./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label19.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_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/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 0226d468fdeb806ff8f020ed948853f1c2bdf1bf ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:16:50,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:16:50,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:16:50,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:16:50,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:16:50,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:16:50,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:16:50,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:16:50,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:16:50,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:16:50,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:16:50,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:16:50,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:16:50,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:16:50,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:16:50,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:16:50,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:16:50,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:16:50,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:16:50,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:16:50,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:16:50,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:16:50,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:16:50,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:16:50,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:16:50,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:16:50,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:16:50,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:16:50,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:16:50,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:16:50,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:16:50,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:16:50,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:16:50,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:16:50,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:16:50,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:16:50,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:16:50,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:16:50,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:16:50,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:16:50,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:16:50,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:16:50,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:16:50,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:16:50,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:16:50,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:16:50,600 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:16:50,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:16:50,600 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:16:50,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:16:50,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:16:50,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:16:50,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:16:50,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:16:50,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:16:50,603 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:16:50,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:16:50,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:16:50,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:16:50,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:16:50,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:16:50,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:16:50,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:16:50,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:16:50,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:16:50,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:16:50,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:16:50,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:16:50,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:16:50,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:16:50,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:16:50,608 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_4822d9ca-8b02-4d5b-87b7-cf80988121ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0226d468fdeb806ff8f020ed948853f1c2bdf1bf [2020-11-29 20:16:51,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:16:51,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:16:51,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:16:51,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:16:51,093 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:16:51,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c [2020-11-29 20:16:51,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/data/c38358dcd/7c44f12552a94c97af71e6e996144e1c/FLAGfaddb587e [2020-11-29 20:16:52,151 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:16:52,152 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/sv-benchmarks/c/eca-rers2012/Problem11_label19.c [2020-11-29 20:16:52,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/data/c38358dcd/7c44f12552a94c97af71e6e996144e1c/FLAGfaddb587e [2020-11-29 20:16:52,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/data/c38358dcd/7c44f12552a94c97af71e6e996144e1c [2020-11-29 20:16:52,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:16:52,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:16:52,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:52,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:16:52,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:16:52,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:52" (1/1) ... [2020-11-29 20:16:52,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445294bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:52, skipping insertion in model container [2020-11-29 20:16:52,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:52" (1/1) ... [2020-11-29 20:16:52,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:16:52,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:16:53,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:53,098 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:16:53,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:53,408 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:16:53,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53 WrapperNode [2020-11-29 20:16:53,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:53,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:53,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:16:53,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:16:53,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:53,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:16:53,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:16:53,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:16:53,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... [2020-11-29 20:16:53,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:16:53,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:16:53,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:16:53,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:16:53,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/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 20:16:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:16:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:16:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:16:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:16:56,831 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:16:56,834 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:16:56,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:56 BoogieIcfgContainer [2020-11-29 20:16:56,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:16:56,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:16:56,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:16:56,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:16:56,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:16:52" (1/3) ... [2020-11-29 20:16:56,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@932a9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:56, skipping insertion in model container [2020-11-29 20:16:56,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:53" (2/3) ... [2020-11-29 20:16:56,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@932a9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:56, skipping insertion in model container [2020-11-29 20:16:56,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:56" (3/3) ... [2020-11-29 20:16:56,852 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label19.c [2020-11-29 20:16:56,867 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:16:56,874 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:16:56,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:16:56,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:16:56,952 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:16:56,952 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:16:56,952 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:16:56,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:16:56,953 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:16:56,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:16:56,953 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:16:56,989 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 20:16:57,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 20:16:57,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:57,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:16:57,007 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:16:57,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:57,017 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2020-11-29 20:16:57,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:16:57,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111194276] [2020-11-29 20:16:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:16:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:57,495 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 20:16:57,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111194276] [2020-11-29 20:16:57,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:16:57,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:16:57,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877757514] [2020-11-29 20:16:57,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:16:57,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:16:57,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:16:57,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:16:57,524 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 20:16:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:16:59,870 INFO L93 Difference]: Finished difference Result 764 states and 1353 transitions. [2020-11-29 20:16:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:16:59,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-11-29 20:16:59,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:16:59,893 INFO L225 Difference]: With dead ends: 764 [2020-11-29 20:16:59,894 INFO L226 Difference]: Without dead ends: 416 [2020-11-29 20:16:59,900 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 20:16:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-11-29 20:17:00,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 408. [2020-11-29 20:17:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-11-29 20:17:00,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 657 transitions. [2020-11-29 20:17:00,008 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 657 transitions. Word has length 56 [2020-11-29 20:17:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:00,009 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 657 transitions. [2020-11-29 20:17:00,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 657 transitions. [2020-11-29 20:17:00,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-11-29 20:17:00,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:00,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:00,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:17:00,018 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:00,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:00,019 INFO L82 PathProgramCache]: Analyzing trace with hash -231579464, now seen corresponding path program 1 times [2020-11-29 20:17:00,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:00,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342822421] [2020-11-29 20:17:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:00,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342822421] [2020-11-29 20:17:00,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:00,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:00,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248986555] [2020-11-29 20:17:00,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:00,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:00,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:00,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:00,276 INFO L87 Difference]: Start difference. First operand 408 states and 657 transitions. Second operand 3 states. [2020-11-29 20:17:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:01,580 INFO L93 Difference]: Finished difference Result 1189 states and 1922 transitions. [2020-11-29 20:17:01,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:01,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-11-29 20:17:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:01,591 INFO L225 Difference]: With dead ends: 1189 [2020-11-29 20:17:01,591 INFO L226 Difference]: Without dead ends: 783 [2020-11-29 20:17:01,595 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 20:17:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-11-29 20:17:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2020-11-29 20:17:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-11-29 20:17:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1128 transitions. [2020-11-29 20:17:01,649 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1128 transitions. Word has length 121 [2020-11-29 20:17:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:01,650 INFO L481 AbstractCegarLoop]: Abstraction has 783 states and 1128 transitions. [2020-11-29 20:17:01,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:01,650 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1128 transitions. [2020-11-29 20:17:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-11-29 20:17:01,657 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:01,658 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:01,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:17:01,658 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:01,659 INFO L82 PathProgramCache]: Analyzing trace with hash 640166186, now seen corresponding path program 1 times [2020-11-29 20:17:01,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:01,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672710423] [2020-11-29 20:17:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:01,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672710423] [2020-11-29 20:17:01,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:01,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:01,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290616382] [2020-11-29 20:17:01,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:01,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:01,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:01,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:01,905 INFO L87 Difference]: Start difference. First operand 783 states and 1128 transitions. Second operand 3 states. [2020-11-29 