./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC --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 0610fb40496b0ecade3a5ec9ba274ec558241ab5 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:33:15,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:15,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:15,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:15,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:15,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:15,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:15,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:15,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:15,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:15,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:15,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:15,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:15,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:15,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:15,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:15,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:15,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:15,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:15,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:15,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:15,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:15,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:15,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:15,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:15,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:15,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:15,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:15,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:15,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:15,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:15,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:15,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:15,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:15,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:15,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:15,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:15,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:15,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:15,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:15,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:15,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:33:15,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:15,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:15,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:15,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:15,793 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:15,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:15,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:15,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:15,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:15,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:15,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:15,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:15,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:15,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:15,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:15,801 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:15,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:15,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:15,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:15,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:15,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:15,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:15,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:15,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:15,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:15,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:15,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:15,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:15,804 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_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0610fb40496b0ecade3a5ec9ba274ec558241ab5 [2021-10-11 00:33:16,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:16,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:16,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:16,181 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:16,182 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:16,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem01_label06.c [2021-10-11 00:33:16,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/data/40dfb82e0/e0395398a9364e40905f097e938f9d7c/FLAGc8c3c60fe [2021-10-11 00:33:16,891 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:16,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/sv-benchmarks/c/eca-rers2012/Problem01_label06.c [2021-10-11 00:33:16,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/data/40dfb82e0/e0395398a9364e40905f097e938f9d7c/FLAGc8c3c60fe [2021-10-11 00:33:17,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/data/40dfb82e0/e0395398a9364e40905f097e938f9d7c [2021-10-11 00:33:17,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:17,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:33:17,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:17,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:17,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:17,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6095866b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17, skipping insertion in model container [2021-10-11 00:33:17,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:17,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:17,590 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/sv-benchmarks/c/eca-rers2012/Problem01_label06.c[20964,20977] [2021-10-11 00:33:17,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:17,622 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:17,757 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/sv-benchmarks/c/eca-rers2012/Problem01_label06.c[20964,20977] [2021-10-11 00:33:17,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:17,814 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:17,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17 WrapperNode [2021-10-11 00:33:17,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:17,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:17,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:33:17,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:33:17,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:17,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:17,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:17,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:17,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:17,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:18,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:18,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... [2021-10-11 00:33:18,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:18,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:18,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:18,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:18,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:33:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:33:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:19,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:19,661 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:33:19,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:19 BoogieIcfgContainer [2021-10-11 00:33:19,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:19,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:19,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:19,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:19,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:17" (1/3) ... [2021-10-11 00:33:19,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6532f1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:19, skipping insertion in model container [2021-10-11 00:33:19,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:17" (2/3) ... [2021-10-11 00:33:19,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6532f1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:19, skipping