./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ --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 3ab0e6b3adccdafccbf4f7749fddf566a909e7e6b26ed4ad49012db1c4c97a10 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:42:46,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:42:46,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:42:46,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:42:46,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:42:46,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:42:46,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:42:46,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:42:46,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:42:46,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:42:46,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:42:46,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:42:46,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:42:46,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:42:46,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:42:46,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:42:46,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:42:46,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:42:46,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:42:46,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:42:46,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:42:46,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:42:46,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:42:46,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:42:46,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:42:46,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:42:46,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:42:46,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:42:46,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:42:46,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:42:46,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:42:46,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:42:46,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:42:46,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:42:46,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:42:46,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:42:46,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:42:46,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:42:46,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:42:46,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:42:46,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:42:46,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:42:46,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:42:46,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:42:46,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:42:46,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:42:46,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:42:46,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:42:46,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:42:46,636 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:42:46,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:42:46,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:42:46,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:42:46,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:42:46,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:42:46,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:42:46,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:42:46,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:42:46,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:42:46,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:42:46,638 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:42:46,638 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:42:46,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:42:46,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:46,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:42:46,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:42:46,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:42:46,640 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:42:46,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:42:46,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:42:46,640 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_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ab0e6b3adccdafccbf4f7749fddf566a909e7e6b26ed4ad49012db1c4c97a10 [2021-11-23 01:42:46,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:42:46,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:42:46,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:42:46,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:42:46,962 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:42:46,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/heap-manipulation/tree-3.i [2021-11-23 01:42:47,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/data/bd127a300/a43484d7970f41918411ab9b520a0850/FLAG74ef314c2 [2021-11-23 01:42:47,609 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:42:47,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/sv-benchmarks/c/heap-manipulation/tree-3.i [2021-11-23 01:42:47,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/data/bd127a300/a43484d7970f41918411ab9b520a0850/FLAG74ef314c2 [2021-11-23 01:42:47,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/data/bd127a300/a43484d7970f41918411ab9b520a0850 [2021-11-23 01:42:47,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:42:47,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:42:47,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:47,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:42:47,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:42:47,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:47" (1/1) ... [2021-11-23 01:42:47,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ffb43c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:47, skipping insertion in model container [2021-11-23 01:42:47,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:47" (1/1) ... [2021-11-23 01:42:47,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:42:47,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:42:48,261 WARN L230 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_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/sv-benchmarks/c/heap-manipulation/tree-3.i[22626,22639] [2021-11-23 01:42:48,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:48,323 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:42:48,390 WARN L230 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_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/sv-benchmarks/c/heap-manipulation/tree-3.i[22626,22639] [2021-11-23 01:42:48,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:48,445 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:42:48,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48 WrapperNode [2021-11-23 01:42:48,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:48,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:48,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:42:48,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:42:48,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,534 INFO L137 Inliner]: procedures = 122, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2021-11-23 01:42:48,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:48,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:42:48,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:42:48,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:42:48,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:42:48,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:42:48,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:42:48,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:42:48,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48" (1/1) ... [2021-11-23 01:42:48,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:42:48,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:42:48,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d11dfcaa-84d1-4d9f-ad04-b678b3ccbbfc/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 01:42:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 01:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:42:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:42:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:42:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:42:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:42:48,860 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:42:48,862 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:42:49,150 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:42:49,282 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:42:49,283 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 01:42:49,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:49 BoogieIcfgContainer [2021-11-23 01:42:49,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:42:49,287 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:42:49,287 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:42:49,299 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:42:49,300 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:49" (1/1) ... [2021-11-23 01:42:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:42:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2021-11-23 01:42:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-11-23 01:42:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:42:49,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:49,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:49,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2021-11-23 01:42:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-11-23 01:42:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:42:49,576 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:49,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:49,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:49,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2021-11-23 01:42:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2021-11-23 01:42:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:42:49,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:49,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:50,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2021-11-23 01:42:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2021-11-23 01:42:50,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:42:50,225 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:50,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:42:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2021-11-23 01:42:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2021-11-23 01:42:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:42:50,452 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:50,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 47 transitions. [2021-11-23 01:42:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2021-11-23 01:42:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:42:50,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:50,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:52,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 42 states and 72 transitions. [2021-11-23 01:42:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2021-11-23 01:42:52,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:42:52,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:52,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 50 states and 96 transitions. [2021-11-23 01:42:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 96 transitions. [2021-11-23 01:42:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:42:54,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:54,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:55,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 51 states and 96 transitions. [2021-11-23 01:42:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2021-11-23 01:42:55,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:42:55,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:55,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:55,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 