20:17:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:03,489 INFO L93 Difference]: Finished difference Result 1942 states and 2803 transitions. [2020-11-29 20:17:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:03,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-11-29 20:17:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:03,500 INFO L225 Difference]: With dead ends: 1942 [2020-11-29 20:17:03,500 INFO L226 Difference]: Without dead ends: 1161 [2020-11-29 20:17:03,503 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 20:17:03,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-11-29 20:17:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1151. [2020-11-29 20:17:03,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1151 states. [2020-11-29 20:17:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1538 transitions. [2020-11-29 20:17:03,561 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1538 transitions. Word has length 124 [2020-11-29 20:17:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:03,564 INFO L481 AbstractCegarLoop]: Abstraction has 1151 states and 1538 transitions. [2020-11-29 20:17:03,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1538 transitions. [2020-11-29 20:17:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-11-29 20:17:03,577 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:03,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:03,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:17:03,579 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:03,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:03,581 INFO L82 PathProgramCache]: Analyzing trace with hash -560515282, now seen corresponding path program 1 times [2020-11-29 20:17:03,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:03,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791213119] [2020-11-29 20:17:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:03,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791213119] [2020-11-29 20:17:03,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:03,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:03,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415423007] [2020-11-29 20:17:03,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:03,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:03,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:03,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:03,850 INFO L87 Difference]: Start difference. First operand 1151 states and 1538 transitions. Second operand 3 states. [2020-11-29 20:17:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:05,430 INFO L93 Difference]: Finished difference Result 2855 states and 3737 transitions. [2020-11-29 20:17:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:05,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-11-29 20:17:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:05,445 INFO L225 Difference]: With dead ends: 2855 [2020-11-29 20:17:05,445 INFO L226 Difference]: Without dead ends: 1706 [2020-11-29 20:17:05,448 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 20:17:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-11-29 20:17:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1703. [2020-11-29 20:17:05,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1703 states. [2020-11-29 20:17:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2115 transitions. [2020-11-29 20:17:05,512 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2115 transitions. Word has length 125 [2020-11-29 20:17:05,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:05,514 INFO L481 AbstractCegarLoop]: Abstraction has 1703 states and 2115 transitions. [2020-11-29 20:17:05,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2115 transitions. [2020-11-29 20:17:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-11-29 20:17:05,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:05,520 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:05,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:17:05,521 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:05,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:05,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1583146603, now seen corresponding path program 1 times [2020-11-29 20:17:05,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:05,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718879915] [2020-11-29 20:17:05,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-11-29 20:17:05,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718879915] [2020-11-29 20:17:05,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:05,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:05,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496362205] [2020-11-29 20:17:05,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:05,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:05,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:05,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:05,887 INFO L87 Difference]: Start difference. First operand 1703 states and 2115 transitions. Second operand 3 states. [2020-11-29 20:17:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:07,473 INFO L93 Difference]: Finished difference Result 3963 states and 4904 transitions. [2020-11-29 20:17:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:07,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-11-29 20:17:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:07,492 INFO L225 Difference]: With dead ends: 3963 [2020-11-29 20:17:07,492 INFO L226 Difference]: Without dead ends: 2446 [2020-11-29 20:17:07,496 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 20:17:07,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2020-11-29 20:17:07,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2261. [2020-11-29 20:17:07,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-11-29 20:17:07,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2764 transitions. [2020-11-29 20:17:07,570 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2764 transitions. Word has length 199 [2020-11-29 20:17:07,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:07,573 INFO L481 AbstractCegarLoop]: Abstraction has 2261 states and 2764 transitions. [2020-11-29 20:17:07,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:07,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2764 transitions. [2020-11-29 20:17:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-11-29 20:17:07,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:07,580 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:17:07,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:17:07,580 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:07,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,581 INFO L82 PathProgramCache]: Analyzing trace with hash 497249574, now seen corresponding path program 1 times [2020-11-29 20:17:07,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041077478] [2020-11-29 20:17:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:07,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041077478] [2020-11-29 20:17:07,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:07,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:07,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470571524] [2020-11-29 20:17:07,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:07,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:07,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:07,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:07,884 INFO L87 Difference]: Start difference. First operand 2261 states and 2764 transitions. Second operand 3 states. [2020-11-29 20:17:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:09,596 INFO L93 Difference]: Finished difference Result 5263 states and 6503 transitions. [2020-11-29 20:17:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:09,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-11-29 20:17:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:09,621 INFO L225 Difference]: With dead ends: 5263 [2020-11-29 20:17:09,621 INFO L226 Difference]: Without dead ends: 3188 [2020-11-29 20:17:09,626 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 20:17:09,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2020-11-29 20:17:09,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 2997. [2020-11-29 20:17:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2997 states. [2020-11-29 20:17:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3608 transitions. [2020-11-29 20:17:09,726 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3608 transitions. Word has length 236 [2020-11-29 20:17:09,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:09,732 INFO L481 AbstractCegarLoop]: Abstraction has 2997 states and 3608 transitions. [2020-11-29 20:17:09,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3608 transitions. [2020-11-29 20:17:09,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-11-29 20:17:09,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:09,739 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:17:09,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:17:09,740 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:09,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:09,742 INFO L82 PathProgramCache]: Analyzing trace with hash -695962958, now seen corresponding path program 1 times [2020-11-29 20:17:09,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:09,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138370221] [2020-11-29 20:17:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:10,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138370221] [2020-11-29 20:17:10,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:10,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:17:10,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328788502] [2020-11-29 20:17:10,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:17:10,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:10,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:17:10,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:17:10,105 INFO L87 Difference]: Start difference. First operand 2997 states and 3608 transitions. Second operand 4 states. [2020-11-29 20:17:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:13,042 INFO L93 Difference]: Finished difference Result 9321 states and 11401 transitions. [2020-11-29 20:17:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:17:13,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 237 [2020-11-29 20:17:13,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:13,090 INFO L225 Difference]: With dead ends: 9321 [2020-11-29 20:17:13,090 INFO L226 Difference]: Without dead ends: 6326 [2020-11-29 20:17:13,097 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 20:17:13,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6326 states. [2020-11-29 20:17:13,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6326 to 5764. [2020-11-29 20:17:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5764 states. [2020-11-29 20:17:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 6980 transitions. [2020-11-29 20:17:13,317 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 6980 transitions. Word has length 237 [2020-11-29 20:17:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:13,318 INFO L481 AbstractCegarLoop]: Abstraction has 5764 states and 6980 transitions. [2020-11-29 20:17:13,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:17:13,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 6980 transitions. [2020-11-29 20:17:13,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-29 20:17:13,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:13,325 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:13,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:17:13,326 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:13,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1736647681, now seen corresponding path program 1 times [2020-11-29 20:17:13,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:13,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812531504] [2020-11-29 20:17:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:13,583 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-29 20:17:13,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812531504] [2020-11-29 20:17:13,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:13,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:13,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174702002] [2020-11-29 20:17:13,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:13,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:13,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:13,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:13,587 INFO L87 Difference]: Start difference. First operand 5764 states and 6980 transitions. Second operand 3 states. [2020-11-29 20:17:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:15,380 INFO L93 Difference]: Finished difference Result 13380 states and 16307 transitions. [2020-11-29 20:17:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:15,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-11-29 20:17:15,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:15,436 INFO L225 Difference]: With dead ends: 13380 [2020-11-29 20:17:15,437 INFO L226 Difference]: Without dead ends: 7986 [2020-11-29 20:17:15,446 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 20:17:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2020-11-29 20:17:15,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 7431. [2020-11-29 20:17:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7431 states. [2020-11-29 20:17:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7431 states to 7431 states and 8981 transitions. [2020-11-29 20:17:15,698 INFO L78 Accepts]: Start accepts. Automaton has 7431 states and 8981 transitions. Word has length 248 [2020-11-29 20:17:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:15,699 INFO L481 AbstractCegarLoop]: Abstraction has 7431 states and 8981 transitions. [2020-11-29 20:17:15,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7431 states and 8981 transitions. [2020-11-29 20:17:15,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-11-29 20:17:15,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:15,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:17:15,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:17:15,710 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:15,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1897960143, now seen corresponding path program 1 times [2020-11-29 20:17:15,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:15,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703492178] [2020-11-29 20:17:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-11-29 20:17:16,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703492178] [2020-11-29 20:17:16,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:16,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:16,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102548724] [2020-11-29 20:17:16,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:16,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:16,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:16,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:16,026 INFO L87 Difference]: Start difference. First operand 7431 states and 8981 transitions. Second operand 3 states. [2020-11-29 20:17:17,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:17,739 INFO L93 Difference]: Finished difference Result 17067 states and 20918 transitions. [2020-11-29 20:17:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:17,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2020-11-29 20:17:17,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:17,818 INFO L225 Difference]: With dead ends: 17067 [2020-11-29 20:17:17,819 INFO L226 Difference]: Without dead ends: 9822 [2020-11-29 20:17:17,833 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 20:17:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9822 states. [2020-11-29 20:17:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9822 to 9086. [2020-11-29 20:17:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9086 states. [2020-11-29 20:17:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 10903 transitions. [2020-11-29 20:17:18,071 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 10903 transitions. Word has length 281 [2020-11-29 20:17:18,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:18,072 INFO L481 AbstractCegarLoop]: Abstraction has 9086 states and 10903 transitions. [2020-11-29 20:17:18,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 10903 transitions. [2020-11-29 20:17:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-11-29 20:17:18,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:18,087 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:18,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:17:18,087 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:18,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1935768861, now seen corresponding path program 1 times [2020-11-29 20:17:18,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:18,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314463917] [2020-11-29 20:17:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 20:17:18,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314463917] [2020-11-29 20:17:18,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:18,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:18,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732244473] [2020-11-29 20:17:18,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:18,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:18,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:18,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:18,410 INFO L87 Difference]: Start difference. First operand 9086 states and 10903 transitions. Second operand 3 states. [2020-11-29 20:17:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:19,997 INFO L93 Difference]: Finished difference Result 21129 states and 25448 transitions. [2020-11-29 20:17:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:19,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 319 [2020-11-29 20:17:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:20,037 INFO L225 Difference]: With dead ends: 21129 [2020-11-29 20:17:20,037 INFO L226 Difference]: Without dead ends: 12413 [2020-11-29 20:17:20,050 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 20:17:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12413 states. [2020-11-29 20:17:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12413 to 12043. [2020-11-29 20:17:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12043 states. [2020-11-29 20:17:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12043 states to 12043 states and 14225 transitions. [2020-11-29 20:17:20,298 INFO L78 Accepts]: Start accepts. Automaton has 12043 states and 14225 transitions. Word has length 319 [2020-11-29 20:17:20,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:20,299 INFO L481 AbstractCegarLoop]: Abstraction has 12043 states and 14225 transitions. [2020-11-29 20:17:20,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12043 states and 14225 transitions. [2020-11-29 20:17:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-11-29 20:17:20,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:20,315 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:20,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:17:20,316 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:20,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:20,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1735538383, now seen corresponding path program 1 times [2020-11-29 20:17:20,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:20,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256038374] [2020-11-29 20:17:20,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 318 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:20,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256038374] [2020-11-29 20:17:20,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951664435] [2020-11-29 20:17:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:17:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:20,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:17:21,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:17:21,189 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 20:17:21,465 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-11-29 20:17:21,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:17:21,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-29 20:17:21,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636533700] [2020-11-29 20:17:21,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:21,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:21,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:21,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:17:21,469 INFO L87 Difference]: Start difference. First operand 12043 states and 14225 transitions. Second operand 3 states. [2020-11-29 20:17:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:23,322 INFO L93 Difference]: Finished difference Result 24269 states and 28645 transitions. [2020-11-29 20:17:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:23,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2020-11-29 20:17:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:23,352 INFO L225 Difference]: With dead ends: 24269 [2020-11-29 20:17:23,353 INFO L226 Difference]: Without dead ends: 12227 [2020-11-29 20:17:23,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:17:23,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12227 states. [2020-11-29 20:17:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12227 to 12226. [2020-11-29 20:17:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12226 states. [2020-11-29 20:17:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12226 states to 12226 states and 14275 transitions. [2020-11-29 20:17:23,680 INFO L78 Accepts]: Start accepts. Automaton has 12226 states and 14275 transitions. Word has length 327 [2020-11-29 20:17:23,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:23,680 INFO L481 AbstractCegarLoop]: Abstraction has 12226 states and 14275 transitions. [2020-11-29 20:17:23,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 12226 states and 14275 transitions. [2020-11-29 20:17:23,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-11-29 20:17:23,699 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:23,699 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:23,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 20:17:23,925 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:23,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2083292426, now seen corresponding path program 1 times [2020-11-29 20:17:23,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:23,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619881354] [2020-11-29 20:17:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 242 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:24,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619881354] [2020-11-29 20:17:24,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734233649] [2020-11-29 20:17:24,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:17:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:24,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:17:24,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:17:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 20:17:24,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:17:24,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 20:17:24,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572022563] [2020-11-29 20:17:24,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:24,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:24,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:24,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:17:24,824 INFO L87 Difference]: Start difference. First operand 12226 states and 14275 transitions. Second operand 3 states. [2020-11-29 20:17:26,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:26,766 INFO L93 Difference]: Finished difference Result 25759 states and 30250 transitions. [2020-11-29 20:17:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:26,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2020-11-29 20:17:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:26,800 INFO L225 Difference]: With dead ends: 25759 [2020-11-29 20:17:26,801 INFO L226 Difference]: Without dead ends: 13903 [2020-11-29 20:17:26,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:17:26,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13903 states. [2020-11-29 20:17:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13903 to 13712. [2020-11-29 20:17:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13712 states. [2020-11-29 20:17:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13712 states to 13712 states and 15940 transitions. [2020-11-29 20:17:27,169 INFO L78 Accepts]: Start accepts. Automaton has 13712 states and 15940 transitions. Word has length 329 [2020-11-29 20:17:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:27,171 INFO L481 AbstractCegarLoop]: Abstraction has 13712 states and 15940 transitions. [2020-11-29 20:17:27,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 13712 states and 15940 transitions. [2020-11-29 20:17:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-11-29 20:17:27,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:27,189 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:17:27,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 20:17:27,418 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:27,418 INFO L82 PathProgramCache]: Analyzing trace with hash 453491289, now seen corresponding path program 1 times [2020-11-29 20:17:27,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:27,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024995305] [2020-11-29 20:17:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 20:17:27,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024995305] [2020-11-29 20:17:27,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:27,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:17:27,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756267944] [2020-11-29 20:17:27,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:27,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:27,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:27,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:27,795 INFO L87 Difference]: Start difference. First operand 13712 states and 15940 transitions. Second operand 3 states. [2020-11-29 20:17:28,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:28,975 INFO L93 Difference]: Finished difference Result 26859 states and 31274 transitions. [2020-11-29 20:17:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:28,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-11-29 20:17:28,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:29,005 INFO L225 Difference]: With dead ends: 26859 [2020-11-29 20:17:29,006 INFO L226 Difference]: Without dead ends: 13517 [2020-11-29 20:17:29,026 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 20:17:29,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13517 states. [2020-11-29 20:17:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13517 to 13512. [2020-11-29 20:17:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13512 states. [2020-11-29 20:17:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 15705 transitions. [2020-11-29 20:17:29,352 INFO L78 Accepts]: Start accepts. Automaton has 13512 states and 15705 transitions. Word has length 338 [2020-11-29 20:17:29,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:29,353 INFO L481 AbstractCegarLoop]: Abstraction has 13512 states and 15705 transitions. [2020-11-29 20:17:29,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 13512 states and 15705 transitions. [2020-11-29 20:17:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-11-29 20:17:29,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:29,381 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:29,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 20:17:29,381 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:29,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:29,382 INFO L82 PathProgramCache]: Analyzing trace with hash 283815409, now seen corresponding path program 1 times [2020-11-29 20:17:29,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:29,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293110675] [2020-11-29 20:17:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 20:17:29,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293110675] [2020-11-29 20:17:29,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:29,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:29,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442872477] [2020-11-29 20:17:29,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:17:29,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:29,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:17:29,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:17:29,776 INFO L87 Difference]: Start difference. First operand 13512 states and 15705 transitions. Second operand 4 states. [2020-11-29 20:17:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:32,236 INFO L93 Difference]: Finished difference Result 28321 states and 32949 transitions. [2020-11-29 20:17:32,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:17:32,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 350 [2020-11-29 20:17:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:32,277 INFO L225 Difference]: With dead ends: 28321 [2020-11-29 20:17:32,277 INFO L226 Difference]: Without dead ends: 15179 [2020-11-29 20:17:32,289 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 20:17:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15179 states. [2020-11-29 20:17:32,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15179 to 15172. [2020-11-29 20:17:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15172 states. [2020-11-29 20:17:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15172 states to 15172 states and 17535 transitions. [2020-11-29 20:17:32,570 INFO L78 Accepts]: Start accepts. Automaton has 15172 states and 17535 transitions. Word has length 350 [2020-11-29 20:17:32,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:32,571 INFO L481 AbstractCegarLoop]: Abstraction has 15172 states and 17535 transitions. [2020-11-29 20:17:32,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:17:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 15172 states and 17535 transitions. [2020-11-29 20:17:32,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-11-29 20:17:32,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:32,585 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 20:17:32,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 20:17:32,585 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:32,586 INFO L82 PathProgramCache]: Analyzing trace with hash 135801115, now seen corresponding path program 1 times [2020-11-29 20:17:32,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:32,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736531397] [2020-11-29 20:17:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 20:17:32,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736531397] [2020-11-29 20:17:32,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:32,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:17:32,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269804839] [2020-11-29 20:17:32,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:17:32,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:32,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:17:32,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:17:32,966 INFO L87 Difference]: Start difference. First operand 15172 states and 17535 transitions. Second operand 4 states. [2020-11-29 20:17:35,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:35,443 INFO L93 Difference]: Finished difference