-11-29 19:23:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6158 states to 6158 states and 7351 transitions. [2020-11-29 19:23:27,457 INFO L78 Accepts]: Start accepts. Automaton has 6158 states and 7351 transitions. Word has length 238 [2020-11-29 19:23:27,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:27,458 INFO L481 AbstractCegarLoop]: Abstraction has 6158 states and 7351 transitions. [2020-11-29 19:23:27,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:27,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6158 states and 7351 transitions. [2020-11-29 19:23:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-29 19:23:27,464 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:27,465 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, 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, 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] [2020-11-29 19:23:27,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:23:27,465 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:27,466 INFO L82 PathProgramCache]: Analyzing trace with hash 330772358, now seen corresponding path program 1 times [2020-11-29 19:23:27,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:27,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325260767] [2020-11-29 19:23:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:27,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325260767] [2020-11-29 19:23:27,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:27,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:23:27,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559959933] [2020-11-29 19:23:27,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:27,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:27,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:27,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:27,735 INFO L87 Difference]: Start difference. First operand 6158 states and 7351 transitions. Second operand 4 states. [2020-11-29 19:23:30,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:30,261 INFO L93 Difference]: Finished difference Result 15827 states and 19193 transitions. [2020-11-29 19:23:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:30,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2020-11-29 19:23:30,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:30,342 INFO L225 Difference]: With dead ends: 15827 [2020-11-29 19:23:30,342 INFO L226 Difference]: Without dead ends: 9671 [2020-11-29 19:23:30,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9671 states. [2020-11-29 19:23:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9671 to 9291. [2020-11-29 19:23:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-11-29 19:23:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 11143 transitions. [2020-11-29 19:23:30,670 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 11143 transitions. Word has length 248 [2020-11-29 19:23:30,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:30,671 INFO L481 AbstractCegarLoop]: Abstraction has 9291 states and 11143 transitions. [2020-11-29 19:23:30,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:30,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 11143 transitions. [2020-11-29 19:23:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-29 19:23:30,680 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:30,681 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:30,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 19:23:30,681 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:30,682 INFO L82 PathProgramCache]: Analyzing trace with hash -468394689, now seen corresponding path program 1 times [2020-11-29 19:23:30,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:30,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558917741] [2020-11-29 19:23:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:30,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558917741] [2020-11-29 19:23:30,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:30,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:30,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077993741] [2020-11-29 19:23:30,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:30,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:30,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:30,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:30,916 INFO L87 Difference]: Start difference. First operand 9291 states and 11143 transitions. Second operand 3 states. [2020-11-29 19:23:32,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:32,488 INFO L93 Difference]: Finished difference Result 22856 states and 27561 transitions. [2020-11-29 19:23:32,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:32,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-11-29 19:23:32,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:32,518 INFO L225 Difference]: With dead ends: 22856 [2020-11-29 19:23:32,518 INFO L226 Difference]: Without dead ends: 13567 [2020-11-29 19:23:32,531 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 [2020-11-29 19:23:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2020-11-29 19:23:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 13563. [2020-11-29 19:23:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13563 states. [2020-11-29 19:23:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 16104 transitions. [2020-11-29 19:23:32,777 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 16104 transitions. Word has length 248 [2020-11-29 19:23:32,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:32,777 INFO L481 AbstractCegarLoop]: Abstraction has 13563 states and 16104 transitions. [2020-11-29 19:23:32,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:32,778 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 16104 transitions. [2020-11-29 19:23:32,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-11-29 19:23:32,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:32,785 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:32,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 19:23:32,786 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:32,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1392587706, now seen corresponding path program 1 times [2020-11-29 19:23:32,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:32,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109434131] [2020-11-29 19:23:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-11-29 19:23:33,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109434131] [2020-11-29 19:23:33,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:33,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:33,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864268735] [2020-11-29 19:23:33,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:33,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:33,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:33,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:33,123 INFO L87 Difference]: Start difference. First operand 13563 states and 16104 transitions. Second operand 3 states. [2020-11-29 19:23:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:34,648 INFO L93 Difference]: Finished difference Result 32459 states and 38720 transitions. [2020-11-29 19:23:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:34,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-11-29 19:23:34,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:34,686 INFO L225 Difference]: With dead ends: 32459 [2020-11-29 19:23:34,686 INFO