./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label17.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_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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 0675521d022a764ecdc1621f141761ef94d4be70 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:31:28,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:28,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:28,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:28,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:28,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:28,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:28,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:28,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:28,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:28,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:28,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:28,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:28,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:28,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:28,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:28,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:28,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:28,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:28,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:28,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:28,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:28,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:28,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:28,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:28,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:28,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:28,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:28,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:28,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:28,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:28,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:28,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:28,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:28,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:28,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:28,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:28,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:28,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:28,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:28,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:28,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:31:28,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:28,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:28,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:28,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:28,814 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:28,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:28,815 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:28,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:28,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:28,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:28,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:31:28,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:31:28,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:31:28,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:28,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:28,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:28,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:31:28,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:28,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:28,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:31:28,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:31:28,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:28,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:31:28,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:31:28,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:28,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:31:28,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:31:28,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:28,821 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_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0675521d022a764ecdc1621f141761ef94d4be70 [2021-10-11 00:31:29,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:29,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:29,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:29,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:29,090 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:29,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem01_label17.c [2021-10-11 00:31:29,181 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/data/9998ed1a3/77af5d0a16c149859876038b46c907e4/FLAG38d32fda7 [2021-10-11 00:31:29,891 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:29,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/sv-benchmarks/c/eca-rers2012/Problem01_label17.c [2021-10-11 00:31:29,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/data/9998ed1a3/77af5d0a16c149859876038b46c907e4/FLAG38d32fda7 [2021-10-11 00:31:30,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/data/9998ed1a3/77af5d0a16c149859876038b46c907e4 [2021-10-11 00:31:30,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:30,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:30,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:30,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:30,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:30,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6a1c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30, skipping insertion in model container [2021-10-11 00:31:30,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:30,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:30,626 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_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/sv-benchmarks/c/eca-rers2012/Problem01_label17.c[19973,19986] [2021-10-11 00:31:30,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:30,688 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:30,806 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_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/sv-benchmarks/c/eca-rers2012/Problem01_label17.c[19973,19986] [2021-10-11 00:31:30,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:30,833 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:30,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30 WrapperNode [2021-10-11 00:31:30,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:30,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:30,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:30,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:30,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:30,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:30,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:30,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:30,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:30,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:31,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:31,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:31,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... [2021-10-11 00:31:31,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:31,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:31,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:31,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:31,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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 00:31:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:31,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:32,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:32,814 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:31:32,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:32 BoogieIcfgContainer [2021-10-11 00:31:32,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:32,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:31:32,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:31:32,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:31:32,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:31:30" (1/3) ... [2021-10-11 00:31:32,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:32, skipping insertion in model container [2021-10-11 