Result 33119 states and 38374 transitions. [2020-11-29 20:17:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:17:35,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 364 [2020-11-29 20:17:35,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:35,477 INFO L225 Difference]: With dead ends: 33119 [2020-11-29 20:17:35,478 INFO L226 Difference]: Without dead ends: 18317 [2020-11-29 20:17:35,485 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 20:17:35,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18317 states. [2020-11-29 20:17:35,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18317 to 16832. [2020-11-29 20:17:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16832 states. [2020-11-29 20:17:35,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16832 states to 16832 states and 19511 transitions. [2020-11-29 20:17:35,796 INFO L78 Accepts]: Start accepts. Automaton has 16832 states and 19511 transitions. Word has length 364 [2020-11-29 20:17:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:35,797 INFO L481 AbstractCegarLoop]: Abstraction has 16832 states and 19511 transitions. [2020-11-29 20:17:35,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:17:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 16832 states and 19511 transitions. [2020-11-29 20:17:35,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-11-29 20:17:35,813 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:35,813 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:35,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 20:17:35,814 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:35,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash 138893744, now seen corresponding path program 1 times [2020-11-29 20:17:35,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:35,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913569737] [2020-11-29 20:17:35,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 20:17:36,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913569737] [2020-11-29 20:17:36,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:36,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:36,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642138142] [2020-11-29 20:17:36,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:17:36,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:36,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:17:36,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:17:36,211 INFO L87 Difference]: Start difference. First operand 16832 states and 19511 transitions. Second operand 4 states. [2020-11-29 20:17:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:38,851 INFO L93 Difference]: Finished difference Result 44193 states and 50935 transitions. [2020-11-29 20:17:38,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:17:38,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 377 [2020-11-29 20:17:38,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:38,903 INFO L225 Difference]: With dead ends: 44193 [2020-11-29 20:17:38,903 INFO L226 Difference]: Without dead ends: 26995 [2020-11-29 20:17:38,921 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 20:17:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26995 states. [2020-11-29 20:17:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26995 to 22740. [2020-11-29 20:17:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22740 states. [2020-11-29 20:17:39,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22740 states to 22740 states and 25955 transitions. [2020-11-29 20:17:39,358 INFO L78 Accepts]: Start accepts. Automaton has 22740 states and 25955 transitions. Word has length 377 [2020-11-29 20:17:39,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:39,359 INFO L481 AbstractCegarLoop]: Abstraction has 22740 states and 25955 transitions. [2020-11-29 20:17:39,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:17:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 22740 states and 25955 transitions. [2020-11-29 20:17:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-11-29 20:17:39,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:39,380 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:39,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 20:17:39,381 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:39,381 INFO L82 PathProgramCache]: Analyzing trace with hash -649462216, now seen corresponding path program 1 times [2020-11-29 20:17:39,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:39,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27008405] [2020-11-29 20:17:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 20:17:39,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27008405] [2020-11-29 20:17:39,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:39,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:39,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832149631] [2020-11-29 20:17:39,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:39,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:39,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:39,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:39,818 INFO L87 Difference]: Start difference. First operand 22740 states and 25955 transitions. Second operand 3 states. [2020-11-29 20:17:41,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:41,431 INFO L93 Difference]: Finished difference Result 48794 states and 55611 transitions. [2020-11-29 20:17:41,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:41,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 403 [2020-11-29 20:17:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:41,462 INFO L225 Difference]: With dead ends: 48794 [2020-11-29 20:17:41,462 INFO L226 Difference]: Without dead ends: 26424 [2020-11-29 20:17:41,477 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 20:17:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26424 states. [2020-11-29 20:17:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26424 to 25120. [2020-11-29 20:17:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25120 states. [2020-11-29 20:17:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25120 states to 25120 states and 28372 transitions. [2020-11-29 20:17:41,862 INFO L78 Accepts]: Start accepts. Automaton has 25120 states and 28372 transitions. Word has length 403 [2020-11-29 20:17:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:41,863 INFO L481 AbstractCegarLoop]: Abstraction has 25120 states and 28372 transitions. [2020-11-29 20:17:41,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 25120 states and 28372 transitions. [2020-11-29 20:17:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2020-11-29 20:17:41,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:41,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:41,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 20:17:41,882 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:41,882 INFO L82 PathProgramCache]: Analyzing trace with hash -682663874, now seen corresponding path program 1 times [2020-11-29 20:17:41,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:41,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114935445] [2020-11-29 20:17:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 20:17:42,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114935445] [2020-11-29 20:17:42,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:42,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:42,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593253770] [2020-11-29 20:17:42,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:17:42,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:42,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:42,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:42,335 INFO L87 Difference]: Start difference. First operand 25120 states and 28372 transitions. Second operand 3 states. [2020-11-29 20:17:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:43,550 INFO L93 Difference]: Finished difference Result 28250 states and 31814 transitions. [2020-11-29 20:17:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:43,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 408 [2020-11-29 20:17:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:43,598 INFO L225 Difference]: With dead ends: 28250 [2020-11-29 20:17:43,598 INFO L226 Difference]: Without dead ends: 28248 [2020-11-29 20:17:43,607 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 20:17:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28248 states. [2020-11-29 20:17:44,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28248 to 24568. [2020-11-29 20:17:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24568 states. [2020-11-29 20:17:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24568 states to 24568 states and 27766 transitions. [2020-11-29 20:17:44,080 INFO L78 Accepts]: Start accepts. Automaton has 24568 states and 27766 transitions. Word has length 408 [2020-11-29 20:17:44,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:44,081 INFO L481 AbstractCegarLoop]: Abstraction has 24568 states and 27766 transitions. [2020-11-29 20:17:44,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:17:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 24568 states and 27766 transitions. [2020-11-29 20:17:44,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-11-29 20:17:44,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:44,098 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:44,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 20:17:44,098 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:44,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1930067152, now seen corresponding path program 1 times [2020-11-29 20:17:44,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:44,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514593399] [2020-11-29 20:17:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 20:17:44,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514593399] [2020-11-29 20:17:44,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:44,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:17:44,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431060660] [2020-11-29 20:17:44,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:17:44,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:44,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:17:44,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:17:44,521 INFO L87 Difference]: Start difference. First operand 24568 states and 27766 transitions. Second operand 4 states. [2020-11-29 20:17:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:47,160 INFO L93 Difference]: Finished difference Result 52825 states and 59684 transitions. [2020-11-29 20:17:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:17:47,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 427 [2020-11-29 20:17:47,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:47,193 INFO L225 Difference]: With dead ends: 52825 [2020-11-29 20:17:47,193 INFO L226 Difference]: Without dead ends: 28627 [2020-11-29 20:17:47,207 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 20:17:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28627 states. [2020-11-29 20:17:47,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28627 to 24937. [2020-11-29 20:17:47,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24937 states. [2020-11-29 20:17:47,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24937 states to 24937 states and 28085 transitions. [2020-11-29 20:17:47,597 INFO L78 Accepts]: Start accepts. Automaton has 24937 states and 28085 transitions. Word has length 427 [2020-11-29 20:17:47,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:47,598 INFO L481 AbstractCegarLoop]: Abstraction has 24937 states and 28085 transitions. [2020-11-29 20:17:47,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:17:47,598 INFO L276 IsEmpty]: Start isEmpty. Operand 24937 states and 28085 transitions. [2020-11-29 20:17:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2020-11-29 20:17:47,610 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:47,611 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-29 20:17:47,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 20:17:47,611 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:47,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:47,612 INFO L82 PathProgramCache]: Analyzing trace with hash -745075772, now seen corresponding path program 1 times [2020-11-29 20:17:47,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:47,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836070162] [2020-11-29 20:17:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 249 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:48,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836070162] [2020-11-29 20:17:48,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845242592] [2020-11-29 20:17:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:17:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:48,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:17:48,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:17:48,591 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:17:48,657 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:17:48,680 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:17:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 230 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:49,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:17:49,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2020-11-29 20:17:49,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173638897] [2020-11-29 20:17:49,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 20:17:49,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:49,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 20:17:49,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:17:49,482 INFO L87 Difference]: Start difference. First operand 24937 states and 28085 transitions. Second operand 9 states. [2020-11-29 20:17:58,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:58,950 INFO L93 Difference]: Finished difference Result 62780 states and 70299 transitions. [2020-11-29 20:17:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 20:17:58,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 430 [2020-11-29 20:17:58,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:17:59,005 INFO L225 Difference]: With dead ends: 62780 [2020-11-29 20:17:59,005 INFO L226 Difference]: Without dead ends: 38213 [2020-11-29 20:17:59,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-11-29 20:17:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38213 states. [2020-11-29 20:17:59,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38213 to 31933. [2020-11-29 20:17:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31933 states. [2020-11-29 20:17:59,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31933 states to 31933 states and 35610 transitions. [2020-11-29 20:17:59,506 INFO L78 Accepts]: Start accepts. Automaton has 31933 states and 35610 transitions. Word has length 430 [2020-11-29 20:17:59,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:17:59,506 INFO L481 AbstractCegarLoop]: Abstraction has 31933 states and 35610 transitions. [2020-11-29 20:17:59,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 20:17:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 31933 states and 35610 transitions. [2020-11-29 20:17:59,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-11-29 20:17:59,523 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:17:59,525 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:17:59,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:17:59,741 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:17:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:59,742 INFO L82 PathProgramCache]: Analyzing trace with hash -766172119, now seen corresponding path program 1 times [2020-11-29 20:17:59,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:59,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135950420] [2020-11-29 20:17:59,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-11-29 