insertion in model container [2021-10-11 00:33:19,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:19" (3/3) ... [2021-10-11 00:33:19,674 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2021-10-11 00:33:19,689 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:19,693 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:33:19,706 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:33:19,734 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:19,735 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:33:19,735 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:19,735 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:19,735 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:19,735 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:19,736 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:19,736 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:19,757 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2021-10-11 00:33:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-11 00:33:19,771 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:19,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:19,772 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:19,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1065839007, now seen corresponding path program 1 times [2021-10-11 00:33:19,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:19,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497384432] [2021-10-11 00:33:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:20,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497384432] [2021-10-11 00:33:20,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:20,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:20,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962598757] [2021-10-11 00:33:20,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:20,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:20,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:20,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:20,267 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2021-10-11 00:33:21,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:21,309 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-10-11 00:33:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:21,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2021-10-11 00:33:21,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:21,343 INFO L225 Difference]: With dead ends: 528 [2021-10-11 00:33:21,355 INFO L226 Difference]: Without dead ends: 266 [2021-10-11 00:33:21,360 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 [2021-10-11 00:33:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-11 00:33:21,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-11 00:33:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-10-11 00:33:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2021-10-11 00:33:21,456 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 124 [2021-10-11 00:33:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:21,458 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2021-10-11 00:33:21,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2021-10-11 00:33:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-11 00:33:21,466 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:21,466 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:21,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:21,467 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:21,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:21,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1186718761, now seen corresponding path program 1 times [2021-10-11 00:33:21,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:21,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416498419] [2021-10-11 00:33:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:21,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416498419] [2021-10-11 00:33:21,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338322020] [2021-10-11 00:33:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:33:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:22,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:33:22,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:33:22,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:33:22,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-11 00:33:22,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081314309] [2021-10-11 00:33:22,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:22,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:22,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:22,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:22,377 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand 3 states. [2021-10-11 00:33:23,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:23,017 INFO L93 Difference]: Finished difference Result 792 states and 1117 transitions. [2021-10-11 00:33:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:23,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2021-10-11 00:33:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:23,029 INFO L225 Difference]: With dead ends: 792 [2021-10-11 00:33:23,029 INFO L226 Difference]: Without dead ends: 528 [2021-10-11 00:33:23,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-10-11 00:33:23,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-10-11 00:33:23,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2021-10-11 00:33:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2021-10-11 00:33:23,085 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 128 [2021-10-11 00:33:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:23,089 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2021-10-11 00:33:23,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2021-10-11 00:33:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-10-11 00:33:23,102 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:23,103 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:23,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:33:23,318 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:23,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:23,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1298932630, now seen corresponding path program 1 times [2021-10-11 00:33:23,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:23,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483288730] [2021-10-11 00:33:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:23,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483288730] [2021-10-11 00:33:23,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:23,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:23,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237827519] [2021-10-11 00:33:23,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:23,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:23,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:23,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:23,462 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 3 states. [2021-10-11 00:33:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:24,118 INFO L93 Difference]: Finished difference Result 1578 states and 2119 transitions. [2021-10-11 00:33:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:24,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2021-10-11 00:33:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:24,133 INFO L225 Difference]: With dead ends: 1578 [2021-10-11 00:33:24,134 INFO L226 Difference]: Without dead ends: 1052 [2021-10-11 00:33:24,135 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 [2021-10-11 00:33:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-10-11 00:33:24,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2021-10-11 00:33:24,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2021-10-11 00:33:24,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1156 transitions. [2021-10-11 00:33:24,171 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1156 transitions. Word has length 135 [2021-10-11 00:33:24,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:24,171 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1156 transitions. [2021-10-11 00:33:24,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1156 transitions. [2021-10-11 