00:31:32,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:30" (2/3) ... [2021-10-11 00:31:32,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:32, skipping insertion in model container [2021-10-11 00:31:32,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:32" (3/3) ... [2021-10-11 00:31:32,825 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2021-10-11 00:31:32,839 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:31:32,843 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:31:32,855 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:31:32,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:31:32,882 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:31:32,882 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:31:32,882 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:32,882 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:32,882 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:31:32,882 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:32,882 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:31:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2021-10-11 00:31:32,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-10-11 00:31:32,913 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:32,914 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] [2021-10-11 00:31:32,915 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:32,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:32,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1514784255, now seen corresponding path program 1 times [2021-10-11 00:31:32,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:32,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683719984] [2021-10-11 00:31:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:33,462 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 00:31:33,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683719984] [2021-10-11 00:31:33,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:33,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:33,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952863322] [2021-10-11 00:31:33,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:33,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:33,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:33,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:33,494 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2021-10-11 00:31:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:34,695 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-10-11 00:31:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:34,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2021-10-11 00:31:34,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:34,711 INFO L225 Difference]: With dead ends: 528 [2021-10-11 00:31:34,711 INFO L226 Difference]: Without dead ends: 266 [2021-10-11 00:31:34,715 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 00:31:34,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-11 00:31:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-11 00:31:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-10-11 00:31:34,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-10-11 00:31:34,773 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 116 [2021-10-11 00:31:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:34,774 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-10-11 00:31:34,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-10-11 00:31:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-11 00:31:34,778 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:34,778 INFO L422 BasicCegarLoop]: trace histogram [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 00:31:34,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:31:34,779 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:34,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:34,780 INFO L82 PathProgramCache]: Analyzing trace with hash -558116846, now seen corresponding path program 1 times [2021-10-11 00:31:34,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:34,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977352459] [2021-10-11 00:31:34,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:34,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977352459] [2021-10-11 00:31:34,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:34,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:34,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136586538] [2021-10-11 00:31:34,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:34,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:34,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:34,871 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2021-10-11 00:31:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:35,646 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-10-11 00:31:35,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:35,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2021-10-11 00:31:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:35,664 INFO L225 Difference]: With dead ends: 792 [2021-10-11 00:31:35,664 INFO L226 Difference]: Without dead ends: 528 [2021-10-11 00:31:35,668 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 00:31:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-10-11 00:31:35,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-10-11 00:31:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2021-10-11 00:31:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2021-10-11 00:31:35,704 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 122 [2021-10-11 00:31:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:35,705 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2021-10-11 00:31:35,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2021-10-11 00:31:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-10-11 00:31:35,710 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:35,711 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:35,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:31:35,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:35,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:35,712 INFO L82 PathProgramCache]: Analyzing trace with hash 580615789, now seen corresponding path program 1 times [2021-10-11 00:31:35,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:35,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897607875] [2021-10-11 00:31:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:35,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897607875] [2021-10-11 00:31:35,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:35,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:35,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863083083] [2021-10-11 00:31:35,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:31:35,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:35,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:31:35,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:31:35,878 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 4 states. [2021-10-11 00:31:37,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:37,024 INFO L93 Difference]: Finished difference Result 1316 states and 1742 transitions. [2021-10-11 00:31:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:31:37,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2021-10-11 00:31:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:37,030 INFO L225 Difference]: With dead ends: 1316 [2021-10-11 00:31:37,030 INFO L226 Difference]: Without dead ends: 790 [2021-10-11 00:31:37,031 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 00:31:37,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-10-11 00:31:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-10-11 00:31:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2021-10-11 00:31:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1000 transitions. [2021-10-11 00:31:37,060 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1000 transitions. Word has length 150 [2021-10-11 00:31:37,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:37,061 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 1000 transitions. [2021-10-11 00:31:37,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:31:37,061 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1000 transitions. [2021-10-11 00:31:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-10-11 00:31:37,068 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:37,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:37,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:31:37,069 