20:18:00,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135950420] [2020-11-29 20:18:00,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:00,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:18:00,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924838029] [2020-11-29 20:18:00,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:18:00,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:00,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:00,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:18:00,092 INFO L87 Difference]: Start difference. First operand 31933 states and 35610 transitions. Second operand 3 states. [2020-11-29 20:18:01,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:01,588 INFO L93 Difference]: Finished difference Result 36351 states and 40374 transitions. [2020-11-29 20:18:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:18:01,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 444 [2020-11-29 20:18:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:01,635 INFO L225 Difference]: With dead ends: 36351 [2020-11-29 20:18:01,635 INFO L226 Difference]: Without dead ends: 36349 [2020-11-29 20:18:01,644 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 20:18:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36349 states. [2020-11-29 20:18:02,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36349 to 31749. [2020-11-29 20:18:02,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31749 states. [2020-11-29 20:18:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 35418 transitions. [2020-11-29 20:18:02,265 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 35418 transitions. Word has length 444 [2020-11-29 20:18:02,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:02,266 INFO L481 AbstractCegarLoop]: Abstraction has 31749 states and 35418 transitions. [2020-11-29 20:18:02,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:18:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 35418 transitions. [2020-11-29 20:18:02,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2020-11-29 20:18:02,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:02,298 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:02,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 20:18:02,298 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:02,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1915459621, now seen corresponding path program 1 times [2020-11-29 20:18:02,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:02,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380788438] [2020-11-29 20:18:02,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 623 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-11-29 20:18:02,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380788438] [2020-11-29 20:18:02,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:02,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:18:02,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103810798] [2020-11-29 20:18:02,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:18:02,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:02,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:02,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:18:02,779 INFO L87 Difference]: Start difference. First operand 31749 states and 35418 transitions. Second operand 3 states. [2020-11-29 20:18:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:04,383 INFO L93 Difference]: Finished difference Result 62216 states and 69532 transitions. [2020-11-29 20:18:04,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:18:04,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 473 [2020-11-29 20:18:04,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:04,431 INFO L225 Difference]: With dead ends: 62216 [2020-11-29 20:18:04,431 INFO L226 Difference]: Without dead ends: 33421 [2020-11-29 20:18:04,447 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 20:18:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33421 states. [2020-11-29 20:18:04,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33421 to 31381. [2020-11-29 20:18:04,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31381 states. [2020-11-29 20:18:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31381 states to 31381 states and 34986 transitions. [2020-11-29 20:18:04,903 INFO L78 Accepts]: Start accepts. Automaton has 31381 states and 34986 transitions. Word has length 473 [2020-11-29 20:18:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:04,903 INFO L481 AbstractCegarLoop]: Abstraction has 31381 states and 34986 transitions. [2020-11-29 20:18:04,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:18:04,904 INFO L276 IsEmpty]: Start isEmpty. Operand 31381 states and 34986 transitions. [2020-11-29 20:18:04,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-11-29 20:18:04,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:04,928 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:04,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 20:18:04,929 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:04,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1450364733, now seen corresponding path program 1 times [2020-11-29 20:18:04,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:04,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875475405] [2020-11-29 20:18:04,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 20:18:05,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875475405] [2020-11-29 20:18:05,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:05,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:18:05,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238874963] [2020-11-29 20:18:05,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:18:05,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:05,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:18:05,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:18:05,767 INFO L87 Difference]: Start difference. First operand 31381 states and 34986 transitions. Second operand 4 states. [2020-11-29 20:18:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:08,371 INFO L93 Difference]: Finished difference Result 59996 states and 67081 transitions. [2020-11-29 20:18:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:18:08,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 489 [2020-11-29 20:18:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:08,423 INFO L225 Difference]: With dead ends: 59996 [2020-11-29 20:18:08,424 INFO L226 Difference]: Without dead ends: 31569 [2020-11-29 20:18:08,440 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 20:18:08,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31569 states. [2020-11-29 20:18:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31569 to 31562. [2020-11-29 20:18:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31562 states. [2020-11-29 20:18:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31562 states to 31562 states and 34882 transitions. [2020-11-29 20:18:08,885 INFO L78 Accepts]: Start accepts. Automaton has 31562 states and 34882 transitions. Word has length 489 [2020-11-29 20:18:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:08,885 INFO L481 AbstractCegarLoop]: Abstraction has 31562 states and 34882 transitions. [2020-11-29 20:18:08,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:18:08,886 INFO L276 IsEmpty]: Start isEmpty. Operand 31562 states and 34882 transitions. [2020-11-29 20:18:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-11-29 20:18:08,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:08,912 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:08,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 20:18:08,913 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:08,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:08,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1912825977, now seen corresponding path program 1 times [2020-11-29 20:18:08,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:08,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963530539] [2020-11-29 20:18:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 540 proven. 64 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-11-29 20:18:09,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963530539] [2020-11-29 20:18:09,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730999965] [2020-11-29 20:18:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:18:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:10,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:18:10,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:18:10,536 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 20:18:10,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:18:10,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2020-11-29 20:18:10,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146610277] [2020-11-29 20:18:10,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:18:10,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:10,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:18:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:18:10,538 INFO L87 Difference]: Start difference. First operand 31562 states and 34882 transitions. Second operand 4 states. [2020-11-29 20:18:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:12,954 INFO L93 Difference]: Finished difference Result 60182 states and 66619 transitions. [2020-11-29 20:18:12,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:18:12,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 505 [2020-11-29 20:18:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:12,995 INFO L225 Difference]: With dead ends: 60182 [2020-11-29 20:18:12,995 INFO L226 Difference]: Without dead ends: 31574 [2020-11-29 20:18:13,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:18:13,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31574 states. [2020-11-29 20:18:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31574 to 31008. [2020-11-29 20:18:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31008 states. [2020-11-29 20:18:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31008 states to 31008 states and 34260 transitions. [2020-11-29 20:18:13,629 INFO L78 Accepts]: Start accepts. Automaton has 31008 states and 34260 transitions. Word has length 505 [2020-11-29 20:18:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:13,630 INFO L481 AbstractCegarLoop]: Abstraction has 31008 states and 34260 transitions. [2020-11-29 20:18:13,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:18:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 31008 states and 34260 transitions. [2020-11-29 20:18:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-11-29 20:18:13,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:13,653 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, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:13,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:18:13,854 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:13,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1027645667, now seen corresponding path program 1 times [2020-11-29 20:18:13,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:13,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170647481] [2020-11-29 20:18:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 464 proven. 222 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 20:18:15,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170647481] [2020-11-29 20:18:15,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67464375] [2020-11-29 20:18:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:18:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:15,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 20:18:15,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:18:15,450 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 20:18:15,463 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:15,475 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:15,490 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:15,497 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 464 proven. 222 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 20:18:16,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:18:16,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2020-11-29 20:18:16,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143065263] [2020-11-29 20:18:16,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:18:16,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:16,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:18:16,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:18:16,145 INFO L87 Difference]: Start difference. First operand 31008 states and 34260 transitions. Second operand 8 states. [2020-11-29 20:18:24,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:24,876 INFO L93 Difference]: Finished difference Result 65245 states and 71937 transitions. [2020-11-29 20:18:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 20:18:24,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 505 [2020-11-29 20:18:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:24,923 INFO L225 Difference]: With dead ends: 65245 [2020-11-29 20:18:24,923 INFO L226 Difference]: Without dead ends: 34607 [2020-11-29 20:18:24,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 503 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2020-11-29 20:18:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34607 states. [2020-11-29 20:18:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34607 to 28398. [2020-11-29 20:18:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28398 states. [2020-11-29 20:18:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28398 states to 28398 states and 31127 transitions. [2020-11-29 20:18:25,414 INFO L78 Accepts]: Start accepts. Automaton has 28398 states and 31127 transitions. Word has length 505 [2020-11-29 20:18:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:25,415 INFO L481 AbstractCegarLoop]: Abstraction has 28398 states and 31127 transitions. [2020-11-29 20:18:25,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:18:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 28398 states and 31127 transitions. [2020-11-29 20:18:25,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-11-29 20:18:25,444 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:25,445 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, 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, 3, 3, 3, 3, 3, 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, 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 20:18:25,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-29 20:18:25,673 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:25,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:25,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1307013774, now seen corresponding path program 1 times [2020-11-29 20:18:25,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:25,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296142578] [2020-11-29 20:18:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 410 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-11-29 20:18:26,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296142578] [2020-11-29 20:18:26,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197232045] [2020-11-29 20:18:26,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:18:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:26,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:18:26,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:18:26,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:26,937 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:26,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:18:27,052 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:18:27,054 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 20:18:27,056 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 20:18:27,060 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 20:18:27,076 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 20:18:27,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 20:18:27,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 20:18:27,103 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 20:18:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 356 proven. 