./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label46.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_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label46.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 2291caba928db89f4f7b5c8ea69b5986b62c3d8c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:19:46,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:19:46,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:19:46,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:19:46,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:19:46,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:19:46,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:19:46,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:19:46,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:19:46,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:19:46,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:19:46,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:19:46,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:19:46,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:19:46,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:19:46,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:19:46,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:19:46,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:19:46,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:19:46,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:19:46,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:19:46,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:19:46,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:19:46,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:19:46,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:19:46,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:19:46,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:19:46,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:19:46,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:19:46,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:19:46,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:19:46,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:19:46,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:19:46,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:19:46,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:19:46,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:19:46,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:19:46,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:19:46,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:19:46,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:19:46,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:19:46,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:19:46,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:19:46,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:19:46,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:19:46,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:19:46,795 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:19:46,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:19:46,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:19:46,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:19:46,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:19:46,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:19:46,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:19:46,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:19:46,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:19:46,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:19:46,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:19:46,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:19:46,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:19:46,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:19:46,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:19:46,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:19:46,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:19:46,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:19:46,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:19:46,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:19:46,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:19:46,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:19:46,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:19:46,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:19:46,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:19:46,801 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_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2291caba928db89f4f7b5c8ea69b5986b62c3d8c [2020-11-29 20:19:47,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:19:47,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:19:47,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:19:47,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:19:47,143 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:19:47,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2020-11-29 20:19:47,253 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/data/c4b57aa2a/ed4cec9fe30945989e50eab11795528e/FLAGbce3354bb [2020-11-29 20:19:47,981 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:19:47,982 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2020-11-29 20:19:48,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/data/c4b57aa2a/ed4cec9fe30945989e50eab11795528e/FLAGbce3354bb [2020-11-29 20:19:48,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/data/c4b57aa2a/ed4cec9fe30945989e50eab11795528e [2020-11-29 20:19:48,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:19:48,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:19:48,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:19:48,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:19:48,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:19:48,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:19:48" (1/1) ... [2020-11-29 20:19:48,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207ef1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:48, skipping insertion in model container [2020-11-29 20:19:48,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:19:48" (1/1) ... [2020-11-29 20:19:48,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:19:48,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:19:48,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:19:48,942 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:19:49,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:19:49,161 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:19:49,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49 WrapperNode [2020-11-29 20:19:49,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:19:49,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:19:49,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:19:49,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:19:49,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:19:49,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:19:49,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:19:49,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:19:49,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... [2020-11-29 20:19:49,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:19:49,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:19:49,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:19:49,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:19:49,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:19:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:19:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:19:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:19:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:19:51,860 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:19:51,860 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:19:51,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:19:51 BoogieIcfgContainer [2020-11-29 20:19:51,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:19:51,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:19:51,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:19:51,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:19:51,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:19:48" (1/3) ... [2020-11-29 20:19:51,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480fbb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:19:51, skipping insertion in model container [2020-11-29 20:19:51,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:19:49" (2/3) ... [2020-11-29 20:19:51,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480fbb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:19:51, skipping insertion in model container [2020-11-29 20:19:51,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:19:51" (3/3) ... [2020-11-29 20:19:51,874 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label46.c [2020-11-29 20:19:51,890 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:19:51,895 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:19:51,908 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:19:51,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:19:51,952 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:19:51,953 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:19:51,953 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:19:51,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:19:51,953 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:19:51,954 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:19:51,954 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:19:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 20:19:51,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-29 20:19:51,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:19:51,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:19:51,997 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:19:52,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:52,005 INFO L82 PathProgramCache]: Analyzing trace with hash 531730986, now seen corresponding path program 1 times [2020-11-29 20:19:52,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:52,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556594350] [2020-11-29 20:19:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:52,417 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 20:19:52,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556594350] [2020-11-29 20:19:52,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:19:52,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:19:52,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433488436] [2020-11-29 20:19:52,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:19:52,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:19:52,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:19:52,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:19:52,443 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 20:19:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:19:54,179 INFO L93 Difference]: Finished difference Result 770 states and 1361 transitions. [2020-11-29 20:19:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:19:54,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-11-29 20:19:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:19:54,205 INFO L225 Difference]: With dead ends: 770 [2020-11-29 20:19:54,209 INFO L226 Difference]: Without dead ends: 422 [2020-11-29 20:19:54,218 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 20:19:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-11-29 20:19:54,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2020-11-29 20:19:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-29 20:19:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2020-11-29 20:19:54,287 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 62 [2020-11-29 20:19:54,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:19:54,288 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2020-11-29 20:19:54,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:19:54,288 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2020-11-29 20:19:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-11-29 20:19:54,295 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:19:54,295 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:19:54,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:19:54,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:19:54,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:54,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1907136039, now seen corresponding path program 1 times [2020-11-29 20:19:54,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:54,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919549587] [2020-11-29 20:19:54,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:54,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919549587] [2020-11-29 20:19:54,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:19:54,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:19:54,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734707358] [2020-11-29 20:19:54,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:19:54,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:19:54,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:19:54,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:19:54,531 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand 3 states. [2020-11-29 20:19:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:19:55,850 INFO L93 Difference]: Finished difference Result 1199 states and 1829 transitions. [2020-11-29 20:19:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:19:55,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-11-29 20:19:55,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:19:55,858 INFO L225 Difference]: With dead ends: 1199 [2020-11-29 20:19:55,859 INFO L226 Difference]: Without dead ends: 789 [2020-11-29 20:19:55,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:19:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-11-29 20:19:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2020-11-29 20:19:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-11-29 20:19:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-11-29 20:19:55,926 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 128 [2020-11-29 20:19:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:19:55,927 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-11-29 20:19:55,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:19:55,927 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-11-29 20:19:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-11-29 20:19:55,934 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:19:55,934 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:19:55,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:19:55,935 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:19:55,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:55,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1060108125, now seen corresponding path program 1 times [2020-11-29 20:19:55,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:55,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848151706] [2020-11-29 20:19:55,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:56,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848151706] [2020-11-29 20:19:56,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:19:56,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:19:56,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954146120] [2020-11-29 20:19:56,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:19:56,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:19:56,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:19:56,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:19:56,112 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-11-29 20:19:57,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:19:57,394 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2020-11-29 20:19:57,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:19:57,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-11-29 20:19:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:19:57,406 INFO L225 Difference]: With dead ends: 2314 [2020-11-29 20:19:57,406 INFO L226 Difference]: Without dead ends: 1527 [2020-11-29 20:19:57,408 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 20:19:57,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-11-29 20:19:57,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-11-29 20:19:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-11-29 20:19:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2020-11-29 20:19:57,492 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 132 [2020-11-29 20:19:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:19:57,492 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2020-11-29 20:19:57,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:19:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2020-11-29 20:19:57,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-29 20:19:57,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:19:57,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:19:57,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:19:57,498 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:19:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:57,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1320959583, now seen corresponding path program 1 times [2020-11-29 20:19:57,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:57,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793849170] [2020-11-29 20:19:57,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:57,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793849170] [2020-11-29 20:19:57,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:19:57,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:19:57,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437000017] [2020-11-29 20:19:57,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:19:57,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:19:57,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:19:57,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:19:57,852 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand 4 states. [2020-11-29 20:20:00,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:00,449 INFO L93 Difference]: Finished difference Result 4184 states and 5339 transitions. [2020-11-29 20:20:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:20:00,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2020-11-29 20:20:00,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:00,476 INFO L225 Difference]: With dead ends: 4184 [2020-11-29 20:20:00,477 INFO L226 Difference]: Without dead ends: 2844 [2020-11-29 20:20:00,480 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 20:20:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-11-29 20:20:00,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2843. [2020-11-29 20:20:00,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2843 states. [2020-11-29 20:20:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3569 transitions. [2020-11-29 20:20:00,565 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3569 transitions. Word has length 189 [2020-11-29 20:20:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:00,568 INFO L481 AbstractCegarLoop]: Abstraction has 2843 states and 3569 transitions. [2020-11-29 20:20:00,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:20:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3569 transitions. [2020-11-29 20:20:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-29 20:20:00,578 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:00,578 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:00,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:20:00,579 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:00,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:00,580 INFO L82 PathProgramCache]: Analyzing trace with hash 117122617, now seen corresponding path program 1 times [2020-11-29 20:20:00,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:00,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640699921] [2020-11-29 20:20:00,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 20:20:00,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640699921] [2020-11-29 20:20:00,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:00,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:00,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371466275] [2020-11-29 20:20:00,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:00,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:00,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:00,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:00,927 INFO L87 Difference]: Start difference. First operand 2843 states and 3569 transitions. Second operand 3 states. [2020-11-29 20:20:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:02,519 INFO L93 Difference]: Finished difference Result 5864 states and 7525 transitions. [2020-11-29 20:20:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:02,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-11-29 20:20:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:02,544 INFO L225 Difference]: With dead ends: 5864 [2020-11-29 20:20:02,544 INFO L226 Difference]: Without dead ends: 3580 [2020-11-29 20:20:02,548 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 20:20:02,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2020-11-29 20:20:02,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3580. [2020-11-29 20:20:02,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3580 states. [2020-11-29 20:20:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 4527 transitions. [2020-11-29 20:20:02,652 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 4527 transitions. Word has length 244 [2020-11-29 20:20:02,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:02,653 INFO L481 AbstractCegarLoop]: Abstraction has 3580 states and 4527 transitions. [2020-11-29 20:20:02,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 4527 transitions. [2020-11-29 20:20:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-11-29 20:20:02,660 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:02,661 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:02,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:20:02,661 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:02,662 INFO L82 PathProgramCache]: Analyzing trace with hash 57117662, now seen corresponding path program 1 times [2020-11-29 20:20:02,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:02,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091989941] [2020-11-29 20:20:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-11-29 20:20:03,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091989941] [2020-11-29 20:20:03,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:03,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:03,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692045283] [2020-11-29 20:20:03,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:03,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:03,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:03,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:03,002 INFO L87 Difference]: Start difference. First operand 3580 states and 4527 transitions. Second operand 3 states. [2020-11-29 20:20:04,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:04,453 INFO L93 Difference]: Finished difference Result 8269 states and 10650 transitions. [2020-11-29 20:20:04,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:04,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-11-29 20:20:04,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:04,486 INFO L225 Difference]: With dead ends: 8269 [2020-11-29 20:20:04,486 INFO L226 Difference]: Without dead ends: 4875 [2020-11-29 20:20:04,491 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 20:20:04,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4875 states. [2020-11-29 20:20:04,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4875 to 4867. [2020-11-29 20:20:04,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4867 states. [2020-11-29 20:20:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 6025 transitions. [2020-11-29 20:20:04,622 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 6025 transitions. Word has length 255 [2020-11-29 20:20:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:04,623 INFO L481 AbstractCegarLoop]: Abstraction has 4867 states and 6025 transitions. [2020-11-29 20:20:04,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:04,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 6025 transitions. [2020-11-29 20:20:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-11-29 20:20:04,631 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:04,631 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:04,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:20:04,632 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:04,633 INFO L82 PathProgramCache]: Analyzing trace with hash -261029925, now seen corresponding path program 1 times [2020-11-29 20:20:04,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:04,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704022162] [2020-11-29 20:20:04,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 20:20:04,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704022162] [2020-11-29 20:20:04,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:04,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:04,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059902611] [2020-11-29 20:20:04,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:04,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:04,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:04,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:04,915 INFO L87 Difference]: Start difference. First operand 4867 states and 6025 transitions. Second operand 3 states. [2020-11-29 20:20:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:06,237 INFO L93 Difference]: Finished difference Result 10667 states and 13468 transitions. [2020-11-29 20:20:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:06,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2020-11-29 20:20:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:06,275 INFO L225 Difference]: With dead ends: 10667 [2020-11-29 20:20:06,275 INFO L226 Difference]: Without dead ends: 6170 [2020-11-29 20:20:06,282 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 20:20:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2020-11-29 20:20:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6156. [2020-11-29 20:20:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6156 states. [2020-11-29 20:20:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6156 states to 6156 states and 7512 transitions. [2020-11-29 20:20:06,454 INFO L78 Accepts]: Start accepts. Automaton has 6156 states and 7512 transitions. Word has length 256 [2020-11-29 20:20:06,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:06,455 INFO L481 AbstractCegarLoop]: Abstraction has 6156 states and 7512 transitions. [2020-11-29 20:20:06,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 6156 states and 7512 transitions. [2020-11-29 20:20:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-29 20:20:06,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:06,465 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:20:06,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:20:06,466 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:06,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:06,466 INFO L82 PathProgramCache]: Analyzing trace with hash 964016376, now seen corresponding path program 1 times [2020-11-29 20:20:06,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:06,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943369630] [2020-11-29 20:20:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-11-29 20:20:06,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943369630] [2020-11-29 20:20:06,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:06,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:06,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133439313] [2020-11-29 20:20:06,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:06,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:06,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:06,761 INFO L87 Difference]: Start difference. First operand 6156 states and 7512 transitions. Second operand 3 states. [2020-11-29 20:20:08,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:08,116 INFO L93 Difference]: Finished difference Result 13791 states and 17137 transitions. [2020-11-29 20:20:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:08,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-11-29 20:20:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:08,173 INFO L225 Difference]: With dead ends: 13791 [2020-11-29 20:20:08,173 INFO L226 Difference]: Without dead ends: 8004 [2020-11-29 20:20:08,181 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 20:20:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2020-11-29 20:20:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 7628. [2020-11-29 20:20:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7628 states. [2020-11-29 20:20:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7628 states to 7628 states and 9146 transitions. [2020-11-29 20:20:08,410 INFO L78 Accepts]: Start accepts. Automaton has 7628 states and 9146 transitions. Word has length 293 [2020-11-29 20:20:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:08,411 INFO L481 AbstractCegarLoop]: Abstraction has 7628 states and 9146 transitions. [2020-11-29 20:20:08,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 7628 states and 9146 transitions. [2020-11-29 20:20:08,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-11-29 20:20:08,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:08,425 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:08,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:20:08,426 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:08,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1836050869, now seen corresponding path program 1 times [2020-11-29 20:20:08,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:08,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885421863] [2020-11-29 20:20:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-11-29 20:20:08,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885421863] [2020-11-29 20:20:08,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:08,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:08,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623641041] [2020-11-29 20:20:08,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:08,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:08,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:08,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:08,688 INFO L87 Difference]: Start difference. First operand 7628 states and 9146 transitions. Second operand 3 states. [2020-11-29 20:20:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:09,919 INFO L93 Difference]: Finished difference Result 16722 states and 20234 transitions. [2020-11-29 20:20:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:09,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2020-11-29 20:20:09,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:09,943 INFO L225 Difference]: With dead ends: 16722 [2020-11-29 20:20:09,943 INFO L226 Difference]: Without dead ends: 9464 [2020-11-29 20:20:09,953 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 20:20:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9464 states. [2020-11-29 20:20:10,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9464 to 7802. [2020-11-29 20:20:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7802 states. [2020-11-29 20:20:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7802 states to 7802 states and 9044 transitions. [2020-11-29 20:20:10,113 INFO L78 Accepts]: Start accepts. Automaton has 7802 states and 9044 transitions. Word has length 329 [2020-11-29 20:20:10,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:10,114 INFO L481 AbstractCegarLoop]: Abstraction has 7802 states and 9044 transitions. [2020-11-29 20:20:10,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:10,114 INFO L276 IsEmpty]: Start isEmpty. Operand 7802 states and 9044 transitions. [2020-11-29 20:20:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-11-29 20:20:10,128 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:10,129 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:10,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:20:10,130 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:10,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:10,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2086719269, now seen corresponding path program 1 times [2020-11-29 20:20:10,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:10,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121820443] [2020-11-29 20:20:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:20:10,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121820443] [2020-11-29 20:20:10,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:10,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:10,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102135940] [2020-11-29 20:20:10,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:20:10,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:10,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:20:10,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:20:10,632 INFO L87 Difference]: Start difference. First operand 7802 states and 9044 transitions. Second operand 4 states. [2020-11-29 20:20:13,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:13,014 INFO L93 Difference]: Finished difference Result 20579 states and 23942 transitions. [2020-11-29 20:20:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:20:13,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 344 [2020-11-29 20:20:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:13,051 INFO L225 Difference]: With dead ends: 20579 [2020-11-29 20:20:13,052 INFO L226 Difference]: Without dead ends: 12778 [2020-11-29 20:20:13,063 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 20:20:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12778 states. [2020-11-29 20:20:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12778 to 12773. [2020-11-29 20:20:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12773 states. [2020-11-29 20:20:13,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12773 states to 12773 states and 14764 transitions. [2020-11-29 20:20:13,288 INFO L78 Accepts]: Start accepts. Automaton has 12773 states and 14764 transitions. Word has length 344 [2020-11-29 20:20:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:13,289 INFO L481 AbstractCegarLoop]: Abstraction has 12773 states and 14764 transitions. [2020-11-29 20:20:13,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:20:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 12773 states and 14764 transitions. [2020-11-29 20:20:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-11-29 20:20:13,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:13,368 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:13,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:20:13,369 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:13,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1744682296, now seen corresponding path program 1 times [2020-11-29 20:20:13,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:13,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961925213] [2020-11-29 20:20:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 20:20:13,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961925213] [2020-11-29 20:20:13,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:13,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:13,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360822837] [2020-11-29 20:20:13,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:13,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:13,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:13,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:13,653 INFO L87 Difference]: Start difference. First operand 12773 states and 14764 transitions. Second operand 3 states. [2020-11-29 20:20:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:15,140 INFO L93 Difference]: Finished difference Result 25178 states and 29152 transitions. [2020-11-29 20:20:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:15,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 350 [2020-11-29 20:20:15,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:15,170 INFO L225 Difference]: With dead ends: 25178 [2020-11-29 20:20:15,170 INFO L226 Difference]: Without dead ends: 14067 [2020-11-29 20:20:15,185 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 20:20:15,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14067 states. [2020-11-29 20:20:15,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14067 to 12773. [2020-11-29 20:20:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12773 states. [2020-11-29 20:20:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12773 states to 12773 states and 14764 transitions. [2020-11-29 20:20:15,409 INFO L78 Accepts]: Start accepts. Automaton has 12773 states and 14764 transitions. Word has length 350 [2020-11-29 20:20:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:15,411 INFO L481 AbstractCegarLoop]: Abstraction has 12773 states and 14764 transitions. [2020-11-29 20:20:15,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 12773 states and 14764 transitions. [2020-11-29 20:20:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-11-29 20:20:15,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:15,436 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 20:20:15,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 20:20:15,436 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:15,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:15,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1965399570, now seen corresponding path program 1 times [2020-11-29 20:20:15,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:15,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197364055] [2020-11-29 20:20:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:15,804 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-11-29 20:20:15,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197364055] [2020-11-29 20:20:15,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:15,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:15,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189204080] [2020-11-29 20:20:15,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:15,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:15,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:15,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:15,812 INFO L87 Difference]: Start difference. First operand 12773 states and 14764 transitions. Second operand 3 states. [2020-11-29 20:20:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:17,305 INFO L93 Difference]: Finished difference Result 25549 states and 29691 transitions. [2020-11-29 20:20:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:17,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2020-11-29 20:20:17,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:17,347 INFO L225 Difference]: With dead ends: 25549 [2020-11-29 20:20:17,348 INFO L226 Difference]: Without dead ends: 14438 [2020-11-29 20:20:17,362 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 20:20:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14438 states. [2020-11-29 20:20:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14438 to 14066. [2020-11-29 20:20:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14066 states. [2020-11-29 20:20:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14066 states to 14066 states and 16129 transitions. [2020-11-29 20:20:17,682 INFO L78 Accepts]: Start accepts. Automaton has 14066 states and 16129 transitions. Word has length 373 [2020-11-29 20:20:17,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:17,683 INFO L481 AbstractCegarLoop]: Abstraction has 14066 states and 16129 transitions. [2020-11-29 20:20:17,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14066 states and 16129 transitions. [2020-11-29 20:20:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-11-29 20:20:17,711 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:17,711 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 20:20:17,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 20:20:17,712 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:17,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1040605748, now seen corresponding path program 1 times [2020-11-29 20:20:17,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:17,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597350726] [2020-11-29 20:20:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-11-29 20:20:18,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597350726] [2020-11-29 20:20:18,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:18,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:18,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42598125] [2020-11-29 20:20:18,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:18,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:18,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:18,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:18,049 INFO L87 Difference]: Start difference. First operand 14066 states and 16129 transitions. Second operand 3 states. [2020-11-29 20:20:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:19,407 INFO L93 Difference]: Finished difference Result 29606 states and 34124 transitions. [2020-11-29 20:20:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:19,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 382 [2020-11-29 20:20:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:19,430 INFO L225 Difference]: With dead ends: 29606 [2020-11-29 20:20:19,430 INFO L226 Difference]: Without dead ends: 15909 [2020-11-29 20:20:19,442 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 20:20:19,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15909 states. [2020-11-29 20:20:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15909 to 13328. [2020-11-29 20:20:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13328 states. [2020-11-29 20:20:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13328 states to 13328 states and 15303 transitions. [2020-11-29 20:20:19,687 INFO L78 Accepts]: Start accepts. Automaton has 13328 states and 15303 transitions. Word has length 382 [2020-11-29 20:20:19,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:19,689 INFO L481 AbstractCegarLoop]: Abstraction has 13328 states and 15303 transitions. [2020-11-29 20:20:19,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 13328 states and 15303 transitions. [2020-11-29 20:20:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-11-29 20:20:19,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:19,705 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:19,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 20:20:19,705 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:19,706 INFO L82 PathProgramCache]: Analyzing trace with hash -304792259, now seen corresponding path program 1 times [2020-11-29 20:20:19,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:19,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508488622] [2020-11-29 20:20:19,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 124 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:20:20,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508488622] [2020-11-29 20:20:20,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974046209] [2020-11-29 20:20:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:20:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:20,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 20:20:20,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:20:21,198 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 20:20:21,231 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:21,361 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:21,371 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:21,384 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:21,481 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 20:20:21,518 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:21,530 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:21,535 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 124 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:20:22,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:20:22,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2020-11-29 20:20:22,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64046658] [2020-11-29 20:20:22,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 20:20:22,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:22,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 20:20:22,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:20:22,211 INFO L87 Difference]: Start difference. First operand 13328 states and 15303 transitions. Second operand 9 states. [2020-11-29 20:20:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:30,243 INFO L93 Difference]: Finished difference Result 39000 states and 44771 transitions. [2020-11-29 20:20:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-29 20:20:30,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 382 [2020-11-29 20:20:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:30,292 INFO L225 Difference]: With dead ends: 39000 [2020-11-29 20:20:30,292 INFO L226 Difference]: Without dead ends: 26042 [2020-11-29 20:20:30,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-11-29 20:20:30,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26042 states. [2020-11-29 20:20:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26042 to 20330. [2020-11-29 20:20:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20330 states. [2020-11-29 20:20:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20330 states to 20330 states and 23101 transitions. [2020-11-29 20:20:30,883 INFO L78 Accepts]: Start accepts. Automaton has 20330 states and 23101 transitions. Word has length 382 [2020-11-29 20:20:30,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:30,883 INFO L481 AbstractCegarLoop]: Abstraction has 20330 states and 23101 transitions. [2020-11-29 20:20:30,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 20:20:30,884 INFO L276 IsEmpty]: Start isEmpty. Operand 20330 states and 23101 transitions. [2020-11-29 20:20:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-11-29 20:20:30,908 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:30,909 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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 20:20:31,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 20:20:31,137 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:31,138 INFO L82 PathProgramCache]: Analyzing trace with hash 284281320, now seen corresponding path program 1 times [2020-11-29 20:20:31,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:31,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379344150] [2020-11-29 20:20:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:20:31,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379344150] [2020-11-29 20:20:31,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:31,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:20:31,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050681345] [2020-11-29 20:20:31,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:20:31,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:31,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:20:31,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:20:31,593 INFO L87 Difference]: Start difference. First operand 20330 states and 23101 transitions. Second operand 4 states. [2020-11-29 20:20:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:34,131 INFO L93 Difference]: Finished difference Result 48419 states and 55336 transitions. [2020-11-29 20:20:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:20:34,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 387 [2020-11-29 20:20:34,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:34,169 INFO L225 Difference]: With dead ends: 48419 [2020-11-29 20:20:34,169 INFO L226 Difference]: Without dead ends: 28459 [2020-11-29 20:20:34,185 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 20:20:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28459 states. [2020-11-29 20:20:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28459 to 26421. [2020-11-29 20:20:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26421 states. [2020-11-29 20:20:34,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26421 states to 26421 states and 29873 transitions. [2020-11-29 20:20:34,704 INFO L78 Accepts]: Start accepts. Automaton has 26421 states and 29873 transitions. Word has length 387 [2020-11-29 20:20:34,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:34,704 INFO L481 AbstractCegarLoop]: Abstraction has 26421 states and 29873 transitions. [2020-11-29 20:20:34,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:20:34,705 INFO L276 IsEmpty]: Start isEmpty. Operand 26421 states and 29873 transitions. [2020-11-29 20:20:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-11-29 20:20:34,741 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:34,742 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:34,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 20:20:34,743 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:34,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:34,744 INFO L82 PathProgramCache]: Analyzing trace with hash -76395856, now seen corresponding path program 1 times [2020-11-29 20:20:34,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:34,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900223830] [2020-11-29 20:20:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:35,182 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2020-11-29 20:20:35,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900223830] [2020-11-29 20:20:35,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:35,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:35,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16605901] [2020-11-29 20:20:35,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:35,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:35,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:35,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:35,186 INFO L87 Difference]: Start difference. First operand 26421 states and 29873 transitions. Second operand 3 states. [2020-11-29 20:20:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:36,893 INFO L93 Difference]: Finished difference Result 54864 states and 62150 transitions. [2020-11-29 20:20:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:36,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 442 [2020-11-29 20:20:36,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:36,923 INFO L225 Difference]: With dead ends: 54864 [2020-11-29 20:20:36,923 INFO L226 Difference]: Without dead ends: 28813 [2020-11-29 20:20:36,939 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 20:20:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28813 states. [2020-11-29 20:20:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28813 to 17942. [2020-11-29 20:20:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17942 states. [2020-11-29 20:20:37,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17942 states to 17942 states and 20329 transitions. [2020-11-29 20:20:37,359 INFO L78 Accepts]: Start accepts. Automaton has 17942 states and 20329 transitions. Word has length 442 [2020-11-29 20:20:37,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:37,360 INFO L481 AbstractCegarLoop]: Abstraction has 17942 states and 20329 transitions. [2020-11-29 20:20:37,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:37,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17942 states and 20329 transitions. [2020-11-29 20:20:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-11-29 20:20:37,477 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:37,477 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:37,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 20:20:37,478 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:37,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1966943107, now seen corresponding path program 1 times [2020-11-29 20:20:37,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:37,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959104603] [2020-11-29 20:20:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-11-29 20:20:38,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959104603] [2020-11-29 20:20:38,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:38,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:38,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914372852] [2020-11-29 