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:37,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:37,070 INFO L82 PathProgramCache]: Analyzing trace with hash -549977545, now seen corresponding path program 1 times [2021-10-11 00:31:37,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:37,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431810589] [2021-10-11 00:31:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-11 00:31:37,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431810589] [2021-10-11 00:31:37,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:37,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:37,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164455497] [2021-10-11 00:31:37,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:37,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:37,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:37,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:37,168 INFO L87 Difference]: Start difference. First operand 790 states and 1000 transitions. Second operand 3 states. [2021-10-11 00:31:37,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:37,837 INFO L93 Difference]: Finished difference Result 1840 states and 2320 transitions. [2021-10-11 00:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:37,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2021-10-11 00:31:37,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:37,856 INFO L225 Difference]: With dead ends: 1840 [2021-10-11 00:31:37,856 INFO L226 Difference]: Without dead ends: 1052 [2021-10-11 00:31:37,858 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 00:31:37,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-10-11 00:31:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 790. [2021-10-11 00:31:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2021-10-11 00:31:37,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 988 transitions. [2021-10-11 00:31:37,895 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 988 transitions. Word has length 154 [2021-10-11 00:31:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:37,896 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 988 transitions. [2021-10-11 00:31:37,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:37,896 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 988 transitions. [2021-10-11 00:31:37,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-10-11 00:31:37,900 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:37,900 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:37,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:31:37,901 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash 370999919, now seen corresponding path program 1 times [2021-10-11 00:31:37,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:37,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643892742] [2021-10-11 00:31:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-11 00:31:37,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643892742] [2021-10-11 00:31:37,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:37,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:37,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089840889] [2021-10-11 00:31:37,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:31:37,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:37,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:31:37,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:31:37,993 INFO L87 Difference]: Start difference. First operand 790 states and 988 transitions. Second operand 4 states. [2021-10-11 00:31:39,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:39,059 INFO L93 Difference]: Finished difference Result 2495 states and 3096 transitions. [2021-10-11 00:31:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:31:39,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2021-10-11 00:31:39,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:39,068 INFO L225 Difference]: With dead ends: 2495 [2021-10-11 00:31:39,068 INFO L226 Difference]: Without dead ends: 1445 [2021-10-11 00:31:39,070 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 00:31:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-10-11 00:31:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2021-10-11 00:31:39,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2021-10-11 00:31:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1659 transitions. [2021-10-11 00:31:39,110 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1659 transitions. Word has length 158 [2021-10-11 00:31:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:39,111 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1659 transitions. [2021-10-11 00:31:39,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:31:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1659 transitions. [2021-10-11 00:31:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-10-11 00:31:39,115 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:39,115 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:39,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:31:39,116 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:39,116 INFO L82 PathProgramCache]: Analyzing trace with hash 81044173, now seen corresponding path program 1 times [2021-10-11 00:31:39,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:39,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744393212] [2021-10-11 00:31:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-11 00:31:39,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744393212] [2021-10-11 00:31:39,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:39,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:39,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828921396] [2021-10-11 00:31:39,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:39,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:39,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:39,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:39,206 INFO L87 Difference]: Start difference. First operand 1445 states and 1659 transitions. Second operand 3 states. [2021-10-11 00:31:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:39,849 INFO L93 Difference]: Finished difference Result 3412 states and 3894 transitions. [2021-10-11 00:31:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:39,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2021-10-11 00:31:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:39,861 INFO L225 Difference]: With dead ends: 3412 [2021-10-11 00:31:39,862 INFO L226 Difference]: Without dead ends: 1969 [2021-10-11 00:31:39,864 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 00:31:39,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-10-11 00:31:39,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2021-10-11 00:31:39,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2021-10-11 00:31:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1956 transitions. [2021-10-11 00:31:39,920 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1956 transitions. Word has length 167 [2021-10-11 00:31:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:39,921 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1956 transitions. [2021-10-11 00:31:39,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1956 transitions. [2021-10-11 00:31:39,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-11 00:31:39,927 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:39,927 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:39,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:31:39,928 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:39,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash -2035135021, now seen corresponding path program 1 times [2021-10-11 00:31:39,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:39,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095911459] [2021-10-11 00:31:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-11 00:31:40,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095911459] [2021-10-11 00:31:40,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:40,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:40,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682574350] [2021-10-11 00:31:40,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:40,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:40,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:40,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:40,035 