260 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-11-29 20:18:27,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:18:27,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-11-29 20:18:27,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101345465] [2020-11-29 20:18:27,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 20:18:27,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:27,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 20:18:27,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:18:27,950 INFO L87 Difference]: Start difference. First operand 28398 states and 31127 transitions. Second operand 7 states. [2020-11-29 20:18:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:35,665 INFO L93 Difference]: Finished difference Result 69878 states and 76536 transitions. [2020-11-29 20:18:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:18:35,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2020-11-29 20:18:35,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:35,717 INFO L225 Difference]: With dead ends: 69878 [2020-11-29 20:18:35,717 INFO L226 Difference]: Without dead ends: 42588 [2020-11-29 20:18:35,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 538 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:18:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42588 states. [2020-11-29 20:18:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42588 to 34106. [2020-11-29 20:18:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34106 states. [2020-11-29 20:18:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34106 states to 34106 states and 37344 transitions. [2020-11-29 20:18:36,520 INFO L78 Accepts]: Start accepts. Automaton has 34106 states and 37344 transitions. Word has length 541 [2020-11-29 20:18:36,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:36,521 INFO L481 AbstractCegarLoop]: Abstraction has 34106 states and 37344 transitions. [2020-11-29 20:18:36,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 20:18:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 34106 states and 37344 transitions. [2020-11-29 20:18:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-11-29 20:18:36,547 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:36,548 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:36,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:18:36,749 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:36,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:36,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1036175741, now seen corresponding path program 1 times [2020-11-29 20:18:36,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:36,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80421467] [2020-11-29 20:18:36,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:37,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 766 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2020-11-29 20:18:37,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80421467] [2020-11-29 20:18:37,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:37,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:18:37,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10438608] [2020-11-29 20:18:37,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:18:37,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:37,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:37,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:18:37,390 INFO L87 Difference]: Start difference. First operand 34106 states and 37344 transitions. Second operand 3 states. [2020-11-29 20:18:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:39,364 INFO L93 Difference]: Finished difference Result 65813 states and 72123 transitions. [2020-11-29 20:18:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:18:39,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 543 [2020-11-29 20:18:39,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:39,406 INFO L225 Difference]: With dead ends: 65813 [2020-11-29 20:18:39,406 INFO L226 Difference]: Without dead ends: 34289 [2020-11-29 20:18:39,419 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 20:18:39,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2020-11-29 20:18:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 33366. [2020-11-29 20:18:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33366 states. [2020-11-29 20:18:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33366 states to 33366 states and 36259 transitions. [2020-11-29 20:18:39,907 INFO L78 Accepts]: Start accepts. Automaton has 33366 states and 36259 transitions. Word has length 543 [2020-11-29 20:18:39,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:39,908 INFO L481 AbstractCegarLoop]: Abstraction has 33366 states and 36259 transitions. [2020-11-29 20:18:39,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:18:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand 33366 states and 36259 transitions. [2020-11-29 20:18:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-11-29 20:18:39,926 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:39,926 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, 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, 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, 2, 2, 2, 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] [2020-11-29 20:18:39,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-29 20:18:39,927 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:39,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:39,927 INFO L82 PathProgramCache]: Analyzing trace with hash 121878913, now seen corresponding path program 1 times [2020-11-29 20:18:39,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:39,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100913909] [2020-11-29 20:18:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 650 proven. 256 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2020-11-29 20:18:41,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100913909] [2020-11-29 20:18:41,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534283950] [2020-11-29 20:18:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:18:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:41,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:18:41,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:18:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 798 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-11-29 20:18:41,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:18:41,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-11-29 20:18:41,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322266277] [2020-11-29 20:18:41,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:18:41,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:41,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:41,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:18:41,729 INFO L87 Difference]: Start difference. First operand 33366 states and 36259 transitions. Second operand 3 states. [2020-11-29 20:18:43,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:43,624 INFO L93 Difference]: Finished difference Result 68204 states and 73862 transitions. [2020-11-29 20:18:43,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:18:43,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 563 [2020-11-29 20:18:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:43,672 INFO L225 Difference]: With dead ends: 68204 [2020-11-29 20:18:43,672 INFO L226 Difference]: Without dead ends: 36684 [2020-11-29 20:18:43,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:18:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36684 states. [2020-11-29 20:18:44,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36684 to 31154. [2020-11-29 20:18:44,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31154 states. [2020-11-29 20:18:44,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31154 states to 31154 states and 33718 transitions. [2020-11-29 20:18:44,199 INFO L78 Accepts]: Start accepts. Automaton has 31154 states and 33718 transitions. Word has length 563 [2020-11-29 20:18:44,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:44,200 INFO L481 AbstractCegarLoop]: Abstraction has 31154 states and 33718 transitions. [2020-11-29 20:18:44,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:18:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 31154 states and 33718 transitions. [2020-11-29 20:18:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-11-29 20:18:44,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:44,218 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, 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, 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, 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 20:18:44,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-29 20:18:44,419 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:44,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1588965480, now seen corresponding path program 1 times [2020-11-29 20:18:44,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:44,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416116707] [2020-11-29 20:18:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 897 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-11-29 20:18:45,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416116707] [2020-11-29 20:18:45,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:45,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:18:45,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885295678] [2020-11-29 20:18:45,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:18:45,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:45,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:18:45,159 INFO L87 Difference]: Start difference. First operand 31154 states and 33718 transitions. Second operand 3 states. [2020-11-29 20:18:47,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:47,375 INFO L93 Difference]: Finished difference Result 59358 states and 64280 transitions. [2020-11-29 20:18:47,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:18:47,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 612 [2020-11-29 20:18:47,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:47,412 INFO L225 Difference]: With dead ends: 59358 [2020-11-29 20:18:47,412 INFO L226 Difference]: Without dead ends: 28024 [2020-11-29 20:18:47,429 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 20:18:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28024 states. [2020-11-29 20:18:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28024 to 22688. [2020-11-29 20:18:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22688 states. [2020-11-29 20:18:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22688 states to 22688 states and 24543 transitions. [2020-11-29 20:18:47,947 INFO L78 Accepts]: Start accepts. Automaton has 22688 states and 24543 transitions. Word has length 612 [2020-11-29 20:18:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:47,947 INFO L481 AbstractCegarLoop]: Abstraction has 22688 states and 24543 transitions. [2020-11-29 20:18:47,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:18:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 22688 states and 24543 transitions. [2020-11-29 20:18:47,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-11-29 20:18:47,968 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:47,969 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, 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, 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, 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 20:18:47,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-29 20:18:47,969 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:47,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:47,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1459129382, now seen corresponding path program 1 times [2020-11-29 20:18:47,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:47,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492965072] [2020-11-29 20:18:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2020-11-29 20:18:48,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492965072] [2020-11-29 20:18:48,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:48,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:18:48,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419330128] [2020-11-29 20:18:48,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:18:48,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:48,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:48,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:18:48,886 INFO L87 Difference]: Start difference. First operand 22688 states and 24543 transitions. Second operand 3 states. [2020-11-29 20:18:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:50,439 INFO L93 Difference]: Finished difference Result 42424 states and 45923 transitions. [2020-11-29 20:18:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:18:50,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 612 [2020-11-29 20:18:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:50,465 INFO L225 Difference]: With dead ends: 42424 [2020-11-29 20:18:50,465 INFO L226 Difference]: Without dead ends: 22318 [2020-11-29 20:18:50,475 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 20:18:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22318 states. [2020-11-29 20:18:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22318 to 22318. [2020-11-29 20:18:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22318 states. [2020-11-29 20:18:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22318 states to 22318 states and 24018 transitions. [2020-11-29 20:18:50,783 INFO L78 Accepts]: Start accepts. Automaton has 22318 states and 24018 transitions. Word has length 612 [2020-11-29 20:18:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:50,784 INFO L481 AbstractCegarLoop]: Abstraction has 22318 states and 24018 transitions. [2020-11-29 20:18:50,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:18:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 22318 states and 24018 transitions. [2020-11-29 20:18:50,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2020-11-29 20:18:50,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:50,802 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:18:50,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-29 20:18:50,802 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:50,803 INFO L82 PathProgramCache]: Analyzing trace with hash 514606222, now seen corresponding path program 1 times [2020-11-29 20:18:50,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:50,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830990143] [2020-11-29 20:18:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2020-11-29 20:18:51,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830990143] [2020-11-29 20:18:51,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:51,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:18:51,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613239096] [2020-11-29 20:18:51,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:18:51,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:51,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:18:51,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:18:51,515 INFO L87 Difference]: Start difference. First operand 22318 states and 24018 transitions. Second operand 4 states. [2020-11-29 20:18:53,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:53,697 INFO L93 Difference]: Finished difference Result 40760 states and 43861 transitions. [2020-11-29 20:18:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:18:53,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 645 [2020-11-29 20:18:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:53,721 INFO L225 Difference]: With dead ends: 40760 [2020-11-29 20:18:53,721 INFO L226 Difference]: Without dead ends: 21024 [2020-11-29 20:18:53,731 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 20:18:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21024 states. [2020-11-29 20:18:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21024 to 20468. [2020-11-29 20:18:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20468 states. [2020-11-29 20:18:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20468 states to 20468 states and 21906 transitions. [2020-11-29 20:18:54,004 INFO L78 Accepts]: Start accepts. Automaton has 20468 states and 21906 transitions. Word has length 645 [2020-11-29 20:18:54,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:54,005 INFO L481 AbstractCegarLoop]: Abstraction has 20468 states and 21906 transitions. [2020-11-29 20:18:54,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:18:54,005 INFO L276 IsEmpty]: Start isEmpty. Operand 20468 states and 21906 transitions. [2020-11-29 20:18:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-11-29 20:18:54,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:18:54,026 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 20:18:54,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-29 20:18:54,027 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:18:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:54,028 INFO L82 PathProgramCache]: Analyzing trace with hash 245544232, now seen corresponding path program 1 times [2020-11-29 20:18:54,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:54,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242540244] [2020-11-29 20:18:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 1162 trivial. 