20:20:38,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:38,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:38,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:38,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:38,004 INFO L87 Difference]: Start difference. First operand 17942 states and 20329 transitions. Second operand 3 states. [2020-11-29 20:20:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:39,473 INFO L93 Difference]: Finished difference Result 38457 states and 43467 transitions. [2020-11-29 20:20:39,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:39,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 526 [2020-11-29 20:20:39,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:39,500 INFO L225 Difference]: With dead ends: 38457 [2020-11-29 20:20:39,500 INFO L226 Difference]: Without dead ends: 20885 [2020-11-29 20:20:39,512 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 20:20:39,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20885 states. [2020-11-29 20:20:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20885 to 20326. [2020-11-29 20:20:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20326 states. [2020-11-29 20:20:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20326 states to 20326 states and 22775 transitions. [2020-11-29 20:20:40,037 INFO L78 Accepts]: Start accepts. Automaton has 20326 states and 22775 transitions. Word has length 526 [2020-11-29 20:20:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:40,038 INFO L481 AbstractCegarLoop]: Abstraction has 20326 states and 22775 transitions. [2020-11-29 20:20:40,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:40,038 INFO L276 IsEmpty]: Start isEmpty. Operand 20326 states and 22775 transitions. [2020-11-29 20:20:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-11-29 20:20:40,059 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:40,060 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:40,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 20:20:40,061 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1983525633, now seen corresponding path program 1 times [2020-11-29 20:20:40,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:40,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750349147] [2020-11-29 20:20:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 20:20:40,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750349147] [2020-11-29 20:20:40,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:40,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:40,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250049844] [2020-11-29 20:20:40,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:40,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:40,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:40,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:40,538 INFO L87 Difference]: Start difference. First operand 20326 states and 22775 transitions. Second operand 3 states. [2020-11-29 20:20:41,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:41,681 INFO L93 Difference]: Finished difference Result 42512 states and 47656 transitions. [2020-11-29 20:20:41,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:41,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 531 [2020-11-29 20:20:41,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:41,705 INFO L225 Difference]: With dead ends: 42512 [2020-11-29 20:20:41,706 INFO L226 Difference]: Without dead ends: 22188 [2020-11-29 20:20:41,716 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 20:20:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2020-11-29 20:20:42,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 21056. [2020-11-29 20:20:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21056 states. [2020-11-29 20:20:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21056 states to 21056 states and 23385 transitions. [2020-11-29 20:20:42,051 INFO L78 Accepts]: Start accepts. Automaton has 21056 states and 23385 transitions. Word has length 531 [2020-11-29 20:20:42,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:42,051 INFO L481 AbstractCegarLoop]: Abstraction has 21056 states and 23385 transitions. [2020-11-29 20:20:42,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:42,052 INFO L276 IsEmpty]: Start isEmpty. Operand 21056 states and 23385 transitions. [2020-11-29 20:20:42,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-11-29 20:20:42,069 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:42,069 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:42,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 20:20:42,070 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:42,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:42,070 INFO L82 PathProgramCache]: Analyzing trace with hash 297191834, now seen corresponding path program 1 times [2020-11-29 20:20:42,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:42,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251949373] [2020-11-29 20:20:42,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 320 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-11-29 20:20:42,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251949373] [2020-11-29 20:20:42,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731420612] [2020-11-29 20:20:42,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:20:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:42,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:20:42,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:20:42,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:20:42,948 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:20:42,973 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:20:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 716 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-29 20:20:45,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:20:45,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 20:20:45,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314104697] [2020-11-29 20:20:45,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:20:45,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:45,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:20:45,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:20:45,760 INFO L87 Difference]: Start difference. First operand 21056 states and 23385 transitions. Second operand 4 states. [2020-11-29 20:20:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:48,543 INFO L93 Difference]: Finished difference Result 48573 states and 54022 transitions. [2020-11-29 20:20:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:20:48,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 532 [2020-11-29 20:20:48,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:48,570 INFO L225 Difference]: With dead ends: 48573 [2020-11-29 20:20:48,570 INFO L226 Difference]: Without dead ends: 26599 [2020-11-29 20:20:48,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:20:48,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26599 states. [2020-11-29 20:20:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26599 to 20510. [2020-11-29 20:20:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20510 states. [2020-11-29 20:20:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20510 states to 20510 states and 22844 transitions. [2020-11-29 20:20:48,874 INFO L78 Accepts]: Start accepts. Automaton has 20510 states and 22844 transitions. Word has length 532 [2020-11-29 20:20:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:48,875 INFO L481 AbstractCegarLoop]: Abstraction has 20510 states and 22844 transitions. [2020-11-29 20:20:48,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:20:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 20510 states and 22844 transitions. [2020-11-29 20:20:48,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2020-11-29 20:20:48,896 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:48,897 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:20:49,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:20:49,125 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:49,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:49,126 INFO L82 PathProgramCache]: Analyzing trace with hash 652257370, now seen corresponding path program 1 times [2020-11-29 20:20:49,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:49,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758037521] [2020-11-29 20:20:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 831 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-29 20:20:49,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758037521] [2020-11-29 20:20:49,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:49,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:20:49,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812729507] [2020-11-29 20:20:49,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:20:49,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:49,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:20:49,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:20:49,742 INFO L87 Difference]: Start difference. First operand 20510 states and 22844 transitions. Second operand 4 states. [2020-11-29 20:20:51,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:51,969 INFO L93 Difference]: Finished difference Result 43968 states and 48858 transitions. [2020-11-29 20:20:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:20:51,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 580 [2020-11-29 20:20:51,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:51,994 INFO L225 Difference]: With dead ends: 43968 [2020-11-29 20:20:51,994 INFO L226 Difference]: Without dead ends: 23828 [2020-11-29 20:20:52,004 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 20:20:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23828 states. [2020-11-29 20:20:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23828 to 21245. [2020-11-29 20:20:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21245 states. [2020-11-29 20:20:52,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21245 states to 21245 states and 23397 transitions. [2020-11-29 20:20:52,280 INFO L78 Accepts]: Start accepts. Automaton has 21245 states and 23397 transitions. Word has length 580 [2020-11-29 20:20:52,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:52,281 INFO L481 AbstractCegarLoop]: Abstraction has 21245 states and 23397 transitions. [2020-11-29 20:20:52,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:20:52,281 INFO L276 IsEmpty]: Start isEmpty. Operand 21245 states and 23397 transitions. [2020-11-29 20:20:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2020-11-29 20:20:52,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:52,296 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, 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, 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, 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 20:20:52,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 20:20:52,297 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:52,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:52,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1113055461, now seen corresponding path program 1 times [2020-11-29 20:20:52,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:52,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341083363] [2020-11-29 20:20:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 940 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2020-11-29 20:20:52,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341083363] [2020-11-29 20:20:52,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:52,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:52,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559488887] [2020-11-29 20:20:52,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:52,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:52,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:52,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:52,784 INFO L87 Difference]: Start difference. First operand 21245 states and 23397 transitions. Second operand 3 states. [2020-11-29 20:20:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:54,202 INFO L93 Difference]: Finished difference Result 43970 states and 48405 transitions. [2020-11-29 20:20:54,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:54,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 628 [2020-11-29 20:20:54,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:54,224 INFO L225 Difference]: With dead ends: 43970 [2020-11-29 20:20:54,224 INFO L226 Difference]: Without dead ends: 23095 [2020-11-29 20:20:54,233 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 20:20:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23095 states. [2020-11-29 20:20:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23095 to 19950. [2020-11-29 20:20:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19950 states. [2020-11-29 20:20:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19950 states to 19950 states and 21940 transitions. [2020-11-29 20:20:54,491 INFO L78 Accepts]: Start accepts. Automaton has 19950 states and 21940 transitions. Word has length 628 [2020-11-29 20:20:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:54,491 INFO L481 AbstractCegarLoop]: Abstraction has 19950 states and 21940 transitions. [2020-11-29 20:20:54,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 19950 states and 21940 transitions. [2020-11-29 20:20:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2020-11-29 20:20:54,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:54,506 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:54,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 20:20:54,507 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:54,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:54,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1914203690, now seen corresponding path program 1 times [2020-11-29 20:20:54,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:54,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990628885] [2020-11-29 20:20:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2020-11-29 20:20:55,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990628885] [2020-11-29 20:20:55,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:55,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:55,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202693758] [2020-11-29 20:20:55,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:55,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:55,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:55,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:55,116 INFO L87 Difference]: Start difference. First operand 19950 states and 21940 transitions. Second operand 3 states. [2020-11-29 20:20:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:56,407 INFO L93 Difference]: Finished difference Result 41184 states and 45220 transitions. [2020-11-29 20:20:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:56,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 649 [2020-11-29 20:20:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:56,434 INFO L225 Difference]: With dead ends: 41184 [2020-11-29 20:20:56,434 INFO L226 Difference]: Without dead ends: 21604 [2020-11-29 20:20:56,445 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 20:20:56,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21604 states. [2020-11-29 20:20:56,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21604 to 19763. [2020-11-29 20:20:56,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19763 states. [2020-11-29 20:20:56,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19763 states to 19763 states and 21619 transitions. [2020-11-29 20:20:56,707 INFO L78 Accepts]: Start accepts. Automaton has 19763 states and 21619 transitions. Word has length 649 [2020-11-29 20:20:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:56,707 INFO L481 AbstractCegarLoop]: Abstraction has 19763 states and 21619 transitions. [2020-11-29 20:20:56,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 19763 states and 21619 transitions. [2020-11-29 20:20:56,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2020-11-29 20:20:56,723 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:56,723 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, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:56,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 20:20:56,724 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:56,724 INFO L82 PathProgramCache]: Analyzing trace with hash 988320550, now seen corresponding path program 1 times [2020-11-29 20:20:56,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:56,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063004542] [2020-11-29 20:20:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 747 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-11-29 20:20:57,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063004542] [2020-11-29 20:20:57,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:57,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:57,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793199961] [2020-11-29 20:20:57,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:57,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:57,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:57,590 INFO L87 Difference]: Start difference. First operand 19763 states and 21619 transitions. Second operand 3 states. [2020-11-29 20:20:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:20:59,067 INFO L93 Difference]: Finished difference Result 40444 states and 44258 transitions. [2020-11-29 