00:33:24,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-10-11 00:33:24,175 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:24,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:24,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:33:24,176 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:24,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:24,176 INFO L82 PathProgramCache]: Analyzing trace with hash 86141196, now seen corresponding path program 1 times [2021-10-11 00:33:24,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:24,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73989634] [2021-10-11 00:33:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:24,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73989634] [2021-10-11 00:33:24,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:24,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:24,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817014380] [2021-10-11 00:33:24,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:24,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:24,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:24,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:24,263 INFO L87 Difference]: Start difference. First operand 921 states and 1156 transitions. Second operand 3 states. [2021-10-11 00:33:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:25,000 INFO L93 Difference]: Finished difference Result 2626 states and 3307 transitions. [2021-10-11 00:33:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:25,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-10-11 00:33:25,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:25,011 INFO L225 Difference]: With dead ends: 2626 [2021-10-11 00:33:25,011 INFO L226 Difference]: Without dead ends: 1707 [2021-10-11 00:33:25,013 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 [2021-10-11 00:33:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-10-11 00:33:25,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2021-10-11 00:33:25,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2021-10-11 00:33:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1781 transitions. [2021-10-11 00:33:25,051 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1781 transitions. Word has length 147 [2021-10-11 00:33:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:25,051 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1781 transitions. [2021-10-11 00:33:25,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1781 transitions. [2021-10-11 00:33:25,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-10-11 00:33:25,056 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:25,056 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:25,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:33:25,056 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:25,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:25,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1658353278, now seen corresponding path program 1 times [2021-10-11 00:33:25,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:25,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564183867] [2021-10-11 00:33:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-11 00:33:25,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564183867] [2021-10-11 00:33:25,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:25,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:25,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540140836] [2021-10-11 00:33:25,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:25,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:25,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:25,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:25,150 INFO L87 Difference]: Start difference. First operand 1445 states and 1781 transitions. Second operand 3 states. [2021-10-11 00:33:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:25,749 INFO L93 Difference]: Finished difference Result 3150 states and 3846 transitions. [2021-10-11 00:33:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:25,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2021-10-11 00:33:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:25,758 INFO L225 Difference]: With dead ends: 3150 [2021-10-11 00:33:25,758 INFO L226 Difference]: Without dead ends: 1445 [2021-10-11 00:33:25,760 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 [2021-10-11 00:33:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-10-11 00:33:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2021-10-11 00:33:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2021-10-11 00:33:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1619 transitions. [2021-10-11 00:33:25,830 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1619 transitions. Word has length 151 [2021-10-11 00:33:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:25,831 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1619 transitions. [2021-10-11 00:33:25,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1619 transitions. [2021-10-11 00:33:25,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-11 00:33:25,836 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:25,836 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:25,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:33:25,836 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:25,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:25,837 INFO L82 PathProgramCache]: Analyzing trace with hash -221957046, now seen corresponding path program 1 times [2021-10-11 00:33:25,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:25,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434971025] [2021-10-11 00:33:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-11 00:33:25,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434971025] [2021-10-11 00:33:25,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:25,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:25,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607107544] [2021-10-11 00:33:25,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:25,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:25,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:25,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:25,942 INFO L87 Difference]: Start difference. First operand 1445 states and 1619 transitions. Second operand 4 states. [2021-10-11 00:33:26,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:26,828 INFO L93 Difference]: Finished difference Result 3936 states and 4442 transitions. [2021-10-11 00:33:26,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:26,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2021-10-11 00:33:26,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:26,842 INFO L225 Difference]: With dead ends: 3936 [2021-10-11 00:33:26,842 INFO L226 Difference]: Without dead ends: 2493 [2021-10-11 00:33:26,844 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 [2021-10-11 00:33:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2021-10-11 00:33:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2100. [2021-10-11 00:33:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2021-10-11 00:33:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2313 transitions. [2021-10-11 00:33:26,898 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2313 transitions. Word has length 155 [2021-10-11 00:33:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:26,899 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2313 transitions. [2021-10-11 00:33:26,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:26,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2313 transitions. [2021-10-11 00:33:26,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-10-11 00:33:26,904 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:26,905 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:26,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:33:26,905 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:26,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:26,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1647485100, now seen corresponding path program 1 times [2021-10-11 00:33:26,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:26,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504032276] [2021-10-11 00:33:26,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-11 