INFO L87 Difference]: Start difference. First operand 1707 states and 1956 transitions. Second operand 3 states. [2021-10-11 00:31:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:40,747 INFO L93 Difference]: Finished difference Result 3412 states and 3910 transitions. [2021-10-11 00:31:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:40,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2021-10-11 00:31:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:40,757 INFO L225 Difference]: With dead ends: 3412 [2021-10-11 00:31:40,757 INFO L226 Difference]: Without dead ends: 1707 [2021-10-11 00:31:40,759 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 00:31:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-10-11 00:31:40,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2021-10-11 00:31:40,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2021-10-11 00:31:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1942 transitions. [2021-10-11 00:31:40,799 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1942 transitions. Word has length 183 [2021-10-11 00:31:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:40,799 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1942 transitions. [2021-10-11 00:31:40,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1942 transitions. [2021-10-11 00:31:40,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-10-11 00:31:40,804 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:40,805 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 00:31:40,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:31:40,805 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:40,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:40,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1772117885, now seen corresponding path program 1 times [2021-10-11 00:31:40,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:40,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087877055] [2021-10-11 00:31:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:40,927 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-11 00:31:40,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087877055] [2021-10-11 00:31:40,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305246975] [2021-10-11 00:31:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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 00:31:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:41,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:31:41,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-11 00:31:41,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:31:41,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:31:41,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329385697] [2021-10-11 00:31:41,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:41,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:41,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:41,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:41,616 INFO L87 Difference]: Start difference. First operand 1707 states and 1942 transitions. Second operand 3 states. [2021-10-11 00:31:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:42,312 INFO L93 Difference]: Finished difference Result 3412 states and 3882 transitions. [2021-10-11 00:31:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:42,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2021-10-11 00:31:42,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:42,325 INFO L225 Difference]: With dead ends: 3412 [2021-10-11 00:31:42,325 INFO L226 Difference]: Without dead ends: 1707 [2021-10-11 00:31:42,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 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 00:31:42,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-10-11 00:31:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2021-10-11 00:31:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2021-10-11 00:31:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1751 transitions. [2021-10-11 00:31:42,372 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1751 transitions. Word has length 199 [2021-10-11 00:31:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:42,373 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1751 transitions. [2021-10-11 00:31:42,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1751 transitions. [2021-10-11 00:31:42,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-10-11 00:31:42,378 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:42,379 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:42,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-11 00:31:42,603 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:42,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1410270994, now seen corresponding path program 1 times [2021-10-11 00:31:42,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:42,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161938602] [2021-10-11 00:31:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-11 00:31:42,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161938602] [2021-10-11 00:31:42,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551667409] [2021-10-11 00:31:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/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 00:31:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:42,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:31:42,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-11 00:31:43,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:31:43,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:31:43,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590671571] [2021-10-11 00:31:43,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:43,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:43,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:43,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:43,350 INFO L87 Difference]: Start difference. First operand 1576 states and 1751 transitions. Second operand 3 states. [2021-10-11 00:31:44,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:44,007 INFO L93 Difference]: Finished difference Result 3541 states and 3926 transitions. [2021-10-11 00:31:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:44,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2021-10-11 00:31:44,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:44,013 INFO L225 Difference]: With dead ends: 3541 [2021-10-11 00:31:44,013 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:31:44,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 204 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 00:31:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:31:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:31:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:31:44,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:31:44,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 205 [2021-10-11 00:31:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:44,020 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:44,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:31:44,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:31:44,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:44,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:31:44,451 INFO L262 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2021-10-11 00:31:44,453 INFO L262 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2021-10-11 00:31:44,453 INFO L262 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2021-10-11 00:31:44,453 INFO L262 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2021-10-11 00:31:44,453 INFO L262 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2021-10-11 00:31:44,453 INFO L262 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-10-11 00:31:44,454 INFO L262 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2021-10-11 00:31:44,456 INFO L262 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-10-11 00:31:44,456 INFO L262 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,456 INFO L262 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,456 INFO L262 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-10-11 00:31:44,457 INFO L262 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-10-11 00:31:44,458 INFO L262 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,459 INFO L262 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-10-11 00:31:44,460 INFO L262 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,461 