20:20:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:20:59,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 662 [2020-11-29 20:20:59,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:20:59,088 INFO L225 Difference]: With dead ends: 40444 [2020-11-29 20:20:59,088 INFO L226 Difference]: Without dead ends: 21051 [2020-11-29 20:20:59,099 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 20:20:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21051 states. [2020-11-29 20:20:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21051 to 18283. [2020-11-29 20:20:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18283 states. [2020-11-29 20:20:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18283 states to 18283 states and 19970 transitions. [2020-11-29 20:20:59,350 INFO L78 Accepts]: Start accepts. Automaton has 18283 states and 19970 transitions. Word has length 662 [2020-11-29 20:20:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:20:59,350 INFO L481 AbstractCegarLoop]: Abstraction has 18283 states and 19970 transitions. [2020-11-29 20:20:59,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:20:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand 18283 states and 19970 transitions. [2020-11-29 20:20:59,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-11-29 20:20:59,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:20:59,369 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:20:59,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 20:20:59,370 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:20:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:20:59,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1903953828, now seen corresponding path program 1 times [2020-11-29 20:20:59,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:20:59,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492322281] [2020-11-29 20:20:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:20:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:20:59,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2020-11-29 20:20:59,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492322281] [2020-11-29 20:20:59,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:20:59,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:20:59,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276364104] [2020-11-29 20:20:59,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:20:59,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:20:59,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:20:59,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:20:59,869 INFO L87 Difference]: Start difference. First operand 18283 states and 19970 transitions. Second operand 3 states. [2020-11-29 20:21:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:01,189 INFO L93 Difference]: Finished difference Result 37299 states and 40717 transitions. [2020-11-29 20:21:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:01,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 682 [2020-11-29 20:21:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:01,204 INFO L225 Difference]: With dead ends: 37299 [2020-11-29 20:21:01,204 INFO L226 Difference]: Without dead ends: 19386 [2020-11-29 20:21:01,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2020-11-29 20:21:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 17727. [2020-11-29 20:21:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17727 states. [2020-11-29 20:21:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17727 states to 17727 states and 19280 transitions. [2020-11-29 20:21:01,424 INFO L78 Accepts]: Start accepts. Automaton has 17727 states and 19280 transitions. Word has length 682 [2020-11-29 20:21:01,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:01,424 INFO L481 AbstractCegarLoop]: Abstraction has 17727 states and 19280 transitions. [2020-11-29 20:21:01,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 17727 states and 19280 transitions. [2020-11-29 20:21:01,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2020-11-29 20:21:01,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:01,440 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, 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, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:01,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 20:21:01,441 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:01,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:01,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2087715072, now seen corresponding path program 1 times [2020-11-29 20:21:01,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:01,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189988015] [2020-11-29 20:21:01,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-11-29 20:21:02,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189988015] [2020-11-29 20:21:02,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:02,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:21:02,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922100824] [2020-11-29 20:21:02,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:21:02,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:02,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:21:02,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:21:02,969 INFO L87 Difference]: Start difference. First operand 17727 states and 19280 transitions. Second operand 6 states. [2020-11-29 20:21:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:05,697 INFO L93 Difference]: Finished difference Result 42448 states and 46103 transitions. [2020-11-29 20:21:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 20:21:05,698 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 683 [2020-11-29 20:21:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:05,720 INFO L225 Difference]: With dead ends: 42448 [2020-11-29 20:21:05,720 INFO L226 Difference]: Without dead ends: 25091 [2020-11-29 20:21:05,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:21:05,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25091 states. [2020-11-29 20:21:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25091 to 24723. [2020-11-29 20:21:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24723 states. [2020-11-29 20:21:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24723 states to 24723 states and 26826 transitions. [2020-11-29 20:21:06,025 INFO L78 Accepts]: Start accepts. Automaton has 24723 states and 26826 transitions. Word has length 683 [2020-11-29 20:21:06,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:06,026 INFO L481 AbstractCegarLoop]: Abstraction has 24723 states and 26826 transitions. [2020-11-29 20:21:06,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:21:06,026 INFO L276 IsEmpty]: Start isEmpty. Operand 24723 states and 26826 transitions. [2020-11-29 20:21:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2020-11-29 20:21:06,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:06,044 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:06,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-29 20:21:06,044 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:06,045 INFO L82 PathProgramCache]: Analyzing trace with hash 289999705, now seen corresponding path program 1 times [2020-11-29 20:21:06,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:06,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805277062] [2020-11-29 20:21:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 901 proven. 8 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-11-29 20:21:07,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805277062] [2020-11-29 20:21:07,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660828472] [2020-11-29 20:21:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:21:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:07,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:21:07,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:07,937 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:07,949 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:07,966 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 788 proven. 121 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-11-29 20:21:08,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:21:08,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2020-11-29 20:21:08,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866888715] [2020-11-29 20:21:08,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 20:21:08,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:08,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 20:21:08,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:21:08,622 INFO L87 Difference]: Start difference. First operand 24723 states and 26826 transitions. Second operand 9 states. [2020-11-29 20:21:14,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:14,334 INFO L93 Difference]: Finished difference Result 52999 states and 57486 transitions. [2020-11-29 20:21:14,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-29 20:21:14,336 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 693 [2020-11-29 20:21:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:14,365 INFO L225 Difference]: With dead ends: 52999 [2020-11-29 20:21:14,365 INFO L226 Difference]: Without dead ends: 30856 [2020-11-29 20:21:14,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 691 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-11-29 20:21:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30856 states. [2020-11-29 20:21:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30856 to 24539. [2020-11-29 20:21:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24539 states. [2020-11-29 20:21:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24539 states to 24539 states and 26585 transitions. [2020-11-29 20:21:14,726 INFO L78 Accepts]: Start accepts. Automaton has 24539 states and 26585 transitions. Word has length 693 [2020-11-29 20:21:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:14,726 INFO L481 AbstractCegarLoop]: Abstraction has 24539 states and 26585 transitions. [2020-11-29 20:21:14,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 20:21:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand 24539 states and 26585 transitions. [2020-11-29 20:21:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2020-11-29 20:21:14,744 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:14,745 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:14,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-29 20:21:14,949 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:14,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1451888965, now seen corresponding path program 1 times [2020-11-29 20:21:14,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:14,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299596939] [2020-11-29 20:21:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 978 proven. 213 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-11-29 20:21:15,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299596939] [2020-11-29 20:21:15,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185972382] [2020-11-29 20:21:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:21:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:16,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:21:16,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 918 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-11-29 20:21:16,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:21:16,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 20:21:16,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112792498] [2020-11-29 20:21:16,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:16,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:16,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:16,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:21:16,683 INFO L87 Difference]: Start difference. First operand 24539 states and 26585 transitions. Second operand 3 states. [2020-11-29 20:21:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:18,170 INFO L93 Difference]: Finished difference Result 47434 states and 51438 transitions. [2020-11-29 20:21:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:18,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 698 [2020-11-29 20:21:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:18,196 INFO L225 Difference]: With dead ends: 47434 [2020-11-29 20:21:18,196 INFO L226 Difference]: Without dead ends: 25843 [2020-11-29 20:21:18,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:21:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25843 states. [2020-11-29 20:21:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25843 to 25653. [2020-11-29 20:21:18,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25653 states. [2020-11-29 20:21:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25653 states to 25653 states and 27701 transitions. [2020-11-29 20:21:18,741 INFO L78 Accepts]: Start accepts. Automaton has 25653 states and 27701 transitions. Word has length 698 [2020-11-29 20:21:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:18,741 INFO L481 AbstractCegarLoop]: Abstraction has 25653 states and 27701 transitions. [2020-11-29 20:21:18,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 25653 states and 27701 transitions. [2020-11-29 20:21:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2020-11-29 20:21:18,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:18,772 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, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:18,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:21:18,985 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:18,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:18,986 INFO L82 PathProgramCache]: Analyzing trace with hash 730834839, now seen corresponding path program 1 times [2020-11-29 20:21:18,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:18,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542399204] [2020-11-29 20:21:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 1102 proven. 64 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2020-11-29 20:21:20,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542399204] [2020-11-29 20:21:20,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347911131] [2020-11-29 20:21:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:21:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:20,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:21:20,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 1166 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2020-11-29 20:21:20,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:21:20,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:21:20,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452436094] [2020-11-29 20:21:20,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:20,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:20,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:20,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:21:20,965 INFO L87 Difference]: Start difference. First operand 25653 states and 27701 transitions. Second operand 3 states. [2020-11-29 20:21:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:22,526 INFO L93 Difference]: Finished difference Result 50391 states and 54413 transitions. [2020-11-29 20:21:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:22,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 708 [2020-11-29 20:21:22,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:22,553 INFO L225 Difference]: With dead ends: 50391 [2020-11-29 20:21:22,553 INFO L226 Difference]: Without dead ends: 27502 [2020-11-29 20:21:22,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:21:22,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27502 states. [2020-11-29 20:21:22,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27502 to 25101. [2020-11-29 20:21:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25101 states. [2020-11-29 20:21:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25101 states to 25101 states and 27083 transitions. [2020-11-29 20:21:22,915 INFO L78 Accepts]: Start accepts. Automaton has 25101 states and 27083 transitions. Word has length 708 [2020-11-29 20:21:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:22,916 INFO L481 AbstractCegarLoop]: Abstraction has 25101 states and 27083 transitions. [2020-11-29 20:21:22,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 25101 states and 27083 transitions. [2020-11-29 20:21:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2020-11-29 20:21:22,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:22,936 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:23,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-29 20:21:23,139 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:23,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1345111814, now seen corresponding path program 1 times [2020-11-29 20:21:23,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:23,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896032811] [2020-11-29 20:21:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 1145 proven. 