./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5878b7d2af5fd4b66050c0dbed52215fb6ea8477622dc26391a98be7bc7f1ca --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 21:57:09,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 21:57:09,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 21:57:09,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 21:57:09,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 21:57:09,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 21:57:09,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 21:57:09,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 21:57:09,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 21:57:09,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 21:57:09,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 21:57:09,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 21:57:09,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 21:57:09,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 21:57:09,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 21:57:09,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 21:57:09,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 21:57:09,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 21:57:09,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 21:57:09,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 21:57:09,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 21:57:09,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 21:57:09,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 21:57:09,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 21:57:09,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 21:57:09,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 21:57:09,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 21:57:09,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 21:57:09,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 21:57:09,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 21:57:09,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 21:57:09,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 21:57:09,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 21:57:09,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 21:57:09,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 21:57:09,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 21:57:09,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 21:57:09,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 21:57:09,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 21:57:09,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 21:57:09,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 21:57:09,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 21:57:09,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 21:57:09,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 21:57:09,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 21:57:09,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 21:57:09,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 21:57:09,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 21:57:09,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 21:57:09,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 21:57:09,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 21:57:09,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 21:57:09,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 21:57:09,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 21:57:09,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 21:57:09,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 21:57:09,929 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 21:57:09,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 21:57:09,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 21:57:09,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 21:57:09,930 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 21:57:09,930 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 21:57:09,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 21:57:09,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:57:09,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 21:57:09,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 21:57:09,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 21:57:09,932 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 21:57:09,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 21:57:09,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 21:57:09,933 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_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5878b7d2af5fd4b66050c0dbed52215fb6ea8477622dc26391a98be7bc7f1ca [2021-11-13 21:57:10,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 21:57:10,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 21:57:10,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 21:57:10,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 21:57:10,282 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 21:57:10,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2021-11-13 21:57:10,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/data/2de0718f0/61108136921a4f4f9a7f943c0e903600/FLAG5c0941cbc [2021-11-13 21:57:10,916 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 21:57:10,916 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2021-11-13 21:57:10,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/data/2de0718f0/61108136921a4f4f9a7f943c0e903600/FLAG5c0941cbc [2021-11-13 21:57:11,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/data/2de0718f0/61108136921a4f4f9a7f943c0e903600 [2021-11-13 21:57:11,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 21:57:11,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 21:57:11,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 21:57:11,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 21:57:11,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 21:57:11,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dff7b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11, skipping insertion in model container [2021-11-13 21:57:11,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 21:57:11,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 21:57:11,520 WARN L228 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_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c[6117,6130] [2021-11-13 21:57:11,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:57:11,534 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 21:57:11,575 WARN L228 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_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c[6117,6130] [2021-11-13 21:57:11,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:57:11,592 INFO L208 MainTranslator]: Completed translation [2021-11-13 21:57:11,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11 WrapperNode [2021-11-13 21:57:11,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 21:57:11,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 21:57:11,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 21:57:11,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 21:57:11,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 21:57:11,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 21:57:11,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 21:57:11,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 21:57:11,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 21:57:11,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 21:57:11,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 21:57:11,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 21:57:11,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:57:11" (1/1) ... [2021-11-13 21:57:11,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:57:11,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/z3 [2021-11-13 21:57:11,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 21:57:11,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf4fa1c-5add-4a03-8b2b-d65348df8f6c/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 21:57:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 21:57:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 21:57:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 21:57:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 21:57:12,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 21:57:12,548 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 21:57:12,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:57:12 BoogieIcfgContainer [2021-11-13 21:57:12,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 21:57:12,552 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 21:57:12,553 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 21:57:12,567 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 21:57:12,567 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:57:12" (1/1) ... [2021-11-13 21:57:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:57:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-11-13 21:57:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-13 21:57:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 21:57:12,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:12,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2021-11-13 21:57:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2021-11-13 21:57:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 21:57:13,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:13,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-11-13 21:57:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-11-13 21:57:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 21:57:13,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:13,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:14,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-11-13 21:57:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-11-13 21:57:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 21:57:14,321 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:14,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:14,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2021-11-13 21:57:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2021-11-13 21:57:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 21:57:14,781 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:14,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:18,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions. [2021-11-13 21:57:18,764 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2021-11-13 21:57:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 21:57:18,766 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:18,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 42 states and 74 transitions. [2021-11-13 21:57:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 74 transitions. [2021-11-13 21:57:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 21:57:23,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:23,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:26,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:26,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 50 states and 85 transitions. [2021-11-13 21:57:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 85 transitions. [2021-11-13 21:57:26,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 21:57:26,375 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:26,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 67 states and 121 transitions. [2021-11-13 21:57:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 121 transitions. [2021-11-13 21:57:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:57:33,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:33,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 77 states and 152 transitions. [2021-11-13 21:57:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 152 transitions. [2021-11-13 21:57:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:57:39,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:39,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 78 states and 156 transitions. [2021-11-13 21:57:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 156 transitions. [2021-11-13 21:57:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:57:40,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:40,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:57:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:57:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 86 states and 175 transitions. [2021-11-13 21:57:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 175 transitions. [2021-11-13 21:57:46,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 