INFO L262 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2021-10-11 00:31:44,462 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,463 INFO L262 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2021-10-11 00:31:44,464 INFO L262 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,465 INFO L262 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2021-10-11 00:31:44,466 INFO L262 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-10-11 00:31:44,467 INFO L262 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,468 INFO L262 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2021-10-11 00:31:44,469 INFO L262 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2021-10-11 00:31:44,470 INFO L262 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2021-10-11 00:31:44,470 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2021-10-11 00:31:44,470 INFO L262 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-10-11 00:31:44,470 INFO L258 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a20~0 1)) (.cse5 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5)) (.cse4 (<= ~a17~0 0)) (.cse2 (not (= ~a7~0 1))) (.cse7 (<= 15 ~a8~0)) (.cse3 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= ~a16~0 4) .cse1 .cse3) (and .cse0 .cse4 .cse1) (and .cse4 .cse1 .cse5) (and .cse6 .cse3 .cse5) (and .cse6 .cse4) (and .cse4 .cse7) (and .cse2 .cse7 .cse3))) [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2021-10-11 00:31:44,471 INFO L262 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-10-11 00:31:44,472 INFO L262 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L265 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,473 INFO L262 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2021-10-11 00:31:44,474 INFO L262 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,475 INFO L262 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2021-10-11 00:31:44,476 INFO L262 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-10-11 00:31:44,477 INFO L262 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-10-11 00:31:44,478 INFO L262 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,478 INFO L258 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a20~0 1)) (.cse5 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5)) (.cse4 (<= ~a17~0 0)) (.cse2 (not (= ~a7~0 1))) (.cse7 (<= 15 ~a8~0)) (.cse3 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= ~a16~0 4) .cse1 .cse3) (and .cse0 .cse4 .cse1) (and .cse4 .cse1 .cse5) (and .cse6 .cse3 .cse5) (and .cse6 .cse4) (and .cse4 .cse7) (and .cse2 .cse7 .cse3))) [2021-10-11 00:31:44,478 INFO L262 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,478 INFO L262 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,478 INFO L262 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,478 INFO L262 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 534) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2021-10-11 00:31:44,479 INFO L262 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,480 INFO L262 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:31:44,481 INFO L262 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-10-11 00:31:44,481 INFO L262 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-10-11 00:31:44,481 INFO L262 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-10-11 00:31:44,481 INFO L262 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-10-11 00:31:44,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:31:44 BoogieIcfgContainer [2021-10-11 00:31:44,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:31:44,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:44,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:44,501 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:44,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:32" (3/4) ... [2021-10-11 00:31:44,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:31:44,524 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:31:44,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:31:44,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:31:44,528 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:31:44,696 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4af0e9-c70b-42cf-a4a5-04de2c304e22/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:31:44,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:44,698 INFO L168 Benchmark]: Toolchain (without parser) took 14571.33 ms. Allocated memory was 136.3 MB in the beginning and 255.9 MB in the end (delta: 119.5 MB). Free memory was 100.9 MB in the beginning and 100.1 MB in the end (delta: 743.4 kB). Peak memory consumption was 119.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,698 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 75.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:44,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.00 ms. Allocated memory is still 136.3 MB. Free memory was 100.6 MB in the beginning and 95.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.44 ms. Allocated memory is still 136.3 MB. Free memory was 95.3 MB in the beginning and 89.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,700 INFO L168 Benchmark]: Boogie Preprocessor took 88.49 ms. Allocated memory is still 136.3 MB. Free memory was 89.9 MB in the beginning and 85.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,701 INFO L168 Benchmark]: RCFGBuilder took 1789.64 ms. Allocated memory was 136.3 MB in the beginning and 176.2 MB in the end (delta: 39.8 MB). Free memory was 85.0 MB in the beginning and 138.1 MB in the end (delta: -53.1 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,701 INFO L168 Benchmark]: TraceAbstraction took 11681.63 ms. Allocated memory was 176.2 MB in the beginning and 255.9 MB in the end (delta: 79.7 MB). Free memory was 138.1 MB in the beginning and 114.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 105.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,702 INFO L168 Benchmark]: Witness Printer took 196.16 ms. Allocated memory is still 255.9 MB. Free memory was 114.8 MB in the beginning and 100.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:44,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 75.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 707.00 ms. Allocated memory is still 136.3 MB. Free memory was 100.6 MB in the beginning and 95.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.44 ms. Allocated memory is still 136.3 MB. Free memory was 95.3 MB in the beginning and 89.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.49 ms. Allocated memory is still 136.3 MB. Free memory was 89.9 MB in the beginning and 85.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1789.64 ms. Allocated memory was 136.3 MB in the beginning and 176.2 MB in the end (delta: 39.8 MB). Free memory was 85.0 MB in the beginning and 138.1 MB in the end (delta: -53.1 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11681.63 ms. Allocated memory was 176.2 MB in the beginning and 255.9 MB in the end (delta: 79.7 MB). Free memory was 138.1 MB in the beginning and 114.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 105.1 MB. Max. memory is 16.1 GB. * Witness Printer took 196.16 ms. Allocated memory is still 255.9 MB. Free memory was 114.8 MB in the beginning and 100.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 534]: 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: (((((((((a21 == 1 && a20 == 1) && !(a7 == 1)) && a17 == 1) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a21 == 1 && a17 <= 0) && a20 == 1)) || ((a17 <= 0 && a20 == 1) && a8 <= 13)) || ((a16 <= 5 && a17 == 1) && a8 <= 13)) || (a16 <= 5 && a17 <= 0)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((a21 == 1 && a20 == 1) && !(a7 == 1)) && a17 == 1) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a21 == 1 && a17 <= 0) && a20 == 1)) || ((a17 <= 0 && a20 == 1) && a8 <= 13)) || ((a16 <= 5 && a17 == 1) && a8 <= 13)) || (a16 <= 5 && a17 <= 0)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 613 SDtfs, 1246 SDslu, 57 SDs, 0 SdLazy, 3383 SolverSat, 607 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 655 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 167 HoareAnnotationTreeSize, 3 FomulaSimplifications, 680 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1858 NumberOfCodeBlocks, 1858 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1847 ConstructedInterpolants, 0 QuantifiedInterpolants, 627278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 816 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 924/930 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...