294 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2020-11-29 20:21:24,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896032811] [2020-11-29 20:21:24,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910302078] [2020-11-29 20:21:24,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:21:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:25,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:21:25,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 1259 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2020-11-29 20:21:25,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:21:25,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-11-29 20:21:25,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902170508] [2020-11-29 20:21:25,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:25,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:25,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:25,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:21:25,796 INFO L87 Difference]: Start difference. First operand 25101 states and 27083 transitions. Second operand 4 states. [2020-11-29 20:21:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:27,584 INFO L93 Difference]: Finished difference Result 47439 states and 51195 transitions. [2020-11-29 20:21:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:27,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 763 [2020-11-29 20:21:27,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:27,609 INFO L225 Difference]: With dead ends: 47439 [2020-11-29 20:21:27,609 INFO L226 Difference]: Without dead ends: 24732 [2020-11-29 20:21:27,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 769 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:21:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24732 states. [2020-11-29 20:21:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24732 to 18839. [2020-11-29 20:21:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18839 states. [2020-11-29 20:21:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18839 states to 18839 states and 20116 transitions. [2020-11-29 20:21:27,911 INFO L78 Accepts]: Start accepts. Automaton has 18839 states and 20116 transitions. Word has length 763 [2020-11-29 20:21:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:27,912 INFO L481 AbstractCegarLoop]: Abstraction has 18839 states and 20116 transitions. [2020-11-29 20:21:27,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 18839 states and 20116 transitions. [2020-11-29 20:21:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2020-11-29 20:21:27,928 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:27,929 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:28,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-11-29 20:21:28,129 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:28,130 INFO L82 PathProgramCache]: Analyzing trace with hash -679980119, now seen corresponding path program 1 times [2020-11-29 20:21:28,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:28,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084319408] [2020-11-29 20:21:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1376 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2020-11-29 20:21:28,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084319408] [2020-11-29 20:21:28,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:28,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:28,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261553488] [2020-11-29 20:21:28,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:28,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:28,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:28,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:28,767 INFO L87 Difference]: Start difference. First operand 18839 states and 20116 transitions. Second operand 3 states. [2020-11-29 20:21:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:30,130 INFO L93 Difference]: Finished difference Result 36933 states and 39467 transitions. [2020-11-29 20:21:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:30,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 771 [2020-11-29 20:21:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:30,148 INFO L225 Difference]: With dead ends: 36933 [2020-11-29 20:21:30,148 INFO L226 Difference]: Without dead ends: 18464 [2020-11-29 20:21:30,156 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 20:21:30,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18464 states. [2020-11-29 20:21:30,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18464 to 17912. [2020-11-29 20:21:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17912 states. [2020-11-29 20:21:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17912 states to 17912 states and 19016 transitions. [2020-11-29 20:21:30,511 INFO L78 Accepts]: Start accepts. Automaton has 17912 states and 19016 transitions. Word has length 771 [2020-11-29 20:21:30,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:30,512 INFO L481 AbstractCegarLoop]: Abstraction has 17912 states and 19016 transitions. [2020-11-29 20:21:30,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 17912 states and 19016 transitions. [2020-11-29 20:21:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2020-11-29 20:21:30,535 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:30,535 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, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:30,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-29 20:21:30,536 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:30,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:30,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1432450941, now seen corresponding path program 1 times [2020-11-29 20:21:30,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:30,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687440399] [2020-11-29 20:21:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1782 backedges. 925 proven. 0 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2020-11-29 20:21:31,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687440399] [2020-11-29 20:21:31,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:31,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:31,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854941695] [2020-11-29 20:21:31,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:31,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:31,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:31,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:31,341 INFO L87 Difference]: Start difference. First operand 17912 states and 19016 transitions. Second operand 3 states. [2020-11-29 20:21:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:32,128 INFO L93 Difference]: Finished difference Result 33237 states and 35299 transitions. [2020-11-29 20:21:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:32,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 774 [2020-11-29 20:21:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:32,148 INFO L225 Difference]: With dead ends: 33237 [2020-11-29 20:21:32,149 INFO L226 Difference]: Without dead ends: 17721 [2020-11-29 20:21:32,156 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 20:21:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17721 states. [2020-11-29 20:21:32,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17721 to 17718. [2020-11-29 20:21:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17718 states. [2020-11-29 20:21:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17718 states to 17718 states and 18805 transitions. [2020-11-29 20:21:32,388 INFO L78 Accepts]: Start accepts. Automaton has 17718 states and 18805 transitions. Word has length 774 [2020-11-29 20:21:32,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:32,389 INFO L481 AbstractCegarLoop]: Abstraction has 17718 states and 18805 transitions. [2020-11-29 20:21:32,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 17718 states and 18805 transitions. [2020-11-29 20:21:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-11-29 20:21:32,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:32,405 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:32,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-29 20:21:32,405 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:32,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1385511433, now seen corresponding path program 1 times [2020-11-29 20:21:32,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:32,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650028309] [2020-11-29 20:21:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 1223 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2020-11-29 20:21:33,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650028309] [2020-11-29 20:21:33,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:33,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:21:33,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986229070] [2020-11-29 20:21:33,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:33,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:33,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:33,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:33,330 INFO L87 Difference]: Start difference. First operand 17718 states and 18805 transitions. Second operand 4 states. [2020-11-29 20:21:38,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:38,040 INFO L93 Difference]: Finished difference Result 38571 states and 40980 transitions. [2020-11-29 20:21:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:38,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 790 [2020-11-29 20:21:38,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:38,069 INFO L225 Difference]: With dead ends: 38571 [2020-11-29 20:21:38,069 INFO L226 Difference]: Without dead ends: 21223 [2020-11-29 20:21:38,082 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 20:21:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21223 states. [2020-11-29 20:21:38,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21223 to 19561. [2020-11-29 20:21:38,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19561 states. [2020-11-29 20:21:38,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19561 states to 19561 states and 20690 transitions. [2020-11-29 20:21:38,388 INFO L78 Accepts]: Start accepts. Automaton has 19561 states and 20690 transitions. Word has length 790 [2020-11-29 20:21:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:38,389 INFO L481 AbstractCegarLoop]: Abstraction has 19561 states and 20690 transitions. [2020-11-29 20:21:38,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:38,389 INFO L276 IsEmpty]: Start isEmpty. Operand 19561 states and 20690 transitions. [2020-11-29 20:21:38,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2020-11-29 20:21:38,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:38,407 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2020-11-29 20:21:38,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-29 20:21:38,408 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:38,409 INFO L82 PathProgramCache]: Analyzing trace with hash -2145423597, now seen corresponding path program 1 times [2020-11-29 20:21:38,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:38,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036447514] [2020-11-29 20:21:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 1145 proven. 0 refuted. 0 times theorem prover too weak. 1116 trivial. 0 not checked. [2020-11-29 20:21:39,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036447514] [2020-11-29 20:21:39,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:39,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:39,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111783406] [2020-11-29 20:21:39,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:39,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:39,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:39,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:39,236 INFO L87 Difference]: Start difference. First operand 19561 states and 20690 transitions. Second operand 3 states. [2020-11-29 20:21:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:40,238 INFO L93 Difference]: Finished difference Result 37647 states and 39853 transitions. [2020-11-29 20:21:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:40,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 901 [2020-11-29 20:21:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:40,256 INFO L225 Difference]: With dead ends: 37647 [2020-11-29 20:21:40,256 INFO L226 Difference]: Without dead ends: 19560 [2020-11-29 20:21:40,264 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 20:21:40,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19560 states. [2020-11-29 20:21:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19560 to 19560. [2020-11-29 20:21:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19560 states. [2020-11-29 20:21:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 20687 transitions. [2020-11-29 20:21:40,527 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 20687 transitions. Word has length 901 [2020-11-29 20:21:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:40,527 INFO L481 AbstractCegarLoop]: Abstraction has 19560 states and 20687 transitions. [2020-11-29 20:21:40,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:40,528 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 20687 transitions. [2020-11-29 20:21:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2020-11-29 20:21:40,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:40,546 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:40,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-29 20:21:40,546 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:40,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:40,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1565720215, now seen corresponding path program 1 times [2020-11-29 20:21:40,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:40,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008985352] [2020-11-29 20:21:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 1609 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2020-11-29 20:21:41,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008985352] [2020-11-29 20:21:41,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:41,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:41,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074769596] [2020-11-29 20:21:41,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:41,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:41,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:41,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:41,495 INFO L87 Difference]: Start difference. First operand 19560 states and 20687 transitions. Second operand 3 states. [2020-11-29 20:21:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:43,275 INFO L93 Difference]: Finished difference Result 38934 states and 41227 transitions. [2020-11-29 20:21:43,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:43,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 917 [2020-11-29 20:21:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:43,292 INFO L225 Difference]: With dead ends: 38934 [2020-11-29 20:21:43,292 INFO L226 Difference]: Without dead ends: 20848 [2020-11-29 20:21:43,297 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 20:21:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20848 states. [2020-11-29 20:21:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20848 to 18637. [2020-11-29 20:21:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18637 states. [2020-11-29 20:21:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18637 states to 18637 states and 19727 transitions. [2020-11-29 20:21:43,552 INFO L78 Accepts]: Start accepts. Automaton has 18637 states and 19727 transitions. Word has length 917 [2020-11-29 20:21:43,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:43,553 INFO L481 AbstractCegarLoop]: Abstraction has 18637 states and 19727 transitions. [2020-11-29 20:21:43,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:43,553 INFO L276 IsEmpty]: Start isEmpty. Operand 18637 states and 19727 transitions. [2020-11-29 20:21:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2020-11-29 20:21:43,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:43,572 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-11-29 20:21:43,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-29 20:21:43,572 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:43,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:43,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2128879235, now seen corresponding path program 1 times [2020-11-29 20:21:43,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:43,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107724800] [2020-11-29 20:21:43,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1689 proven. 0 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2020-11-29 20:21:44,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107724800] [2020-11-29 20:21:44,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:44,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:44,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534665156] [2020-11-29 20:21:44,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:44,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:44,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:44,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:44,405 INFO L87 Difference]: Start difference. First operand 18637 states and 19727 transitions. Second operand 3 states. [2020-11-29 20:21:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:45,918 INFO L93 Difference]: Finished difference Result 35425 states and 37461 transitions. [2020-11-29 20:21:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:45,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 989 [2020-11-29 20:21:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:45,936 INFO L225 Difference]: With dead ends: 35425 [2020-11-29 20:21:45,937 INFO L226 Difference]: Without dead ends: 17894 [2020-11-29 20:21:45,945 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 20:21:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17894 states. [2020-11-29 20:21:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17894 to 16053. [2020-11-29 20:21:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16053 states. [2020-11-29 20:21:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16053 states to 16053 states and 16873 transitions. [2020-11-29 20:21:46,177 INFO L78 Accepts]: Start accepts. Automaton has 16053 states and 16873 transitions. Word has length 989 [2020-11-29 20:21:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:46,178 INFO L481 AbstractCegarLoop]: Abstraction has 16053 states and 16873 transitions. [2020-11-29 20:21:46,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 16053 states and 16873 transitions. [2020-11-29 20:21:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2020-11-29 20:21:46,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:46,197 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:46,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-29 20:21:46,198 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:46,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1863757142, now seen corresponding path program 1 times [2020-11-29 20:21:46,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:46,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447473832] [2020-11-29 20:21:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 1732 proven. 0 refuted. 0 times theorem prover too weak. 1788 trivial. 0 not checked. [2020-11-29 20:21:47,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447473832] [2020-11-29 20:21:47,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:47,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:47,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612307069] [2020-11-29 20:21:47,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:47,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:47,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:47,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:47,477 INFO L87 Difference]: Start difference. First operand 16053 states and 16873 transitions. Second operand 3 states. [2020-11-29 20:21:48,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:48,274 INFO L93 Difference]: Finished difference Result 30815 states and 32415 transitions. [2020-11-29 20:21:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:48,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1047 [2020-11-29 20:21:48,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:48,289 INFO L225 Difference]: With dead ends: 30815 [2020-11-29 20:21:48,289 INFO L226 Difference]: Without dead ends: 16052 [2020-11-29 20:21:48,296 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 20:21:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16052 states. [2020-11-29 20:21:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16052 to 16052. [2020-11-29 20:21:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16052 states. [2020-11-29 20:21:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16052 states to 16052 states and 16871 transitions. [2020-11-29 20:21:48,558 INFO L78 Accepts]: Start accepts. Automaton has 16052 states and 16871 transitions. Word has length 1047 [2020-11-29 20:21:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:48,559 INFO L481 AbstractCegarLoop]: Abstraction has 16052 states and 16871 transitions. [2020-11-29 20:21:48,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 16052 states and 16871 transitions. [2020-11-29 20:21:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1141 [2020-11-29 20:21:48,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:48,580 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:48,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-11-29 20:21:48,580 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:48,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:48,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1055780727, now seen corresponding path program 1 times [2020-11-29 20:21:48,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:48,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209907852] [2020-11-29 20:21:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:49,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4314 backedges. 3101 proven. 0 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2020-11-29 20:21:49,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209907852] [2020-11-29 20:21:49,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:49,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:21:49,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507518885] [2020-11-29 20:21:49,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:49,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:49,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:49,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:49,737 INFO L87 Difference]: Start difference. First operand 16052 states and 16871 transitions. Second operand 4 states. [2020-11-29 20:21:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:52,253 INFO L93 Difference]: Finished difference Result 35611 states and 37392 transitions. [2020-11-29 20:21:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:52,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1140 [2020-11-29 20:21:52,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:52,269 INFO L225 Difference]: With dead ends: 35611 [2020-11-29 20:21:52,270 INFO L226 Difference]: Without dead ends: 19745 [2020-11-29 20:21:52,277 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 20:21:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19745 states. [2020-11-29 20:21:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19745 to 15140. [2020-11-29 20:21:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15140 states. [2020-11-29 20:21:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15140 states to 15140 states and 15874 transitions. [2020-11-29 20:21:52,481 INFO L78 Accepts]: Start accepts. Automaton has 15140 states and 15874 transitions. Word has length 1140 [2020-11-29 20:21:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:52,481 INFO L481 AbstractCegarLoop]: Abstraction has 15140 states and 15874 transitions. [2020-11-29 20:21:52,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 15140 states and 15874 transitions. [2020-11-29 20:21:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1774 [2020-11-29 20:21:52,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:52,509 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 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, 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 20:21:52,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-11-29 20:21:52,510 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:52,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:52,510 INFO L82 PathProgramCache]: Analyzing trace with hash 860212449, now seen corresponding path program 1 times [2020-11-29 20:21:52,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:52,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550252180] [2020-11-29 20:21:52,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9562 backedges. 5094 proven. 277 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2020-11-29 20:21:57,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550252180] [2020-11-29 20:21:57,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83064105] [2020-11-29 20:21:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/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 20:21:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:57,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 2203 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 20:21:57,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:58,072 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 20:21:58,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:58,109 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:58,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:58,124 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:58,303 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-11-29 20:21:58,304 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:21:58,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:21:58,345 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:22:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 9562 backedges. 5481 proven. 353 refuted. 0 times theorem prover too weak. 3728 trivial. 0 not checked. [2020-11-29 20:22:02,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:22:02,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2020-11-29 20:22:02,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882610975] [2020-11-29 20:22:02,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 20:22:02,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:02,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:22:02,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:22:02,638 INFO L87 Difference]: Start difference. First operand 15140 states and 15874 transitions. Second operand 10 states. [2020-11-29 20:22:09,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:09,536 INFO L93 Difference]: Finished difference Result 31850 states and 33376 transitions. [2020-11-29 20:22:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 20:22:09,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1773 [2020-11-29 20:22:09,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:09,552 INFO L225 Difference]: With dead ends: 31850 [2020-11-29 20:22:09,552 INFO L226 Difference]: Without dead ends: 16896 [2020-11-29 20:22:09,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1788 GetRequests, 1768 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:22:09,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16896 states. [2020-11-29 20:22:09,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16896 to 15324. [2020-11-29 20:22:09,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15324 states. [2020-11-29 20:22:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15324 states to 15324 states and 16042 transitions. [2020-11-29 20:22:09,796 INFO L78 Accepts]: Start accepts. Automaton has 15324 states and 16042 transitions. Word has length 1773 [2020-11-29 20:22:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:09,797 INFO L481 AbstractCegarLoop]: Abstraction has 15324 states and 16042 transitions. [2020-11-29 20:22:09,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 20:22:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 15324 states and 16042 transitions. [2020-11-29 20:22:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1887 [2020-11-29 20:22:09,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:09,830 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 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, 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 20:22:10,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-11-29 20:22:10,030 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:10,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:10,031 INFO L82 PathProgramCache]: Analyzing trace with hash -318933901, now seen corresponding path program 1 times [2020-11-29 20:22:10,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:10,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646995101] [2020-11-29 20:22:10,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10999 backedges. 6496 proven. 312 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2020-11-29 20:22:15,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646995101] [2020-11-29 20:22:15,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622800989] [2020-11-29 20:22:15,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:22:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:15,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:22:15,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:22:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 10999 backedges. 6365 proven. 0 refuted. 0 times theorem prover too weak. 4634 trivial. 0 not checked. [2020-11-29 20:22:18,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:22:18,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-29 20:22:18,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873281822] [2020-11-29 20:22:18,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:22:18,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:18,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:22:18,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:22:18,187 INFO L87 Difference]: Start difference. First operand 15324 states and 16042 transitions. Second operand 4 states. [2020-11-29 20:22:20,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:20,084 INFO L93 Difference]: Finished difference Result 23634 states and 24731 transitions. [2020-11-29 20:22:20,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:22:20,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1886 [2020-11-29 20:22:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:20,086 INFO L225 Difference]: With dead ends: 23634 [2020-11-29 20:22:20,086 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:22:20,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1891 GetRequests, 1884 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:22:20,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:22:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:22:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:22:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:22:20,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1886 [2020-11-29 20:22:20,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:20,093 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:22:20,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:22:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:22:20,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:22:20,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-11-29 20:22:20,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:22:27,909 WARN L193 SmtUtils]: Spent 7.60 s on a formula simplification. DAG size of input: 1704 DAG size of output: 1198 [2020-11-29 20:22:34,928 WARN L193 SmtUtils]: Spent 7.01 s on a formula simplification. DAG size of input: 1698 DAG size of output: 1195 [2020-11-29 20:22:52,533 WARN L193 SmtUtils]: Spent 17.58 s on a formula simplification. DAG size of input: 1099 DAG size of output: 165 [2020-11-29 20:23:10,034 WARN L193 SmtUtils]: Spent 17.49 s on a formula simplification. DAG size of input: 1098 DAG size of output: 164 [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,038 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,039 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,040 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,041 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,042 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse33 (+ ~a23~0 43))) (let ((.cse30 (<= ~a23~0 138)) (.cse17 (<= ~a25~0 9)) (.cse24 (<= 278 ~a29~0)) (.cse28 (= ~a25~0 13)) (.cse27 (<= ~a23~0 312)) (.cse2 (= ~a8~0 15)) (.cse7 (= ~a3~0 1)) (.cse31 (< 0 .cse33)) (.cse23 (<= ~a25~0 10)) (.cse25 (<= 312 ~a23~0)) (.cse20 (< 245 ~a29~0)) (.cse9 (= ~a4~0 1))) (let ((.cse6 (<= (+ ~a23~0 55) 0)) (.cse16 (<= ~a29~0 275)) (.cse10 (<= ~a4~0 0)) (.cse15 (<= ~a29~0 274)) (.cse14 (or (and .cse23 .cse9 (<= 247 ~a29~0)) (and .cse23 .cse25 .cse20 .cse9))) (.cse1 (<= (+ ~a29~0 22) 0)) (.cse3 (<= .cse33 0)) (.cse4 (<= 0 (+ ~a29~0 580294))) (.cse26 (<= ~a29~0 220)) (.cse0 (= ~a25~0 11)) (.cse13 (<= ~a29~0 245)) (.cse8 (let ((.cse32 (<= 130 ~a29~0))) (or (and .cse30 .cse32 .cse9) (and .cse17 (<= ~a29~0 140) .cse27 .cse32 .cse2 .cse7) (and .cse24 .cse28 .cse27 .cse2 .cse7 .cse31)))) (.cse29 (<= ~a25~0 11)) (.cse5 (= ~a25~0 10)) (.cse19 (not (= 6 ULTIMATE.start_calculate_output_~input))) (.cse11 (<= 141 ~a29~0)) (.cse12 (= ~a25~0 12)) (.cse22 (<= ~a29~0 599998)) (.cse18 (<= ~a23~0 600000))) (or (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4 .cse6)) .cse7) (and (<= 27009 ~a29~0) .cse8 .cse2 .cse9 .cse7) (and .cse10 .cse11 .cse2 .cse12 .cse13 .cse7 .cse6) (and (or (and .cse14 .cse2 .cse15) (and .cse16 .cse17 .cse14 .cse2)) .cse18 .cse7) (and .cse10 .cse1 .cse19 .cse2 .cse12 .cse7 .cse6) (and .cse16 .cse10 .cse20 .cse2 .cse12 .cse7) (and .cse2 (let ((.cse21 (or (and .cse23 .cse24) (and .cse20 .cse12)))) (or (and .cse17 .cse21 .cse22 .cse3) (and .cse21 .cse15 .cse3))) .cse7) (and .cse8 .cse11 .cse2 .cse13 .cse7) (and .cse5 .cse11 .cse2 .cse13 .cse9 .cse7) (and (= ~a25~0 9) (<= ~a23~0 306) .cse14 .cse2 .cse7) (and .cse17 .cse1 .cse2 .cse3 .cse4 .cse7) (and .cse25 .cse23 .cse11 .cse2 .cse13 .cse9 .cse7) (and (or (and .cse11 .cse2 .cse12 .cse9 (<= ~a29~0 232)) (and .cse25 .cse0 .cse11 .cse2 .cse26 .cse9)) .cse18 .cse7) (and .cse17 .cse27 .cse2 .cse26 .cse9 .cse7) (and .cse0 .cse20 .cse2 .cse18 .cse9 .cse7) (and .cse28 .cse2 .cse18 .cse13 .cse9 .cse7) (and .cse24 .cse2 .cse29 .cse18 .cse9 .cse7) (and .cse8 .cse29 .cse9) (and (< 306 ~a23~0) .cse5 .cse2 .cse18 (or .cse19 .cse11) .cse9 .cse7) (and .cse30 (<= ~a29~0 130) .cse9) (and .cse27 .cse2 .cse12 .cse31 .cse9 .cse7) (and .cse20 .cse2 .cse12 .cse22 .cse18 .cse9 .cse31 .cse7) (and .cse28 .cse2 .cse22 .cse18 .cse9 .cse31 .cse7))))) [2020-11-29 20:23:10,042 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,042 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 20:23:10,042 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 20:23:10,043 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 20:23:10,043 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,044 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 20:23:10,045 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,046 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse34 (+ ~a23~0 43))) (let ((.cse32 (<= ~a23~0 138)) (.cse22 (<= ~a25~0 9)) (.cse17 (<= 130 ~a29~0)) (.cse28 (<= 278 ~a29~0)) (.cse30 (= ~a25~0 13)) (.cse16 (<= ~a23~0 312)) (.cse2 (= ~a8~0 15)) (.cse7 (= ~a3~0 1)) (.cse33 (< 0 .cse34)) (.cse15 (<= ~a25~0 10)) (.cse14 (<= 312 ~a23~0)) (.cse25 (< 245 ~a29~0)) (.cse9 (= ~a4~0 1))) (let ((.cse6 (<= (+ ~a23~0 55) 0)) (.cse21 (<= ~a29~0 275)) (.cse10 (<= ~a4~0 0)) (.cse20 (<= ~a29~0 274)) (.cse19 (or (and .cse15 .cse9 (<= 247 ~a29~0)) (and .cse15 .cse14 .cse25 .cse9))) (.cse1 (<= (+ ~a29~0 22) 0)) (.cse3 (<= .cse34 0)) (.cse4 (<= 0 (+ ~a29~0 580294))) (.cse29 (<= ~a29~0 220)) (.cse0 (= ~a25~0 11)) (.cse13 (<= ~a29~0 245)) (.cse8 (or (and .cse32 .cse17 .cse9) (and .cse22 (<= ~a29~0 140) .cse16 .cse17 .cse2 .cse7) (and .cse28 .cse30 .cse16 .cse2 .cse7 .cse33))) (.cse31 (<= ~a25~0 11)) (.cse5 (= ~a25~0 10)) (.cse24 (not (= 6 ULTIMATE.start_calculate_output_~input))) (.cse11 (<= 141 ~a29~0)) (.cse18 (<= ~a29~0 130)) (.cse12 (= ~a25~0 12)) (.cse27 (<= ~a29~0 599998)) (.cse23 (<= ~a23~0 600000))) (or (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4 .cse6)) .cse7) (and (<= 27009 ~a29~0) .cse8 .cse2 .cse9 .cse7) (and .cse10 .cse11 .cse2 .cse12 .cse13 .cse7 .cse6) (and .cse14 .cse15 .cse16 .cse17 .cse18 .cse2 .cse9 .cse7) (and (or (and .cse19 .cse2 .cse20) (and .cse21 .cse22 .cse19 .cse2)) .cse23 .cse7) (and .cse10 .cse1 .cse24 .cse2 .cse12 .cse7 .cse6) (and .cse21 .cse10 .cse25 .cse2 .cse12 .cse7) (and .cse2 (let ((.cse26 (or (and .cse15 .cse28) (and .cse25 .cse12)))) (or (and .cse22 .cse26 .cse27 .cse3) (and .cse26 .cse20 .cse3))) .cse7) (and .cse8 .cse11 .cse2 .cse13 .cse7) (and .cse5 .cse11 .cse2 .cse13 .cse9 .cse7) (and (= ~a25~0 9) (<= ~a23~0 306) .cse19 .cse2 .cse7) (and .cse22 .cse1 .cse2 .cse3 .cse4 .cse7) (and .cse14 .cse15 .cse11 .cse2 .cse13 .cse9 .cse7) (and (or (and .cse11 .cse2 .cse12 .cse9 (<= ~a29~0 232)) (and .cse14 .cse0 .cse11 .cse2 .cse29 .cse9)) .cse23 .cse7) (and .cse22 .cse16 .cse2 .cse29 .cse9 .cse7) (and .cse0 .cse25 .cse2 .cse23 .cse9 .cse7) (and .cse30 .cse2 .cse23 .cse13 .cse9 .cse7) (and .cse28 .cse2 .cse31 .cse23 .cse9 .cse7) (and .cse8 .cse31 .cse9) (and (< 306 ~a23~0) .cse5 .cse2 .cse23 (or .cse24 .cse11) .cse9 .cse7) (and .cse32 .cse18 .cse9) (and .cse16 .cse2 .cse12 .cse33 .cse9 .cse7) (and .cse25 .cse2 .cse12 .cse27 .cse23 .cse9 .cse33 .cse7) (and .cse30 .cse2 .cse27 .cse23 .cse9 .cse33 .cse7))))) [2020-11-29 20:23:10,046 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,046 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,046 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,046 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,046 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,046 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,047 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 20:23:10,048 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,049 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,050 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,051 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,052 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 20:23:10,053 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 20:23:10,053 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,053 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,053 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,053 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,053 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,054 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,055 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,055 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,055 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 20:23:10,055 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 20:23:10,055 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 20:23:10,055 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,056 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,057 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,058 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,058 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,058 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,058 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:23:10,058 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,058 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 20:23:10,059 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 20:23:10,060 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,060 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,060 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,060 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,060 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,060 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,061 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,062 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,063 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 20:23:10,063 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 20:23:10,063 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,063 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,063 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 20:23:10,063 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,064 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,065 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,066 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,066 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,066 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,066 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,066 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,066 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,067 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,068 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,068 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,068 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,068 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,068 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,068 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 20:23:10,069 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 20:23:10,069 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:23:10,069 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,069 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,069 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,069 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,070 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,071 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,071 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,071 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,071 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,071 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 20:23:10,071 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:23:10,072 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,072 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,072 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 20:23:10,072 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 20:23:10,072 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 20:23:10,072 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 20:23:10,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:23:10 BoogieIcfgContainer [2020-11-29 20:23:10,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:23:10,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:23:10,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:23:10,129 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:23:10,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:19:51" (3/4) ... [2020-11-29 20:23:10,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:23:10,187 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:23:10,199 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:23:10,202 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:23:10,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:23:10,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e2c72525-42b9-4fcc-9c3f-f0005d13dc58/bin/uautomizer/witness.graphml [2020-11-29 20:23:10,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:23:10,412 INFO L168 Benchmark]: Toolchain (without parser) took 202236.01 ms. Allocated memory was 92.3 MB in the beginning and 3.3 GB in the end (delta: 3.2 GB). Free memory was 54.9 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,413 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 65.3 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:23:10,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.55 ms. Allocated memory is still 92.3 MB. Free memory was 54.7 MB in the beginning and 35.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.42 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 35.4 MB in the beginning and 74.0 MB in the end (delta: -38.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,414 INFO L168 Benchmark]: Boogie Preprocessor took 187.79 ms. Allocated memory is still 113.2 MB. Free memory was 74.0 MB in the beginning and 64.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,415 INFO L168 Benchmark]: RCFGBuilder took 2311.40 ms. Allocated memory was 113.2 MB in the beginning and 155.2 MB in the end (delta: 41.9 MB). Free memory was 64.2 MB in the beginning and 116.6 MB in the end (delta: -52.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,415 INFO L168 Benchmark]: TraceAbstraction took 198262.40 ms. Allocated memory was 155.2 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 115.5 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,417 INFO L168 Benchmark]: Witness Printer took 281.83 ms. Allocated memory is still 3.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:10,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 65.3 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 984.55 ms. Allocated memory is still 92.3 MB. Free memory was 54.7 MB in the beginning and 35.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 199.42 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 35.4 MB in the beginning and 74.0 MB in the end (delta: -38.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 187.79 ms. Allocated memory is still 113.2 MB. Free memory was 74.0 MB in the beginning and 64.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2311.40 ms. Allocated memory was 113.2 MB in the beginning and 155.2 MB in the end (delta: 41.9 MB). Free memory was 64.2 MB in the beginning and 116.6 MB in the end (delta: -52.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 198262.40 ms. Allocated memory was 155.2 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 115.5 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. * Witness Printer took 281.83 ms. Allocated memory is still 3.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 27.3 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: ((((((((((((((((((((((((((((a25 == 11 && a29 + 22 <= 0) && a8 == 15) && a23 + 43 <= 0) && 0 <= a29 + 580294) || ((((a25 == 10 && a29 + 22 <= 0) && a8 == 15) && 0 <= a29 + 580294) && a23 + 55 <= 0)) && a3 == 1) || ((((27009 <= a29 && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a25 == 13) && a23 <= 312) && a8 == 15) && a3 == 1) && 0 < a23 + 43))) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((((a4 <= 0 && 141 <= a29) && a8 == 15) && a25 == 12) && a29 <= 245) && a3 == 1) && a23 + 55 <= 0)) || (((((((312 <= a23 && a25 <= 10) && a23 <= 312) && 130 <= a29) && a29 <= 130) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((((((a25 <= 10 && a4 == 1) && 247 <= a29) || (((a25 <= 10 && 312 <= a23) && 245 < a29) && a4 == 1)) && a8 == 15) && a29 <= 274) || (((a29 <= 275 && a25 <= 9) && (((a25 <= 10 && a4 == 1) && 247 <= a29) || (((a25 <= 10 && 312 <= a23) && 245 < a29) && a4 == 1))) && a8 == 15)) && a23 <= 600000) && a3 == 1)) || ((((((a4 <= 0 && a29 + 22 <= 0) && !(6 == input)) && a8 == 15) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || (((((a29 <= 275 && a4 <= 0) && 245 < a29) && a8 == 15) && a25 == 12) && a3 == 1)) || ((a8 == 15 && ((((a25 <= 9 && ((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12))) && a29 <= 599998) && a23 + 43 <= 0) || ((((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12)) && a29 <= 274) && a23 + 43 <= 0))) && a3 == 1)) || ((((((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a25 == 13) && a23 <= 312) && a8 == 15) && a3 == 1) && 0 < a23 + 43)) && 141 <= a29) && a8 == 15) && a29 <= 245) && a3 == 1)) || (((((a25 == 10 && 141 <= a29) && a8 == 15) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((a25 == 9 && a23 <= 306) && (((a25 <= 10 && a4 == 1) && 247 <= a29) || (((a25 <= 10 && 312 <= a23) && 245 < a29) && a4 == 1))) && a8 == 15) && a3 == 1)) || (((((a25 <= 9 && a29 + 22 <= 0) && a8 == 15) && a23 + 43 <= 0) && 0 <= a29 + 580294) && a3 == 1)) || ((((((312 <= a23 && a25 <= 10) && 141 <= a29) && a8 == 15) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((((141 <= a29 && a8 == 15) && a25 == 12) && a4 == 1) && a29 <= 232) || (((((312 <= a23 && a25 == 11) && 141 <= a29) && a8 == 15) && a29 <= 220) && a4 == 1)) && a23 <= 600000) && a3 == 1)) || (((((a25 <= 9 && a23 <= 312) && a8 == 15) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((a25 == 11 && 245 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((278 <= a29 && a8 == 15) && a25 <= 11) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a25 == 13) && a23 <= 312) && a8 == 15) && a3 == 1) && 0 < a23 + 43)) && a25 <= 11) && a4 == 1)) || ((((((306 < a23 && a25 == 10) && a8 == 15) && a23 <= 600000) && (!(6 == input) || 141 <= a29)) && a4 == 1) && a3 == 1)) || ((a23 <= 138 && a29 <= 130) && a4 == 1)) || (((((a23 <= 312 && a8 == 15) && a25 == 12) && 0 < a23 + 43) && a4 == 1) && a3 == 1)) || (((((((245 < a29 && a8 == 15) && a25 == 12) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1)) || ((((((a25 == 13 && a8 == 15) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a25 == 11 && a29 + 22 <= 0) && a8 == 15) && a23 + 43 <= 0) && 0 <= a29 + 580294) || ((((a25 == 10 && a29 + 22 <= 0) && a8 == 15) && 0 <= a29 + 580294) && a23 + 55 <= 0)) && a3 == 1) || ((((27009 <= a29 && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a25 == 13) && a23 <= 312) && a8 == 15) && a3 == 1) && 0 < a23 + 43))) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((((a4 <= 0 && 141 <= a29) && a8 == 15) && a25 == 12) && a29 <= 245) && a3 == 1) && a23 + 55 <= 0)) || ((((((((a25 <= 10 && a4 == 1) && 247 <= a29) || (((a25 <= 10 && 312 <= a23) && 245 < a29) && a4 == 1)) && a8 == 15) && a29 <= 274) || (((a29 <= 275 && a25 <= 9) && (((a25 <= 10 && a4 == 1) && 247 <= a29) || (((a25 <= 10 && 312 <= a23) && 245 < a29) && a4 == 1))) && a8 == 15)) && a23 <= 600000) && a3 == 1)) || ((((((a4 <= 0 && a29 + 22 <= 0) && !(6 == input)) && a8 == 15) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || (((((a29 <= 275 && a4 <= 0) && 245 < a29) && a8 == 15) && a25 == 12) && a3 == 1)) || ((a8 == 15 && ((((a25 <= 9 && ((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12))) && a29 <= 599998) && a23 + 43 <= 0) || ((((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12)) && a29 <= 274) && a23 + 43 <= 0))) && a3 == 1)) || ((((((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a25 == 13) && a23 <= 312) && a8 == 15) && a3 == 1) && 0 < a23 + 43)) && 141 <= a29) && a8 == 15) && a29 <= 245) && a3 == 1)) || (((((a25 == 10 && 141 <= a29) && a8 == 15) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((a25 == 9 && a23 <= 306) && (((a25 <= 10 && a4 == 1) && 247 <= a29) || (((a25 <= 10 && 312 <= a23) && 245 < a29) && a4 == 1))) && a8 == 15) && a3 == 1)) || (((((a25 <= 9 && a29 + 22 <= 0) && a8 == 15) && a23 + 43 <= 0) && 0 <= a29 + 580294) && a3 == 1)) || ((((((312 <= a23 && a25 <= 10) && 141 <= a29) && a8 == 15) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((((141 <= a29 && a8 == 15) && a25 == 12) && a4 == 1) && a29 <= 232) || (((((312 <= a23 && a25 == 11) && 141 <= a29) && a8 == 15) && a29 <= 220) && a4 == 1)) && a23 <= 600000) && a3 == 1)) || (((((a25 <= 9 && a23 <= 312) && a8 == 15) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((a25 == 11 && 245 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((278 <= a29 && a8 == 15) && a25 <= 11) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a25 == 13) && a23 <= 312) && a8 == 15) && a3 == 1) && 0 < a23 + 43)) && a25 <= 11) && a4 == 1)) || ((((((306 < a23 && a25 == 10) && a8 == 15) && a23 <= 600000) && (!(6 == input) || 141 <= a29)) && a4 == 1) && a3 == 1)) || ((a23 <= 138 && a29 <= 130) && a4 == 1)) || (((((a23 <= 312 && a8 == 15) && a25 == 12) && 0 < a23 + 43) && a4 == 1) && a3 == 1)) || (((((((245 < a29 && a8 == 15) && a25 == 12) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1)) || ((((((a25 == 13 && a8 == 15) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 148.3s, OverallIterations: 39, TraceHistogramMax: 15, AutomataDifference: 83.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 49.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6267 SDtfs, 9757 SDslu, 1146 SDs, 0 SdLazy, 33718 SolverSat, 5397 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 51.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7606 GetRequests, 7473 SyntacticMatches, 5 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26421occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.1s AutomataMinimizationTime, 39 MinimizatonAttempts, 72336 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 149 NumberOfFragments, 1564 HoareAnnotationTreeSize, 3 FomulaSimplifications, 27153464 FormulaSimplificationTreeSizeReduction, 14.6s HoareSimplificationTime, 3 FomulaSimplificationsInter, 21065359 FormulaSimplificationTreeSizeReductionInter, 35.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 21.8s InterpolantComputationTime, 31306 NumberOfCodeBlocks, 31306 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 31259 ConstructedInterpolants, 131 QuantifiedInterpolants, 98556660 SizeOfPredicates, 19 NumberOfNonLiveVariables, 9505 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 47 InterpolantComputations, 36 PerfectInterpolantSequences, 87440/89754 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...