00:33:26,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504032276] [2021-10-11 00:33:26,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:26,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:26,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999243552] [2021-10-11 00:33:26,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:26,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:26,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:26,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:26,971 INFO L87 Difference]: Start difference. First operand 2100 states and 2313 transitions. Second operand 3 states. [2021-10-11 00:33:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:27,577 INFO L93 Difference]: Finished difference Result 4984 states and 5534 transitions. [2021-10-11 00:33:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:27,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2021-10-11 00:33:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:27,595 INFO L225 Difference]: With dead ends: 4984 [2021-10-11 00:33:27,596 INFO L226 Difference]: Without dead ends: 3017 [2021-10-11 00:33:27,598 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 [2021-10-11 00:33:27,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2021-10-11 00:33:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2624. [2021-10-11 00:33:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2624 states. [2021-10-11 00:33:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2927 transitions. [2021-10-11 00:33:27,670 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2927 transitions. Word has length 164 [2021-10-11 00:33:27,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:27,670 INFO L481 AbstractCegarLoop]: Abstraction has 2624 states and 2927 transitions. [2021-10-11 00:33:27,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2927 transitions. [2021-10-11 00:33:27,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-10-11 00:33:27,677 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:27,678 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:27,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:33:27,678 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:27,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1133624474, now seen corresponding path program 1 times [2021-10-11 00:33:27,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:27,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111107875] [2021-10-11 00:33:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-11 00:33:27,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111107875] [2021-10-11 00:33:27,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:27,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:33:27,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295320452] [2021-10-11 00:33:27,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:27,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:27,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:27,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:33:27,807 INFO L87 Difference]: Start difference. First operand 2624 states and 2927 transitions. Second operand 3 states. [2021-10-11 00:33:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:28,391 INFO L93 Difference]: Finished difference Result 5508 states and 6148 transitions. [2021-10-11 00:33:28,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:28,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2021-10-11 00:33:28,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:28,407 INFO L225 Difference]: With dead ends: 5508 [2021-10-11 00:33:28,408 INFO L226 Difference]: Without dead ends: 2886 [2021-10-11 00:33:28,411 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 [2021-10-11 00:33:28,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-10-11 00:33:28,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2021-10-11 00:33:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2021-10-11 00:33:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3203 transitions. [2021-10-11 00:33:28,491 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3203 transitions. Word has length 180 [2021-10-11 00:33:28,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:28,492 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3203 transitions. [2021-10-11 00:33:28,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3203 transitions. [2021-10-11 00:33:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-10-11 00:33:28,500 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:28,501 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:28,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:33:28,501 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:33:28,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:28,502 INFO L82 PathProgramCache]: Analyzing trace with hash -120656482, now seen corresponding path program 1 times [2021-10-11 00:33:28,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:28,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590151682] [2021-10-11 00:33:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 65 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-11 00:33:28,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590151682] [2021-10-11 00:33:28,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648267200] [2021-10-11 00:33:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:33:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:28,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:33:28,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-11 00:33:29,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:33:29,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:33:29,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578822892] [2021-10-11 00:33:29,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:33:29,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:29,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:33:29,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:29,244 INFO L87 Difference]: Start difference. First operand 2886 states and 3203 transitions. Second operand 3 states. [2021-10-11 00:33:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:29,918 INFO L93 Difference]: Finished difference Result 5768 states and 6415 transitions. [2021-10-11 00:33:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:33:29,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2021-10-11 00:33:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:29,920 INFO L225 Difference]: With dead ends: 5768 [2021-10-11 00:33:29,920 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:33:29,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:29,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:33:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:33:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:33:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:33:29,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2021-10-11 00:33:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:29,927 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:33:29,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:33:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:33:29,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:33:30,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:30,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:33:30,373 INFO L262 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2021-10-11 00:33:30,374 INFO L262 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2021-10-11 00:33:30,374 INFO L262 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2021-10-11 00:33:30,374 INFO L262 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2021-10-11 00:33:30,374 INFO L262 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2021-10-11 00:33:30,374 INFO L262 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-10-11 00:33:30,374 INFO L262 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-10-11 00:33:30,375 INFO L262 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2021-10-11 00:33:30,376 INFO L262 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-10-11 00:33:30,377 INFO L262 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-10-11 00:33:30,378 INFO L262 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2021-10-11 00:33:30,379 INFO L262 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,380 