0 not checked. [2020-11-29 20:18:55,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242540244] [2020-11-29 20:18:55,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:55,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:18:55,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334586880] [2020-11-29 20:18:55,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:18:55,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:55,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:18:55,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:18:55,095 INFO L87 Difference]: Start difference. First operand 20468 states and 21906 transitions. Second operand 4 states. [2020-11-29 20:18:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:18:57,669 INFO L93 Difference]: Finished difference Result 23783 states and 25348 transitions. [2020-11-29 20:18:57,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:18:57,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 801 [2020-11-29 20:18:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:18:57,671 INFO L225 Difference]: With dead ends: 23783 [2020-11-29 20:18:57,671 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:18:57,680 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 20:18:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:18:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:18:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:18:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:18:57,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 801 [2020-11-29 20:18:57,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:18:57,681 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:18:57,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:18:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:18:57,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:18:57,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-29 20:18:57,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:19:01,266 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 1046 DAG size of output: 680 [2020-11-29 20:19:04,263 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 1043 DAG size of output: 682 [2020-11-29 20:19:14,482 WARN L193 SmtUtils]: Spent 10.21 s on a formula simplification. DAG size of input: 627 DAG size of output: 129 [2020-11-29 20:19:25,131 WARN L193 SmtUtils]: Spent 10.64 s on a formula simplification. DAG size of input: 630 DAG size of output: 129 [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,136 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,137 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,138 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,138 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,138 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,138 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 20:19:25,138 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 20:19:25,138 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 20:19:25,139 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,139 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 20:19:25,139 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 20:19:25,139 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,139 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,140 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,140 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,140 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,140 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,140 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 20:19:25,140 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 20:19:25,141 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 20:19:25,141 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,141 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,141 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,142 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse29 (+ ~a23~0 43))) (let ((.cse23 (= ~a25~0 13)) (.cse4 (= ~a25~0 12)) (.cse1 (<= 141 ~a29~0)) (.cse22 (< 0 .cse29)) (.cse12 (= ~a4~0 1))) (let ((.cse20 (<= ~a29~0 599998)) (.cse17 (<= 260 ~a29~0)) (.cse9 (<= .cse29 0)) (.cse6 (= ~a25~0 9)) (.cse13 (<= 173 ~a23~0)) (.cse18 (<= (+ ~a23~0 119992) 0)) (.cse10 (<= ~a25~0 10)) (.cse7 (<= ~a29~0 140)) (.cse11 (<= 10 ~a25~0)) (.cse28 (or .cse1 (not (= ULTIMATE.start_calculate_output_~input 4)) .cse22 .cse12)) (.cse8 (not .cse12)) (.cse26 (= ~a25~0 11)) (.cse3 (<= ~a29~0 274)) (.cse27 (<= 256 ~a29~0)) (.cse25 (<= 0 (+ ~a29~0 28553))) (.cse21 (or .cse23 .cse4)) (.cse14 (<= ~a23~0 247)) (.cse16 (<= 141 ~a23~0)) (.cse19 (<= ~a29~0 130)) (.cse24 (<= ~a29~0 275)) (.cse0 (<= ~a4~0 0)) (.cse2 (= ~a8~0 15)) (.cse5 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (<= 0 (+ ~a29~0 554348)) .cse7 .cse2 .cse8 .cse9 .cse5) (and .cse10 .cse11 .cse9 .cse12) (and .cse10 (<= 312 ~a23~0) .cse2 .cse12 .cse5) (and .cse13 .cse14 .cse2 .cse12 .cse5) (and (let ((.cse15 (<= (+ ~a29~0 22) 0))) (or (and .cse10 .cse15 .cse16 .cse12) (and .cse15 .cse4 .cse12))) .cse14 .cse2 .cse5) (and .cse13 .cse11 (<= ~a23~0 312) .cse2 .cse12 .cse5) (and .cse10 .cse17 .cse2 .cse12 .cse18) (and .cse19 .cse4 .cse9 .cse12) (and .cse13 (<= 114806 ~a29~0) .cse2 .cse12 .cse5) (and .cse16 .cse1 .cse2 .cse20 .cse5 .cse12) (and .cse13 .cse21 .cse2 .cse12 .cse5) (and .cse6 .cse7 .cse14 .cse2 .cse8 .cse5 .cse22) (and .cse10 .cse9 (<= 115953 ~a29~0) .cse12) (and (<= 103953 ~a29~0) .cse2 .cse20 .cse5 .cse12) (and .cse23 .cse14 .cse2 .cse8 .cse22 .cse5) (and .cse24 .cse1 .cse2 .cse12 .cse5) (and .cse6 .cse17 .cse2 .cse9 .cse5) (and .cse10 .cse25 .cse7 .cse11 .cse2 .cse5) (and .cse26 .cse7 .cse2 .cse8 .cse9 .cse5) (and .cse6 .cse13 .cse2 .cse12 .cse5) (and .cse26 .cse2 .cse8 .cse5 .cse18 .cse27) (and .cse10 .cse2 .cse12 .cse5 .cse27) (and .cse10 .cse7 .cse14 .cse11 .cse2 .cse5 .cse22) (and .cse0 .cse28 .cse2 .cse4 (<= (+ ~a29~0 580291) 0) .cse5) (and .cse28 .cse14 .cse2 .cse8 .cse4 .cse5) (and .cse26 .cse14 .cse2 .cse3 .cse5 .cse27) (and .cse16 .cse2 .cse4 .cse12 .cse5) (and .cse25 .cse21 .cse14 .cse16 .cse19 .cse2 .cse5) (and .cse24 .cse0 (<= 192 ~a29~0) .cse2 .cse4 .cse5))))) [2020-11-29 20:19:25,143 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,143 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 20:19:25,143 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 20:19:25,143 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,144 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,144 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,144 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,144 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,144 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,145 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 20:19:25,145 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 20:19:25,145 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 20:19:25,145 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 20:19:25,145 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,146 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,146 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,146 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,146 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,146 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,146 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,147 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 20:19:25,147 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 20:19:25,147 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 20:19:25,147 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,147 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,147 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,148 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,148 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,148 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,148 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,148 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,149 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,149 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 20:19:25,149 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 20:19:25,149 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 20:19:25,149 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,150 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse29 (+ ~a23~0 43))) (let ((.cse23 (= ~a25~0 13)) (.cse4 (= ~a25~0 12)) (.cse1 (<= 141 ~a29~0)) (.cse22 (< 0 .cse29)) (.cse12 (= ~a4~0 1))) (let ((.cse20 (<= ~a29~0 599998)) (.cse17 (<= 260 ~a29~0)) (.cse9 (<= .cse29 0)) (.cse6 (= ~a25~0 9)) (.cse13 (<= 173 ~a23~0)) (.cse18 (<= (+ ~a23~0 119992) 0)) (.cse10 (<= ~a25~0 10)) (.cse7 (<= ~a29~0 140)) (.cse11 (<= 10 ~a25~0)) (.cse28 (or .cse1 (not (= ULTIMATE.start_calculate_output_~input 4)) .cse22 .cse12)) (.cse8 (not .cse12)) (.cse26 (= ~a25~0 11)) (.cse3 (<= ~a29~0 274)) (.cse27 (<= 256 ~a29~0)) (.cse25 (<= 0 (+ ~a29~0 28553))) (.cse21 (or .cse23 .cse4)) (.cse14 (<= ~a23~0 247)) (.cse16 (<= 141 ~a23~0)) (.cse19 (<= ~a29~0 130)) (.cse24 (<= ~a29~0 275)) (.cse0 (<= ~a4~0 0)) (.cse2 (= ~a8~0 15)) (.cse5 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (<= 0 (+ ~a29~0 554348)) .cse7 .cse2 .cse8 .cse9 .cse5) (and .cse10 .cse11 .cse9 .cse12) (and .cse10 (<= 312 ~a23~0) .cse2 .cse12 .cse5) (and .cse13 .cse14 .cse2 .cse12 .cse5) (and (let ((.cse15 (<= (+ ~a29~0 22) 0))) (or (and .cse10 .cse15 .cse16 .cse12) (and .cse15 .cse4 .cse12))) .cse14 .cse2 .cse5) (and .cse13 .cse11 (<= ~a23~0 312) .cse2 .cse12 .cse5) (and .cse10 .cse17 .cse2 .cse12 .cse18) (and .cse19 .cse4 .cse9 .cse12) (and .cse13 (<= 114806 ~a29~0) .cse2 .cse12 .cse5) (and .cse16 .cse1 .cse2 .cse20 .cse5 .cse12) (and .cse13 .cse21 .cse2 .cse12 .cse5) (and .cse6 .cse7 .cse14 .cse2 .cse8 .cse5 .cse22) (and .cse10 .cse9 (<= 115953 ~a29~0) .cse12) (and (<= 103953 ~a29~0) .cse2 .cse20 .cse5 .cse12) (and .cse23 .cse14 .cse2 .cse8 .cse22 .cse5) (and .cse24 .cse1 .cse2 .cse12 .cse5) (and .cse6 .cse17 .cse2 .cse9 .cse5) (and .cse10 .cse25 .cse7 .cse11 .cse2 .cse5) (and .cse26 .cse7 .cse2 .cse8 .cse9 .cse5) (and .cse6 .cse13 .cse2 .cse12 .cse5) (and .cse26 .cse2 .cse8 .cse5 .cse18 .cse27) (and .cse10 .cse2 .cse12 .cse5 .cse27) (and .cse10 .cse7 .cse14 .cse11 .cse2 .cse5 .cse22) (and .cse0 .cse28 .cse2 .cse4 (<= (+ ~a29~0 580291) 0) .cse5) (and .cse28 .cse14 .cse2 .cse8 .cse4 .cse5) (and .cse26 .cse14 .cse2 .cse3 .cse5 .cse27) (and .cse16 .cse2 .cse4 .cse12 .cse5) (and .cse25 .cse21 .cse14 .cse16 .cse19 .cse2 .cse5) (and .cse24 .cse0 (<= 192 ~a29~0) .cse2 .cse4 .cse5))))) [2020-11-29 20:19:25,150 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,150 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,151 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,151 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,151 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,151 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,151 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,151 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,152 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 20:19:25,152 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 20:19:25,152 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 20:19:25,152 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 20:19:25,152 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 20:19:25,152 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 20:19:25,153 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 20:19:25,153 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,153 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,153 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,153 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,153 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,154 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,154 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,154 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,154 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,154 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,154 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:19:25,155 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 20:19:25,155 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 20:19:25,155 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 20:19:25,155 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 20:19:25,155 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,155 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,156 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,156 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,156 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,156 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 20:19:25,156 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 20:19:25,156 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 20:19:25,157 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,157 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,157 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,157 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,157 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 20:19:25,157 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 20:19:25,158 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,158 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,158 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,158 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,158 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,158 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 20:19:25,159 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 20:19:25,160 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:19:25,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:19:25,160 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,160 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,160 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 20:19:25,161 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 20:19:25,162 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 20:19:25,162 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 20:19:25,162 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 20:19:25,162 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 20:19:25,162 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,162 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,163 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 