L226 Difference]: Without dead ends: 18714 [2020-11-29 19:23:34,705 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 [2020-11-29 19:23:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18714 states. [2020-11-29 19:23:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18714 to 17790. [2020-11-29 19:23:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17790 states. [2020-11-29 19:23:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17790 states to 17790 states and 20771 transitions. [2020-11-29 19:23:35,107 INFO L78 Accepts]: Start accepts. Automaton has 17790 states and 20771 transitions. Word has length 250 [2020-11-29 19:23:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:35,108 INFO L481 AbstractCegarLoop]: Abstraction has 17790 states and 20771 transitions. [2020-11-29 19:23:35,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 17790 states and 20771 transitions. [2020-11-29 19:23:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-11-29 19:23:35,116 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:35,117 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, 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, 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] [2020-11-29 19:23:35,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 19:23:35,117 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:35,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1673481877, now seen corresponding path program 1 times [2020-11-29 19:23:35,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:35,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384147510] [2020-11-29 19:23:35,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 19:23:35,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384147510] [2020-11-29 19:23:35,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:35,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:35,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347858414] [2020-11-29 19:23:35,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:35,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:35,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:35,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:35,308 INFO L87 Difference]: Start difference. First operand 17790 states and 20771 transitions. Second operand 3 states. [2020-11-29 19:23:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:37,009 INFO L93 Difference]: Finished difference Result 35588 states and 41560 transitions. [2020-11-29 19:23:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:37,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-11-29 19:23:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:37,051 INFO L225 Difference]: With dead ends: 35588 [2020-11-29 19:23:37,051 INFO L226 Difference]: Without dead ends: 17800 [2020-11-29 19:23:37,075 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 [2020-11-29 19:23:37,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17800 states. [2020-11-29 19:23:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17800 to 17789. [2020-11-29 19:23:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17789 states. [2020-11-29 19:23:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 20270 transitions. [2020-11-29 19:23:37,386 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 20270 transitions. Word has length 255 [2020-11-29 19:23:37,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:37,387 INFO L481 AbstractCegarLoop]: Abstraction has 17789 states and 20270 transitions. [2020-11-29 19:23:37,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 20270 transitions. [2020-11-29 19:23:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-11-29 19:23:37,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:37,397 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:37,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 19:23:37,397 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,398 INFO L82 PathProgramCache]: Analyzing trace with hash 2054210108, now seen corresponding path program 1 times [2020-11-29 19:23:37,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039473663] [2020-11-29 19:23:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:37,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039473663] [2020-11-29 19:23:37,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:37,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:37,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725851490] [2020-11-29 19:23:37,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:37,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:37,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:37,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:37,787 INFO L87 Difference]: Start difference. First operand 17789 states and 20270 transitions. Second operand 4 states. [2020-11-29 19:23:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:40,100 INFO L93 Difference]: Finished difference Result 32961 states and 37608 transitions. [2020-11-29 19:23:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:40,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-11-29 19:23:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:40,132 INFO L225 Difference]: With dead ends: 32961 [2020-11-29 19:23:40,132 INFO L226 Difference]: Without dead ends: 14806 [2020-11-29 19:23:40,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2020-11-29 19:23:40,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 11297. [2020-11-29 19:23:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11297 states. [2020-11-29 19:23:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11297 states to 11297 states and 12559 transitions. [2020-11-29 19:23:40,322 INFO L78 Accepts]: Start accepts. Automaton has 11297 states and 12559 transitions. Word has length 269 [2020-11-29 19:23:40,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:40,323 INFO L481 AbstractCegarLoop]: Abstraction has 11297 states and 12559 transitions. [2020-11-29 19:23:40,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:40,324 INFO L276 IsEmpty]: Start isEmpty. Operand 11297 states and 12559 transitions. [2020-11-29 19:23:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-11-29 19:23:40,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:40,333 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:40,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 19:23:40,334 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:40,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1970203897, now seen corresponding path program 1 times [2020-11-29 19:23:40,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:40,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163510537] [2020-11-29 19:23:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-11-29 19:23:40,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163510537] [2020-11-29 19:23:40,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:40,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:40,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518322757] [2020-11-29 19:23:40,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:40,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:40,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:40,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:40,580 INFO L87 Difference]: Start difference. First operand 11297 states and 12559 transitions. Second operand 3 states. [2020-11-29 19:23:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:41,643 INFO L93 Difference]: Finished difference Result 23880 states and 26555 