INFO L262 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2021-10-11 00:33:30,381 INFO L262 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-10-11 00:33:30,382 INFO L262 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,383 INFO L262 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2021-10-11 00:33:30,384 INFO L262 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,385 INFO L262 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2021-10-11 00:33:30,386 INFO L262 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-10-11 00:33:30,387 INFO L262 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,388 INFO L262 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2021-10-11 00:33:30,389 INFO L262 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2021-10-11 00:33:30,390 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2021-10-11 00:33:30,390 INFO L262 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-10-11 00:33:30,390 INFO L258 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a17~0 1)) (.cse2 (= ~a20~0 1)) (.cse1 (<= ~a8~0 13))) (or (and (not (= ~a7~0 1)) .cse0) (<= ~a17~0 0) (and (<= ~a16~0 4) .cse1) (and .cse2 .cse1 .cse0) (and (= ~a21~0 1) (<= ~a7~0 0) .cse2 .cse1))) [2021-10-11 00:33:30,390 INFO L262 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2021-10-11 00:33:30,391 INFO L262 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-10-11 00:33:30,392 INFO L262 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-10-11 00:33:30,393 INFO L262 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-10-11 00:33:30,393 INFO L262 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-10-11 00:33:30,393 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:33:30,393 INFO L262 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-10-11 00:33:30,393 INFO L265 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-10-11 00:33:30,393 INFO L262 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,393 INFO L262 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2021-10-11 00:33:30,394 INFO L262 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,395 INFO L262 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2021-10-11 00:33:30,396 INFO L262 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-10-11 00:33:30,397 INFO L262 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-10-11 00:33:30,398 INFO L262 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-10-11 00:33:30,398 INFO L262 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,398 INFO L258 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a17~0 1)) (.cse2 (= ~a20~0 1)) (.cse1 (<= ~a8~0 13))) (or (and (not (= ~a7~0 1)) .cse0) (<= ~a17~0 0) (and (<= ~a16~0 4) .cse1) (and .cse2 .cse1 .cse0) (and (= ~a21~0 1) (<= ~a7~0 0) .cse2 .cse1))) [2021-10-11 00:33:30,398 INFO L262 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,398 INFO L262 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,398 INFO L262 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 558) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2021-10-11 00:33:30,399 INFO L262 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,400 INFO L262 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,401 INFO L262 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,401 INFO L262 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:33:30,401 INFO L262 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-10-11 00:33:30,401 INFO L262 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-10-11 00:33:30,401 INFO L262 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-10-11 00:33:30,401 INFO L262 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-10-11 00:33:30,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:30 BoogieIcfgContainer [2021-10-11 00:33:30,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:30,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:30,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:30,423 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:30,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:19" (3/4) ... [2021-10-11 00:33:30,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:33:30,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:33:30,451 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:33:30,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:30,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:30,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_496882cc-9497-4776-b53a-665428c75054/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:33:30,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:30,593 INFO L168 Benchmark]: Toolchain (without parser) took 13464.79 ms. Allocated memory was 96.5 MB in the beginning and 314.6 MB in the end (delta: 218.1 MB). Free memory was 58.2 MB in the beginning and 185.9 MB in the end (delta: -127.6 MB). Peak memory consumption was 90.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,594 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 96.5 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:30,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.09 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 55.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.90 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 50.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,595 INFO L168 Benchmark]: Boogie Preprocessor took 108.68 ms. Allocated memory is still 96.5 MB. Free memory was 50.2 MB in the beginning and 45.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,596 INFO L168 Benchmark]: RCFGBuilder took 1622.49 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 45.6 MB in the beginning and 72.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,596 INFO L168 Benchmark]: TraceAbstraction took 10757.04 ms. Allocated memory was 119.5 MB in the beginning and 314.6 MB in the end (delta: 195.0 MB). Free memory was 72.0 MB in the beginning and 200.6 MB in the end (delta: -128.5 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,597 INFO L168 Benchmark]: Witness Printer took 168.85 ms. Allocated memory is still 314.6 MB. Free memory was 200.6 MB in the beginning and 185.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:30,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 96.5 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.09 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 55.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.90 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 50.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.68 ms. Allocated memory is still 96.5 MB. Free memory was 50.2 MB in the beginning and 45.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1622.49 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 45.6 MB in the beginning and 72.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10757.04 ms. Allocated memory was 119.5 MB in the beginning and 314.6 MB in the end (delta: 195.0 MB). Free memory was 72.0 MB in the beginning and 200.6 MB in the end (delta: -128.5 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 168.85 ms. Allocated memory is still 314.6 MB. Free memory was 200.6 MB in the beginning and 185.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 558]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((!(a7 == 1) && a17 == 1) || a17 <= 0) || (a16 <= 4 && a8 <= 13)) || ((a20 == 1 && a8 <= 13) && a17 == 1)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a8 <= 13) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((!(a7 == 1) && a17 == 1) || a17 <= 0) || (a16 <= 4 && a8 <= 13)) || ((a20 == 1 && a8 <= 13) && a17 == 1)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a8 <= 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 761 SDtfs, 1112 SDslu, 52 SDs, 0 SdLazy, 3079 SolverSat, 546 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 335 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2886occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1179 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 85 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1148 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1680 NumberOfCodeBlocks, 1680 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1669 ConstructedInterpolants, 0 QuantifiedInterpolants, 748752 SizeOfPredicates, 0 NumberOfNonLiveVariables, 635 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 504/510 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...