21:57:46,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:57:46,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:57:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:57:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 110 states and 235 transitions. [2021-11-13 21:58:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 235 transitions. [2021-11-13 21:58:13,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 21:58:13,630 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:13,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 111 states and 240 transitions. [2021-11-13 21:58:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 240 transitions. [2021-11-13 21:58:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 21:58:17,096 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:17,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 113 states and 247 transitions. [2021-11-13 21:58:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 247 transitions. [2021-11-13 21:58:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 21:58:20,091 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:20,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:23,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 114 states and 253 transitions. [2021-11-13 21:58:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 253 transitions. [2021-11-13 21:58:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:58:23,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:23,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:35,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 129 states and 281 transitions. [2021-11-13 21:58:35,860 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 281 transitions. [2021-11-13 21:58:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:58:35,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:35,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 136 states and 290 transitions. [2021-11-13 21:58:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 290 transitions. [2021-11-13 21:58:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:58:40,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:40,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:59:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:59:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 161 states and 351 transitions. [2021-11-13 21:59:22,335 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 351 transitions. [2021-11-13 21:59:22,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:59:22,336 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:59:22,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:59:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:59:26,052 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:59:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:59:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 169 states and 365 transitions. [2021-11-13 21:59:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 365 transitions. [2021-11-13 21:59:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:59:34,273 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:59:34,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:59:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:59:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:59:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:59:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 177 states and 375 transitions. [2021-11-13 21:59:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 375 transitions. [2021-11-13 21:59:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 21:59:44,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:59:44,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:59:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:59:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:00:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:00:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 193 states and 422 transitions. [2021-11-13 22:00:00,371 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 422 transitions. [2021-11-13 22:00:00,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 22:00:00,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:00:00,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:00:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:00:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:00:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:00:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 199 states and 430 transitions. [2021-11-13 22:00:07,112 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 430 transitions. [2021-11-13 22:00:07,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 22:00:07,113 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:00:07,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:00:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:00:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:00:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:00:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 205 states and 438 transitions. [2021-11-13 22:00:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 438 transitions. [2021-11-13 22:00:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:00:15,913 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:00:15,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:00:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:00:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:00:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:00:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 222 states and 487 transitions. [2021-11-13 22:00:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 487 transitions. [2021-11-13 22:00:42,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:00:42,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:00:42,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:00:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:00:44,461 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:00:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:00:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 228 states and 498 transitions. [2021-11-13 22:00:51,499 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 498 transitions. [2021-11-13 22:00:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:00:51,500 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:00:51,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:00:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:00:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:01:08,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:01:08,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 241 states and 523 transitions. [2021-11-13 22:01:08,617 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 523 transitions. [2021-11-13 22:01:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:01:08,618 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:01:08,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:01:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:01:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:01:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:01:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 247 states and 537 transitions. [2021-11-13 22:01:15,089 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 537 transitions. [2021-11-13 22:01:15,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:01:15,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:01:15,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:01:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:01:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:01:22,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:01:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 253 states and 551 transitions. [2021-11-13 22:01:22,270 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 551 transitions. [2021-11-13 22:01:22,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:01:22,271 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:01:22,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:01:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:01:22,428 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:01:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:01:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 254 states and 554 transitions. [2021-11-13 22:01:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 554 transitions. [2021-11-13 22:01:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:01:24,302 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:01:24,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:01:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:01:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:01:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:01:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 255 states and 556 transitions. [2021-11-13 22:01:26,563 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 556 transitions. [2021-11-13 22:01:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:01:26,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:01:26,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:01:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:01:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:01:37,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:01:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 264 states and 572 transitions. [2021-11-13 22:01:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 572 transitions. [2021-11-13 22:01:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 22:01:37,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:01:37,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:01:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:02:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:03:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:03:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 305 states and 706 transitions. [2021-11-13 22:03:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 706 transitions. [2021-11-13 22:03:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 22:03:57,333 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:03:57,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:03:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:04:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:04:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:04:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 321 states and 760 transitions. [2021-11-13 22:04:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 760 transitions. [2021-11-13 22:04:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 22:04:34,208 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:04:34,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:04:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:04:43,462 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:04:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:04:49,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 324 states and 775 transitions. [2021-11-13 22:04:49,883 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 775 transitions. [2021-11-13 22:04:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 22:04:49,883 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:04:49,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:04:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:04:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:05:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:05:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 325 states and 788 transitions. [2021-11-13 22:05:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 788 transitions. [2021-11-13 22:05:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-13 22:05:02,701 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:05:02,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:05:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:06:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 2 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:09:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:09:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 359 states and 871 transitions. [2021-11-13 22:09:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 871 transitions. [2021-11-13 22:09:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-13 22:09:13,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:09:13,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:09:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:09:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 2 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.