transitions. [2020-11-29 19:23:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:41,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-11-29 19:23:41,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:41,668 INFO L225 Difference]: With dead ends: 23880 [2020-11-29 19:23:41,668 INFO L226 Difference]: Without dead ends: 12585 [2020-11-29 19:23:41,675 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 [2020-11-29 19:23:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12585 states. [2020-11-29 19:23:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12585 to 12033. [2020-11-29 19:23:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12033 states. [2020-11-29 19:23:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12033 states to 12033 states and 13331 transitions. [2020-11-29 19:23:41,837 INFO L78 Accepts]: Start accepts. Automaton has 12033 states and 13331 transitions. Word has length 303 [2020-11-29 19:23:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:41,838 INFO L481 AbstractCegarLoop]: Abstraction has 12033 states and 13331 transitions. [2020-11-29 19:23:41,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 12033 states and 13331 transitions. [2020-11-29 19:23:41,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-11-29 19:23:41,849 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:41,849 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:41,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 19:23:41,849 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:41,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:41,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1016467803, now seen corresponding path program 1 times [2020-11-29 19:23:41,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:41,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168849646] [2020-11-29 19:23:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-29 19:23:42,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168849646] [2020-11-29 19:23:42,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:42,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:23:42,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661816446] [2020-11-29 19:23:42,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:42,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:42,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:42,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:42,114 INFO L87 Difference]: Start difference. First operand 12033 states and 13331 transitions. Second operand 4 states. [2020-11-29 19:23:44,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:44,475 INFO L93 Difference]: Finished difference Result 31267 states and 34620 transitions. [2020-11-29 19:23:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:44,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 323 [2020-11-29 19:23:44,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:44,508 INFO L225 Difference]: With dead ends: 31267 [2020-11-29 19:23:44,508 INFO L226 Difference]: Without dead ends: 19052 [2020-11-29 19:23:44,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19052 states. [2020-11-29 19:23:44,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19052 to 17200. [2020-11-29 19:23:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17200 states. [2020-11-29 19:23:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17200 states to 17200 states and 18973 transitions. [2020-11-29 19:23:44,796 INFO L78 Accepts]: Start accepts. Automaton has 17200 states and 18973 transitions. Word has length 323 [2020-11-29 19:23:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:44,797 INFO L481 AbstractCegarLoop]: Abstraction has 17200 states and 18973 transitions. [2020-11-29 19:23:44,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 17200 states and 18973 transitions. [2020-11-29 19:23:44,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-11-29 19:23:44,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:44,810 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:44,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 19:23:44,812 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:44,812 INFO L82 PathProgramCache]: Analyzing trace with hash 676680204, now seen corresponding path program 1 times [2020-11-29 19:23:44,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:44,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987970825] [2020-11-29 19:23:44,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-11-29 19:23:45,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987970825] [2020-11-29 19:23:45,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:45,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:45,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668936033] [2020-11-29 19:23:45,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:45,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:45,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:45,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:45,043 INFO L87 Difference]: Start difference. First operand 17200 states and 18973 transitions. Second operand 3 states. [2020-11-29 19:23:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:46,464 INFO L93 Difference]: Finished difference Result 36239 states and 39972 transitions. [2020-11-29 19:23:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:46,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2020-11-29 19:23:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:46,491 INFO L225 Difference]: With dead ends: 36239 [2020-11-29 19:23:46,492 INFO L226 Difference]: Without dead ends: 19041 [2020-11-29 19:23:46,503 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 [2020-11-29 19:23:46,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19041 states. [2020-11-29 19:23:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19041 to 15336. [2020-11-29 19:23:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15336 states. [2020-11-29 19:23:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15336 states to 15336 states and 16913 transitions. [2020-11-29 19:23:46,736 INFO L78 Accepts]: Start accepts. Automaton has 15336 states and 16913 transitions. Word has length 330 [2020-11-29 19:23:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:46,736 INFO L481 AbstractCegarLoop]: Abstraction has 15336 states and 16913 transitions. [2020-11-29 19:23:46,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand 15336 states and 16913 transitions. [2020-11-29 19:23:46,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-11-29 19:23:46,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:46,747 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:46,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 19:23:46,748 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:46,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:46,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1753123512, now seen corresponding path program 1 times [2020-11-29 19:23:46,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:46,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505759356] [2020-11-29 19:23:46,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-11-29 19:23:46,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505759356] [2020-11-29 19:23:46,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:46,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:46,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445343222] [2020-11-29 19:23:46,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:46,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:46,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:46,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:46,983 INFO L87 Difference]: Start difference. First operand 15336 states and 16913 transitions. Second operand 3 states. [2020-11-29 19:23:48,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:48,111 INFO L93 Difference]: Finished difference Result 33429 states and 36849 transitions. [2020-11-29 19:23:48,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:48,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2020-11-29 19:23:48,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:48,136 INFO L225 Difference]: With dead ends: 33429 [2020-11-29 19:23:48,136 INFO L226 Difference]: Without dead ends: 18095 [2020-11-29 19:23:48,146 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 [2020-11-29 19:23:48,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18095 states. [2020-11-29 19:23:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18095 to 11650. [2020-11-29 19:23:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11650 states. [2020-11-29 19:23:48,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11650 states to 11650 states and 12888 transitions. [2020-11-29 19:23:48,364 INFO L78 Accepts]: Start accepts. Automaton has 11650 states and 12888 transitions. Word has length 332 [2020-11-29 19:23:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:48,364 INFO L481 AbstractCegarLoop]: Abstraction has 11650 states and 12888 transitions. [2020-11-29 19:23:48,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:23:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 11650 states and 12888 transitions. [2020-11-29 19:23:48,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-11-29 19:23:48,383 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:48,384 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, 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, 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, 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] [2020-11-29 19:23:48,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 19:23:48,384 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:48,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:48,385 INFO L82 PathProgramCache]: Analyzing trace with hash 300821086, now seen corresponding path program 1 times [2020-11-29 19:23:48,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:48,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264169477] [2020-11-29 19:23:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-11-29 19:23:48,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264169477] [2020-11-29 19:23:48,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:48,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:48,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514424460] [2020-11-29 19:23:48,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:48,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:48,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:48,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:48,919 INFO L87 Difference]: Start difference. First operand 11650 states and 12888 transitions. Second operand 4 states. [2020-11-29 19:23:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:50,324 INFO L93 Difference]: Finished difference Result 24403 states and 26921 transitions. [2020-11-29 19:23:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:50,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 452 [2020-11-29 19:23:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:50,347 INFO L225 Difference]: With dead ends: 24403 [2020-11-29 19:23:50,347 INFO L226 Difference]: Without dead ends: 12203 [2020-11-29 19:23:50,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2020-11-29 19:23:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 11282. [2020-11-29 19:23:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11282 states. [2020-11-29 19:23:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11282 states to 11282 states and 12421 transitions. [2020-11-29 19:23:50,536 INFO L78 Accepts]: Start accepts. Automaton has 11282 states and 12421 transitions. Word has length 452 [2020-11-29 19:23:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:50,536 INFO L481 AbstractCegarLoop]: Abstraction has 11282 states and 12421 transitions. [2020-11-29 19:23:50,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11282 states and 12421 transitions. [2020-11-29 19:23:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2020-11-29 19:23:50,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:50,556 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:50,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 19:23:50,557 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:50,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1583749290, now seen corresponding path program 1 times [2020-11-29 19:23:50,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:50,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874897250] [2020-11-29 19:23:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:51,191 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-11-29 19:23:51,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874897250] [2020-11-29 19:23:51,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:51,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:23:51,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072490933] [2020-11-29 19:23:51,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:51,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:51,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:51,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:51,194 INFO L87 Difference]: Start difference. First operand 11282 states and 12421 transitions. Second operand 4 states. [2020-11-29 19:23:53,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:53,350 INFO L93 Difference]: Finished difference Result 26807 states and 29433 transitions. [2020-11-29 19:23:53,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:53,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 501 [2020-11-29 19:23:53,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:53,366 INFO L225 Difference]: With dead ends: 26807 [2020-11-29 19:23:53,366 INFO L226 Difference]: Without dead ends: 13131 [2020-11-29 19:23:53,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13131 states. [2020-11-29 19:23:53,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13131 to 9069. [2020-11-29 19:23:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9069 states. [2020-11-29 19:23:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9069 states to 9069 states and 9877 transitions. [2020-11-29 19:23:53,506 INFO L78 Accepts]: Start accepts. Automaton has 9069 states and 9877 transitions. Word has length 501 [2020-11-29 19:23:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:53,507 INFO L481 AbstractCegarLoop]: Abstraction has 9069 states and 9877 transitions. [2020-11-29 19:23:53,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9069 states and 9877 transitions. [2020-11-29 19:23:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-11-29 19:23:53,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:53,527 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-11-29 19:23:53,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 19:23:53,528 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:53,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:53,529 INFO L82 PathProgramCache]: Analyzing trace with hash -101551647, now seen corresponding path program 1 times [2020-11-29 19:23:53,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:53,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581445373] [2020-11-29 19:23:53,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 927 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-11-29 19:23:54,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581445373] [2020-11-29 19:23:54,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:54,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:54,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184965109] [2020-11-29 19:23:54,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:54,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:54,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:54,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:54,247 INFO L87 Difference]: Start difference. First operand 9069 states and 9877 transitions. Second operand 4 states. [2020-11-29 19:23:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:56,040 INFO L93 Difference]: Finished difference Result 22006 states and 23935 transitions. [2020-11-29 19:23:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:56,041 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 619 [2020-11-29 19:23:56,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:56,054 INFO L225 Difference]: With dead ends: 22006 [2020-11-29 19:23:56,054 INFO L226 Difference]: Without dead ends: 12939 [2020-11-29 19:23:56,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12939 states. [2020-11-29 19:23:56,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12939 to 12571. [2020-11-29 19:23:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12571 states. [2020-11-29 19:23:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12571 states to 12571 states and 13669 transitions. [2020-11-29 19:23:56,253 INFO L78 Accepts]: Start accepts. Automaton has 12571 states and 13669 transitions. Word has length 619 [2020-11-29 19:23:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:56,253 INFO L481 AbstractCegarLoop]: Abstraction has 12571 states and 13669 transitions. [2020-11-29 19:23:56,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 12571 states and 13669 transitions. [2020-11-29 19:23:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2020-11-29 19:23:56,272 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:56,273 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 19:23:56,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 19:23:56,273 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:56,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1562520143, now seen corresponding path program 1 times [2020-11-29 19:23:56,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:56,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532200417] [2020-11-29 19:23:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 843 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2020-11-29 19:23:56,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532200417] [2020-11-29 19:23:56,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:56,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:56,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293413444] [2020-11-29 19:23:56,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:23:56,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:56,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:56,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:56,933 INFO L87 Difference]: Start difference. First operand 12571 states and 13669 transitions. Second operand 4 states. [2020-11-29 19:23:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:58,584 INFO L93 Difference]: Finished difference Result 26805 states and 29128 transitions. [2020-11-29 19:23:58,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:58,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 639 [2020-11-29 19:23:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:23:58,601 INFO L225 Difference]: With dead ends: 26805 [2020-11-29 19:23:58,601 INFO L226 Difference]: Without dead ends: 14052 [2020-11-29 19:23:58,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14052 states. [2020-11-29 19:23:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14052 to 12939. [2020-11-29 19:23:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12939 states. [2020-11-29 19:23:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12939 states to 12939 states and 14053 transitions. [2020-11-29 19:23:58,756 INFO L78 Accepts]: Start accepts. Automaton has 12939 states and 14053 transitions. Word has length 639 [2020-11-29 19:23:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:23:58,756 INFO L481 AbstractCegarLoop]: Abstraction has 12939 states and 14053 transitions. [2020-11-29 19:23:58,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:23:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 12939 states and 14053 transitions. [2020-11-29 19:23:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-11-29 19:23:58,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:23:58,770 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:58,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 19:23:58,770 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:23:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:58,771 INFO L82 PathProgramCache]: Analyzing trace with hash -986890188, now seen corresponding path program 1 times [2020-11-29 19:23:58,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:58,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672181753] [2020-11-29 19:23:58,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 1301 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2020-11-29 19:23:59,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672181753] [2020-11-29 19:23:59,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:59,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:59,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924776474] [2020-11-29 19:23:59,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:23:59,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:59,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:59,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:59,650 INFO L87 Difference]: Start difference. First operand 12939 states and 14053 transitions. Second operand 3 states. [2020-11-29 19:24:00,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:24:00,765 INFO L93 Difference]: Finished difference Result 26075 states and 28315 transitions. [2020-11-29 19:24:00,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:24:00,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 780 [2020-11-29 19:24:00,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:24:00,785 INFO L225 Difference]: With dead ends: 26075 [2020-11-29 19:24:00,785 INFO L226 Difference]: Without dead ends: 13322 [2020-11-29 19:24:00,793 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 [2020-11-29 19:24:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2020-11-29 19:24:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12571. [2020-11-29 19:24:00,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12571 states. [2020-11-29 19:24:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12571 states to 12571 states and 13629 transitions. [2020-11-29 19:24:00,942 INFO L78 Accepts]: Start accepts. Automaton has 12571 states and 13629 transitions. Word has length 780 [2020-11-29 19:24:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:24:00,943 INFO L481 AbstractCegarLoop]: Abstraction has 12571 states and 13629 transitions. [2020-11-29 19:24:00,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:24:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12571 states and 13629 transitions. [2020-11-29 19:24:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-11-29 19:24:00,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:24:00,955 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 19:24:00,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 19:24:00,955 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:24:00,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:24:00,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1055859390, now seen corresponding path program 1 times [2020-11-29 19:24:00,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:24:00,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677613369] [2020-11-29 19:24:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:24:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:24:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1880 backedges. 1355 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2020-11-29 19:24:01,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677613369] [2020-11-29 19:24:01,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:24:01,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:24:01,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054401806] [2020-11-29 19:24:01,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:24:01,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:24:01,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:24:01,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:24:01,915 INFO L87 Difference]: Start difference. First operand 12571 states and 13629 transitions. Second operand 4 states. [2020-11-29 19:24:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:24:03,605 INFO L93 Difference]: Finished difference Result 26253 states and 28457 transitions. [2020-11-29 19:24:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:24:03,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 785 [2020-11-29 19:24:03,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:24:03,620 INFO L225 Difference]: With dead ends: 26253 [2020-11-29 19:24:03,620 INFO L226 Difference]: Without dead ends: 13868 [2020-11-29 19:24:03,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:24:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13868 states. [2020-11-29 19:24:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13868 to 12387. [2020-11-29 19:24:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12387 states. [2020-11-29 19:24:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12387 states to 12387 states and 13421 transitions. [2020-11-29 19:24:03,787 INFO L78 Accepts]: Start accepts. Automaton has 12387 states and 13421 transitions. Word has length 785 [2020-11-29 19:24:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:24:03,788 INFO L481 AbstractCegarLoop]: Abstraction has 12387 states and 13421 transitions. [2020-11-29 19:24:03,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:24:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 12387 states and 13421 transitions. [2020-11-29 19:24:03,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-11-29 19:24:03,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:24:03,806 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 19:24:03,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 19:24:03,807 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:24:03,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:24:03,808 INFO L82 PathProgramCache]: Analyzing trace with hash -353479639, now seen corresponding path program 1 times [2020-11-29 19:24:03,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:24:03,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58660567] [2020-11-29 19:24:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:24:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:24:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 1310 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2020-11-29 19:24:04,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58660567] [2020-11-29 19:24:04,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:24:04,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:24:04,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059585763] [2020-11-29 19:24:04,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:24:04,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:24:04,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:24:04,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:24:04,917 INFO L87 Difference]: Start difference. First operand 12387 states and 13421 transitions. Second operand 4 states. [2020-11-29 19:24:06,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:24:06,749 INFO L93 Difference]: Finished difference Result 26987 states and 29174 transitions. [2020-11-29 19:24:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:24:06,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 799 [2020-11-29 19:24:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:24:06,755 INFO L225 Difference]: With dead ends: 26987 [2020-11-29 19:24:06,755 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:24:06,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:24:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:24:06,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:24:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:24:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:24:06,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 799 [2020-11-29 19:24:06,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:24:06,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:24:06,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:24:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:24:06,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:24:06,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 19:24:06,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:24:07,816 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 512 DAG size of output: 341 [2020-11-29 19:24:08,806 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 341 [2020-11-29 19:24:11,623 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 328 DAG size of output: 76 [2020-11-29 19:24:14,352 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 328 DAG size of output: 76 [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,355 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,356 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,357 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,357 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,357 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,357 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,357 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 19:24:14,357 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,358 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,359 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,360 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse11 (<= (+ ~a29~0 59274) 0)) (.cse12 (= ~a25~0 11)) (.cse0 (<= ~a29~0 275)) (.cse7 (<= ~a29~0 599998)) (.cse13 (< 306 ~a23~0)) (.cse8 (<= ~a23~0 244)) (.cse10 (<= ~a25~0 9)) (.cse4 (<= ~a25~0 10)) (.cse1 (= ~a4~0 0)) (.cse15 (= ~a25~0 10)) (.cse14 (<= ~a29~0 130)) (.cse9 (<= ~a29~0 384312)) (.cse2 (= ~a25~0 13)) (.cse5 (= ~a4~0 1)) (.cse6 (= ~a25~0 12)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse16 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= ~a29~0 245) .cse5) (and .cse1 .cse6 .cse7 .cse8) (and .cse6 .cse5 .cse8) (and .cse9 .cse1 .cse10 .cse3) (and .cse1 .cse2 .cse11 .cse8) (and .cse12 .cse1 .cse3 .cse7) (and .cse11 .cse6 .cse5) (and .cse9 .cse13 .cse6 .cse5) (and .cse12 .cse14 .cse3) (and .cse0 .cse12 .cse1 .cse8) (and .cse12 .cse5) (and .cse0 .cse1 .cse6) (and .cse1 .cse15 .cse16 .cse8) (and .cse4 (<= 381712 ~a29~0) .cse7 .cse5) (and .cse13 .cse15 .cse5) (and .cse1 .cse10 .cse16 .cse8) (and .cse10 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse10 .cse5) (and .cse4 .cse3 .cse5) (and .cse1 .cse15 .cse14) (and .cse9 .cse2 .cse5) (and .cse6 .cse3 .cse16))) [2020-11-29 19:24:14,360 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,360 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 19:24:14,360 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 19:24:14,360 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 19:24:14,361 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,362 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,363 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 19:24:14,363 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 19:24:14,363 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 19:24:14,363 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,363 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,363 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,364 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 19:24:14,365 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 19:24:14,365 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 19:24:14,365 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,365 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse11 (<= (+ ~a29~0 59274) 0)) (.cse12 (= ~a25~0 11)) (.cse0 (<= ~a29~0 275)) (.cse7 (<= ~a29~0 599998)) (.cse13 (< 306 ~a23~0)) (.cse8 (<= ~a23~0 244)) (.cse10 (<= ~a25~0 9)) (.cse4 (<= ~a25~0 10)) (.cse1 (= ~a4~0 0)) (.cse15 (= ~a25~0 10)) (.cse14 (<= ~a29~0 130)) (.cse9 (<= ~a29~0 384312)) (.cse2 (= ~a25~0 13)) (.cse5 (= ~a4~0 1)) (.cse6 (= ~a25~0 12)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse16 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= ~a29~0 245) .cse5) (and .cse1 .cse6 .cse7 .cse8) (and .cse6 .cse5 .cse8) (and .cse9 .cse1 .cse10 .cse3) (and .cse1 .cse2 .cse11 .cse8) (and .cse12 .cse1 .cse3 .cse7) (and .cse11 .cse6 .cse5) (and .cse9 .cse13 .cse6 .cse5) (and .cse12 .cse14 .cse3) (and .cse0 .cse12 .cse1 .cse8) (and .cse12 .cse5) (and .cse0 .cse1 .cse6) (and .cse1 .cse15 .cse16 .cse8) (and .cse4 (<= 381712 ~a29~0) .cse7 .cse5) (and .cse13 .cse15 .cse5) (and .cse1 .cse10 .cse16 .cse8) (and .cse10 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse10 .cse5) (and .cse4 .cse3 .cse5) (and .cse1 .cse15 .cse14) (and .cse9 .cse2 .cse5) (and .cse6 .cse3 .cse16))) [2020-11-29 19:24:14,366 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,366 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,366 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,366 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,366 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,366 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,367 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,367 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,367 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 19:24:14,367 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 19:24:14,367 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 19:24:14,367 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,368 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,369 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,369 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,369 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,369 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,369 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,369 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,370 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:24:14,370 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 19:24:14,370 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 19:24:14,370 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 19:24:14,370 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 19:24:14,370 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 19:24:14,371 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 19:24:14,372 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,372 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,372 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,372 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,372 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 19:24:14,372 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 19:24:14,373 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,373 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,373 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,373 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,373 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,373 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 19:24:14,374 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 19:24:14,375 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:24:14,375 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 19:24:14,375 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,375 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,375 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,375 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 19:24:14,376 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 19:24:14,377 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 19:24:14,377 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 19:24:14,377 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 19:24:14,377 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,377 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,377 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,378 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,379 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,380 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,380 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 19:24:14,380 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 19:24:14,380 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 19:24:14,380 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,380 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,381 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,382 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,383 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,384 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 19:24:14,385 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 19:24:14,386 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 19:24:14,387 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,388 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 19:24:14,389 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,390 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,391 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,391 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 19:24:14,391 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 19:24:14,391 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 19:24:14,391 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 19:24:14,391 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,392 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,393 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,393 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 19:24:14,393 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 19:24:14,393 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:24:14,393 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,393 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 19:24:14,394 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,395 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 19:24:14,396 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 19:24:14,396 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,396 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,396 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 19:24:14,396 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 19:24:14,396 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 19:24:14,397 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 19:24:14,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:24:14 BoogieIcfgContainer [2020-11-29 19:24:14,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:24:14,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:24:14,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:24:14,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:24:14,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:11" (3/4) ... [2020-11-29 19:24:14,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:24:14,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:24:14,480 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:24:14,483 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:24:14,485 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:24:14,758 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a0beaad0-7c20-478a-ae13-41cd8736cb0e/bin/uautomizer/witness.graphml [2020-11-29 19:24:14,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:24:14,760 INFO L168 Benchmark]: Toolchain (without parser) took 67721.80 ms. Allocated memory was 96.5 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 60.8 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,761 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory was 28.9 MB in the beginning and 28.8 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:24:14,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1102.98 ms. Allocated memory is still 96.5 MB. Free memory was 60.6 MB in the beginning and 40.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 246.60 ms. Allocated memory is still 96.5 MB. Free memory was 40.0 MB in the beginning and 59.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,762 INFO L168 Benchmark]: Boogie Preprocessor took 218.14 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 48.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,763 INFO L168 Benchmark]: RCFGBuilder took 2834.37 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 48.9 MB in the beginning and 56.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,763 INFO L168 Benchmark]: TraceAbstraction took 62987.82 ms. Allocated memory was 119.5 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 56.0 MB in the beginning and 678.7 MB in the end (delta: -622.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,764 INFO L168 Benchmark]: Witness Printer took 318.66 ms. Allocated memory is still 1.9 GB. Free memory was 678.7 MB in the beginning and 1.8 GB in the end (delta: -1.1 GB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:24:14,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory was 28.9 MB in the beginning and 28.8 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1102.98 ms. Allocated memory is still 96.5 MB. Free memory was 60.6 MB in the beginning and 40.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 246.60 ms. Allocated memory is still 96.5 MB. Free memory was 40.0 MB in the beginning and 59.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 218.14 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 48.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2834.37 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 48.9 MB in the beginning and 56.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 62987.82 ms. Allocated memory was 119.5 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 56.0 MB in the beginning and 678.7 MB in the end (delta: -622.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. * Witness Printer took 318.66 ms. Allocated memory is still 1.9 GB. Free memory was 678.7 MB in the beginning and 1.8 GB in the end (delta: -1.1 GB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a29 <= 275 && a4 == 0) && a25 == 13) && a23 + 43 <= 0) || ((a25 <= 10 && a29 <= 245) && a4 == 1)) || (((a4 == 0 && a25 == 12) && a29 <= 599998) && a23 <= 244)) || ((a25 == 12 && a4 == 1) && a23 <= 244)) || (((a29 <= 384312 && a4 == 0) && a25 <= 9) && a23 + 43 <= 0)) || (((a4 == 0 && a25 == 13) && a29 + 59274 <= 0) && a23 <= 244)) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a29 <= 599998)) || ((a29 + 59274 <= 0 && a25 == 12) && a4 == 1)) || (((a29 <= 384312 && 306 < a23) && a25 == 12) && a4 == 1)) || ((a25 == 11 && a29 <= 130) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 244)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || (((a4 == 0 && a25 == 10) && a29 <= 220) && a23 <= 244)) || (((a25 <= 10 && 381712 <= a29) && a29 <= 599998) && a4 == 1)) || ((306 < a23 && a25 == 10) && a4 == 1)) || (((a4 == 0 && a25 <= 9) && a29 <= 220) && a23 <= 244)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (a25 <= 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a29 <= 130)) || ((a29 <= 384312 && a25 == 13) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a29 <= 275 && a4 == 0) && a25 == 13) && a23 + 43 <= 0) || ((a25 <= 10 && a29 <= 245) && a4 == 1)) || (((a4 == 0 && a25 == 12) && a29 <= 599998) && a23 <= 244)) || ((a25 == 12 && a4 == 1) && a23 <= 244)) || (((a29 <= 384312 && a4 == 0) && a25 <= 9) && a23 + 43 <= 0)) || (((a4 == 0 && a25 == 13) && a29 + 59274 <= 0) && a23 <= 244)) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a29 <= 599998)) || ((a29 + 59274 <= 0 && a25 == 12) && a4 == 1)) || (((a29 <= 384312 && 306 < a23) && a25 == 12) && a4 == 1)) || ((a25 == 11 && a29 <= 130) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 244)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || (((a4 == 0 && a25 == 10) && a29 <= 220) && a23 <= 244)) || (((a25 <= 10 && 381712 <= a29) && a29 <= 599998) && a4 == 1)) || ((306 < a23 && a25 == 10) && a4 == 1)) || (((a4 == 0 && a25 <= 9) && a29 <= 220) && a23 <= 244)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (a25 <= 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a29 <= 130)) || ((a29 <= 384312 && a25 == 13) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.2s, OverallIterations: 24, TraceHistogramMax: 8, AutomataDifference: 40.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4345 SDtfs, 4537 SDslu, 694 SDs, 0 SdLazy, 18095 SolverSat, 2437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17790occurred 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: 4.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 27790 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 211 NumberOfFragments, 551 HoareAnnotationTreeSize, 3 FomulaSimplifications, 91336 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 53054 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 8378 NumberOfCodeBlocks, 8378 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 8354 ConstructedInterpolants, 0 QuantifiedInterpolants, 8216608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 12087/12087 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...