20:19:25,163 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 20:19:25,163 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,163 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,163 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,163 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,164 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,165 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,165 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,165 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,165 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 20:19:25,165 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 20:19:25,165 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 20:19:25,166 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,166 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,166 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,166 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,166 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,166 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,167 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,168 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,168 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,168 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,168 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,168 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,168 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:19:25,169 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,169 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,169 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,169 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,169 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 20:19:25,169 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,170 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,171 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,171 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,171 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,171 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 20:19:25,171 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 20:19:25,171 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,172 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,173 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,173 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,173 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,173 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 20:19:25,173 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 20:19:25,173 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,174 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,174 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 20:19:25,174 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 20:19:25,174 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,174 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:19:25,175 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,175 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,175 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,175 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,175 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,175 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,176 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,177 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,177 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,177 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,177 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,177 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 20:19:25,177 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 20:19:25,178 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 20:19:25,178 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 20:19:25,178 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 20:19:25,178 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 20:19:25,178 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,178 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,179 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,179 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,179 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,179 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,179 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,179 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 20:19:25,180 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 20:19:25,180 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:19:25,180 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,180 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,180 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,180 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,181 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,182 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,182 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,182 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,182 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,182 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 20:19:25,182 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:19:25,183 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,183 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,183 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 20:19:25,183 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 20:19:25,183 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 20:19:25,183 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 20:19:25,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:19:25 BoogieIcfgContainer [2020-11-29 20:19:25,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:19:25,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:19:25,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:19:25,243 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:19:25,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:56" (3/4) ... [2020-11-29 20:19:25,248 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:19:25,284 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:19:25,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:19:25,290 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:19:25,293 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:19:25,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4822d9ca-8b02-4d5b-87b7-cf80988121ef/bin/uautomizer/witness.graphml [2020-11-29 20:19:25,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:19:25,553 INFO L168 Benchmark]: Toolchain (without parser) took 153323.05 ms. Allocated memory was 79.7 MB in the beginning and 3.9 GB in the end (delta: 3.8 GB). Free memory was 45.1 MB in the beginning and 3.3 GB in the end (delta: -3.3 GB). Peak memory consumption was 542.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,554 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 79.7 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:19:25,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1177.46 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 41.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 253.69 ms. Allocated memory is still 96.5 MB. Free memory was 41.6 MB in the beginning and 61.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,556 INFO L168 Benchmark]: Boogie Preprocessor took 218.26 ms. Allocated memory is still 96.5 MB. Free memory was 61.4 MB in the beginning and 51.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,556 INFO L168 Benchmark]: RCFGBuilder took 2953.66 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 51.5 MB in the beginning and 56.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,557 INFO L168 Benchmark]: TraceAbstraction took 148399.64 ms. Allocated memory was 132.1 MB in the beginning and 3.9 GB in the end (delta: 3.8 GB). Free memory was 56.8 MB in the beginning and 3.3 GB in the end (delta: -3.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,558 INFO L168 Benchmark]: Witness Printer took 309.75 ms. Allocated memory is still 3.9 GB. Free memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 26.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:25,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 79.7 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1177.46 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 41.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 253.69 ms. Allocated memory is still 96.5 MB. Free memory was 41.6 MB in the beginning and 61.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 218.26 ms. Allocated memory is still 96.5 MB. Free memory was 61.4 MB in the beginning and 51.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2953.66 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 51.5 MB in the beginning and 56.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 148399.64 ms. Allocated memory was 132.1 MB in the beginning and 3.9 GB in the end (delta: 3.8 GB). Free memory was 56.8 MB in the beginning and 3.3 GB in the end (delta: -3.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Witness Printer took 309.75 ms. Allocated memory is still 3.9 GB. Free memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 26.5 MB). Peak memory consumption was 27.3 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: (((((((((((((((((((((((((((((((((a4 <= 0 && 141 <= a29) && a8 == 15) && a29 <= 274) && a25 == 12) && a3 == 1) || ((((((a25 == 9 && 0 <= a29 + 554348) && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a23 + 43 <= 0) && a3 == 1)) || (((a25 <= 10 && 10 <= a25) && a23 + 43 <= 0) && a4 == 1)) || ((((a25 <= 10 && 312 <= a23) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((173 <= a23 && a23 <= 247) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((a25 <= 10 && a29 + 22 <= 0) && 141 <= a23) && a4 == 1) || ((a29 + 22 <= 0 && a25 == 12) && a4 == 1)) && a23 <= 247) && a8 == 15) && a3 == 1)) || (((((173 <= a23 && 10 <= a25) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 <= 10 && 260 <= a29) && a8 == 15) && a4 == 1) && a23 + 119992 <= 0)) || (((a29 <= 130 && a25 == 12) && a23 + 43 <= 0) && a4 == 1)) || ((((173 <= a23 && 114806 <= a29) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((141 <= a23 && 141 <= a29) && a8 == 15) && a29 <= 599998) && a3 == 1) && a4 == 1)) || ((((173 <= a23 && (a25 == 13 || a25 == 12)) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((((a25 == 9 && a29 <= 140) && a23 <= 247) && a8 == 15) && !(a4 == 1)) && a3 == 1) && 0 < a23 + 43)) || (((a25 <= 10 && a23 + 43 <= 0) && 115953 <= a29) && a4 == 1)) || ((((103953 <= a29 && a8 == 15) && a29 <= 599998) && a3 == 1) && a4 == 1)) || (((((a25 == 13 && a23 <= 247) && a8 == 15) && !(a4 == 1)) && 0 < a23 + 43) && a3 == 1)) || ((((a29 <= 275 && 141 <= a29) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 == 9 && 260 <= a29) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 <= 10 && 0 <= a29 + 28553) && a29 <= 140) && 10 <= a25) && a8 == 15) && a3 == 1)) || (((((a25 == 11 && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a23 + 43 <= 0) && a3 == 1)) || ((((a25 == 9 && 173 <= a23) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((a25 == 11 && a8 == 15) && !(a4 == 1)) && a3 == 1) && a23 + 119992 <= 0) && 256 <= a29)) || ((((a25 <= 10 && a8 == 15) && a4 == 1) && a3 == 1) && 256 <= a29)) || ((((((a25 <= 10 && a29 <= 140) && a23 <= 247) && 10 <= a25) && a8 == 15) && a3 == 1) && 0 < a23 + 43)) || (((((a4 <= 0 && (((141 <= a29 || !(input == 4)) || 0 < a23 + 43) || a4 == 1)) && a8 == 15) && a25 == 12) && a29 + 580291 <= 0) && a3 == 1)) || ((((((((141 <= a29 || !(input == 4)) || 0 < a23 + 43) || a4 == 1) && a23 <= 247) && a8 == 15) && !(a4 == 1)) && a25 == 12) && a3 == 1)) || (((((a25 == 11 && a23 <= 247) && a8 == 15) && a29 <= 274) && a3 == 1) && 256 <= a29)) || ((((141 <= a23 && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((0 <= a29 + 28553 && (a25 == 13 || a25 == 12)) && a23 <= 247) && 141 <= a23) && a29 <= 130) && a8 == 15) && a3 == 1)) || (((((a29 <= 275 && a4 <= 0) && 192 <= a29) && a8 == 15) && a25 == 12) && a3 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((a4 <= 0 && 141 <= a29) && a8 == 15) && a29 <= 274) && a25 == 12) && a3 == 1) || ((((((a25 == 9 && 0 <= a29 + 554348) && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a23 + 43 <= 0) && a3 == 1)) || (((a25 <= 10 && 10 <= a25) && a23 + 43 <= 0) && a4 == 1)) || ((((a25 <= 10 && 312 <= a23) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((173 <= a23 && a23 <= 247) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((a25 <= 10 && a29 + 22 <= 0) && 141 <= a23) && a4 == 1) || ((a29 + 22 <= 0 && a25 == 12) && a4 == 1)) && a23 <= 247) && a8 == 15) && a3 == 1)) || (((((173 <= a23 && 10 <= a25) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 <= 10 && 260 <= a29) && a8 == 15) && a4 == 1) && a23 + 119992 <= 0)) || (((a29 <= 130 && a25 == 12) && a23 + 43 <= 0) && a4 == 1)) || ((((173 <= a23 && 114806 <= a29) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((141 <= a23 && 141 <= a29) && a8 == 15) && a29 <= 599998) && a3 == 1) && a4 == 1)) || ((((173 <= a23 && (a25 == 13 || a25 == 12)) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((((a25 == 9 && a29 <= 140) && a23 <= 247) && a8 == 15) && !(a4 == 1)) && a3 == 1) && 0 < a23 + 43)) || (((a25 <= 10 && a23 + 43 <= 0) && 115953 <= a29) && a4 == 1)) || ((((103953 <= a29 && a8 == 15) && a29 <= 599998) && a3 == 1) && a4 == 1)) || (((((a25 == 13 && a23 <= 247) && a8 == 15) && !(a4 == 1)) && 0 < a23 + 43) && a3 == 1)) || ((((a29 <= 275 && 141 <= a29) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 == 9 && 260 <= a29) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 <= 10 && 0 <= a29 + 28553) && a29 <= 140) && 10 <= a25) && a8 == 15) && a3 == 1)) || (((((a25 == 11 && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a23 + 43 <= 0) && a3 == 1)) || ((((a25 == 9 && 173 <= a23) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((a25 == 11 && a8 == 15) && !(a4 == 1)) && a3 == 1) && a23 + 119992 <= 0) && 256 <= a29)) || ((((a25 <= 10 && a8 == 15) && a4 == 1) && a3 == 1) && 256 <= a29)) || ((((((a25 <= 10 && a29 <= 140) && a23 <= 247) && 10 <= a25) && a8 == 15) && a3 == 1) && 0 < a23 + 43)) || (((((a4 <= 0 && (((141 <= a29 || !(input == 4)) || 0 < a23 + 43) || a4 == 1)) && a8 == 15) && a25 == 12) && a29 + 580291 <= 0) && a3 == 1)) || ((((((((141 <= a29 || !(input == 4)) || 0 < a23 + 43) || a4 == 1) && a23 <= 247) && a8 == 15) && !(a4 == 1)) && a25 == 12) && a3 == 1)) || (((((a25 == 11 && a23 <= 247) && a8 == 15) && a29 <= 274) && a3 == 1) && 256 <= a29)) || ((((141 <= a23 && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((0 <= a29 + 28553 && (a25 == 13 || a25 == 12)) && a23 <= 247) && 141 <= a23) && a29 <= 130) && a8 == 15) && a3 == 1)) || (((((a29 <= 275 && a4 <= 0) && 192 <= a29) && a8 == 15) && a25 == 12) && a3 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 120.7s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 84.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 27.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5017 SDtfs, 9534 SDslu, 1009 SDs, 0 SdLazy, 31079 SolverSat, 4968 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3323 GetRequests, 3231 SyntacticMatches, 4 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34106occurred in iteration=26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.6s AutomataMinimizationTime, 32 MinimizatonAttempts, 57767 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 315 NumberOfFragments, 1243 HoareAnnotationTreeSize, 3 FomulaSimplifications, 530349 FormulaSimplificationTreeSizeReduction, 6.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 134427 FormulaSimplificationTreeSizeReductionInter, 20.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 15632 NumberOfCodeBlocks, 15632 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 15593 ConstructedInterpolants, 0 QuantifiedInterpolants, 21872469 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4399 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 39 InterpolantComputations, 29 PerfectInterpolantSequences, 20210/22047 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...