55 states and 104 transitions. [2021-11-23 01:42:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 104 transitions. [2021-11-23 01:42:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:42:56,854 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:56,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 56 states and 108 transitions. [2021-11-23 01:42:58,031 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2021-11-23 01:42:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:42:58,034 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:58,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 58 states and 127 transitions. [2021-11-23 01:43:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 127 transitions. [2021-11-23 01:43:01,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:43:01,232 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:01,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 65 states and 158 transitions. [2021-11-23 01:43:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 158 transitions. [2021-11-23 01:43:06,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:43:06,996 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:06,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:07,489 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 69 states and 187 transitions. [2021-11-23 01:43:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 187 transitions. [2021-11-23 01:43:10,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:43:10,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:10,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 72 states and 190 transitions. [2021-11-23 01:43:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 190 transitions. [2021-11-23 01:43:11,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:43:11,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:11,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:15,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:15,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 77 states and 209 transitions. [2021-11-23 01:43:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 209 transitions. [2021-11-23 01:43:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:43:15,707 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:15,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 78 states and 214 transitions. [2021-11-23 01:43:16,943 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 214 transitions. [2021-11-23 01:43:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:43:16,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:16,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 81 states and 232 transitions. [2021-11-23 01:43:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 232 transitions. [2021-11-23 01:43:23,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:43:23,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:23,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 82 states and 246 transitions. [2021-11-23 01:43:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 246 transitions. [2021-11-23 01:43:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:43:25,099 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:25,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 85 states and 280 transitions. [2021-11-23 01:43:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 280 transitions. [2021-11-23 01:43:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:43:33,318 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:33,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:35,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 86 states and 284 transitions. [2021-11-23 01:43:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 284 transitions. [2021-11-23 01:43:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:43:35,326 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:35,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 98 states and 319 transitions. [2021-11-23 01:43:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 319 transitions. [2021-11-23 01:43:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:43:42,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:42,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 103 states and 336 transitions. [2021-11-23 01:43:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 336 transitions. [2021-11-23 01:43:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:43:50,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:50,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:43:59,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 105 states and 359 transitions. [2021-11-23 01:43:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 359 transitions. [2021-11-23 01:43:59,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:43:59,892 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:59,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 107 states and 377 transitions. [2021-11-23 01:44:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 377 transitions. [2021-11-23 01:44:09,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:44:09,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:09,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:44:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 108 states and 380 transitions. [2021-11-23 01:44:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 380 transitions. [2021-11-23 01:44:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:44:12,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:12,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 110 states and 433 transitions. [2021-11-23 01:44:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 433 transitions. [2021-11-23 01:44:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:44:19,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:19,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:21,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:44:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 111 states and 451 transitions. [2021-11-23 01:44:24,394 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 451 transitions. [2021-11-23 01:44:24,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:44:24,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:24,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 113 states and 470 transitions. [2021-11-23 01:44:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 470 transitions. [2021-11-23 01:44:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:44:30,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:30,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:31,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:31,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 116 states and 473 transitions. [2021-11-23 01:44:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 473 transitions. [2021-11-23 01:44:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:44:31,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:31,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 117 states and 475 transitions. [2021-11-23 01:44:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 475 transitions. [2021-11-23 01:44:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:44:32,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:32,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:48,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 124 states and 513 transitions. [2021-11-23 01:44:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 513 transitions. [2021-11-23 01:44:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:44:48,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:48,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:45:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 131 states and 570 transitions. [2021-11-23 01:45:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 570 transitions. [2021-11-23 01:45:08,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:45:08,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:08,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:45:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 136 states and 684 transitions. [2021-11-23 01:45:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 684 transitions. [2021-11-23 01:45:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:45:32,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:32,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:34,488 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:45:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:39,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 138 states and 707 transitions. [2021-11-23 01:45:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 707 transitions. [2021-11-23 01:45:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:45:39,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:39,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:45:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:45:46,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 139 states and 754 transitions. [2021-11-23 01:45:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 754 transitions. [2021-11-23 01:45:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:45:46,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:45:46,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:45:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:45:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 147 states and 794 transitions. [2021-11-23 01:46:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 794 transitions. [2021-11-23 01:46:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:46:05,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:05,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:46:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 148 states and 796 transitions. [2021-11-23 01:46:07,057 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 796 transitions. [2021-11-23 01:46:07,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:46:07,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:07,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:32,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 156 states and 843 transitions. [2021-11-23 01:46:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 843 transitions. [2021-11-23 01:46:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:46:32,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:32,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:43,794 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 24 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:21,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 168 states and 1018 transitions. [2021-11-23 01:47:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 1018 transitions. [2021-11-23 01:47:21,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:47:21,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:21,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 24 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 169 states and 1033 transitions. [2021-11-23 01:47:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 1033 transitions. [2021-11-23 01:47:30,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:47:30,122 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:30,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 24 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 171 states and 1075 transitions. [2021-11-23 01:47:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 1075 transitions. [2021-11-23 01:47:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:47:42,551 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:42,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:47:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 177 states and 1088 transitions. [2021-11-23 01:47:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 1088 transitions. [2021-11-23 01:47:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:47:53,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:53,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat