./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c --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_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/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_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/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_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/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 ad40c7e9e7b0c80b1cec1e361a82d834fdd8270143479aa0f4bf8bc2b59c2aa5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:49:44,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:49:44,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:49:44,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:49:44,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:49:44,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:49:44,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:49:44,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:49:44,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:49:44,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:49:44,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:49:44,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:49:44,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:49:44,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:49:44,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:49:44,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:49:44,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:49:44,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:49:44,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:49:44,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:49:44,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:49:44,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:49:44,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:49:44,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:49:44,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:49:44,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:49:44,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:49:44,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:49:44,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:49:44,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:49:44,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:49:44,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:49:44,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:49:44,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:49:44,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:49:44,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:49:44,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:49:44,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:49:44,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:49:44,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:49:44,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:49:44,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:49:44,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:49:44,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:49:44,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:49:44,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:49:44,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:49:44,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:49:44,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:49:44,631 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:49:44,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:49:44,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:49:44,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:49:44,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:49:44,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:49:44,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:49:44,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:49:44,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:49:44,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:49:44,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:49:44,635 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:49:44,635 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:49:44,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:49:44,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:49:44,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:49:44,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:49:44,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:49:44,637 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:49:44,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:49:44,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:49:44,638 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_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad40c7e9e7b0c80b1cec1e361a82d834fdd8270143479aa0f4bf8bc2b59c2aa5 [2021-11-23 01:49:44,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:49:45,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:49:45,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:49:45,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:49:45,019 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:49:45,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c [2021-11-23 01:49:45,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/data/5eef757d3/60c3c06809cc436793f741815a88a651/FLAGcc600927e [2021-11-23 01:49:45,623 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:49:45,626 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c [2021-11-23 01:49:45,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/data/5eef757d3/60c3c06809cc436793f741815a88a651/FLAGcc600927e [2021-11-23 01:49:45,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/data/5eef757d3/60c3c06809cc436793f741815a88a651 [2021-11-23 01:49:45,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:49:45,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:49:45,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:49:45,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:49:45,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:49:45,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:45" (1/1) ... [2021-11-23 01:49:45,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f497eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:45, skipping insertion in model container [2021-11-23 01:49:45,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:45" (1/1) ... [2021-11-23 01:49:45,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:49:46,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:49:46,203 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_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c[588,601] [2021-11-23 01:49:46,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:49:46,232 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:49:46,245 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_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c[588,601] [2021-11-23 01:49:46,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:49:46,269 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:49:46,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46 WrapperNode [2021-11-23 01:49:46,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:49:46,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:49:46,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:49:46,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:49:46,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,328 INFO L137 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 01:49:46,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:49:46,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:49:46,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:49:46,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:49:46,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:49:46,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:49:46,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:49:46,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:49:46,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:49:46,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:49:46,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:49:46,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:49:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:49:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:49:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:49:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:49:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:49:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:49:46,514 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:49:46,517 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:49:46,726 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:49:46,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:49:46,763 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:49:46,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:46 BoogieIcfgContainer [2021-11-23 01:49:46,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:49:46,766 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:49:46,767 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:49:46,777 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:49:46,778 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:46" (1/1) ... [2021-11-23 01:49:46,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:49:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 01:49:46,849 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 01:49:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:49:46,854 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:46,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:47,209 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 01:49:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 46 transitions. [2021-11-23 01:49:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 46 transitions. [2021-11-23 01:49:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:49:47,492 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:47,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:47,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:49:47,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:47,699 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 01:49:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 29 states and 52 transitions. [2021-11-23 01:49:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2021-11-23 01:49:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:49:47,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:47,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:47,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:49:47,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:49:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 61 transitions. [2021-11-23 01:49:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2021-11-23 01:49:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:49:48,388 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:48,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:48,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:49:48,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:49:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:48,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 66 transitions. [2021-11-23 01:49:48,868 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2021-11-23 01:49:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:49:48,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:48,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:48,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:49:48,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:49:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:49,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 69 transitions. [2021-11-23 01:49:49,125 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2021-11-23 01:49:49,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:49:49,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:49,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:49,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:49:49,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:49:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 66 transitions. [2021-11-23 01:49:49,914 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2021-11-23 01:49:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:49:49,915 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:49,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:49,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:49:49,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 01:49:50,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 44 states and 81 transitions. [2021-11-23 01:49:50,762 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 81 transitions. [2021-11-23 01:49:50,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:49:50,763 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:50,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:50,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:49:50,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:49:51,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:51,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 88 transitions. [2021-11-23 01:49:51,614 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2021-11-23 01:49:51,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:49:51,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:51,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:51,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:49:51,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:51,817 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:49:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 52 states and 96 transitions. [2021-11-23 01:49:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2021-11-23 01:49:52,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:49:52,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:52,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:52,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:49:52,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:49:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 53 states and 98 transitions. [2021-11-23 01:49:53,376 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 98 transitions. [2021-11-23 01:49:53,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 01:49:53,378 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:53,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:53,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:49:53,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:49:54,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 54 states and 101 transitions. [2021-11-23 01:49:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2021-11-23 01:49:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 01:49:54,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:54,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:54,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:49:54,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-23 01:49:54,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 54 states and 100 transitions. [2021-11-23 01:49:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2021-11-23 01:49:54,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 01:49:54,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:54,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:54,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:49:54,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:55,141 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:49:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:49:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:56,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 57 states and 106 transitions. [2021-11-23 01:49:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 106 transitions. [2021-11-23 01:49:56,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 01:49:56,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:56,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:56,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:49:56,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:49:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 60 states and 112 transitions. [2021-11-23 01:49:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2021-11-23 01:49:57,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:49:57,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:57,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:57,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:49:57,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:49:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 61 states and 115 transitions. [2021-11-23 01:49:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 115 transitions. [2021-11-23 01:49:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 01:49:58,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:58,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:58,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:49:58,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:59,087 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:50:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 65 states and 122 transitions. [2021-11-23 01:50:00,006 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 122 transitions. [2021-11-23 01:50:00,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 01:50:00,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:00,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:00,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:50:00,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:50:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 67 states and 127 transitions. [2021-11-23 01:50:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 127 transitions. [2021-11-23 01:50:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 01:50:01,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:01,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:01,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:50:01,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 26 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:50:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 68 states and 129 transitions. [2021-11-23 01:50:02,377 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 129 transitions. [2021-11-23 01:50:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 01:50:02,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:02,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:02,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:50:02,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-11-23 01:50:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 70 states and 132 transitions. [2021-11-23 01:50:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 132 transitions. [2021-11-23 01:50:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 01:50:03,529 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:03,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:03,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:50:03,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-23 01:50:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 71 states and 135 transitions. [2021-11-23 01:50:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 135 transitions. [2021-11-23 01:50:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 01:50:04,275 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:04,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:04,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:50:04,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-23 01:50:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 73 states and 138 transitions. [2021-11-23 01:50:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 138 transitions. [2021-11-23 01:50:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 01:50:05,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:05,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:05,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:50:05,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-23 01:50:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:06,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 73 states and 137 transitions. [2021-11-23 01:50:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2021-11-23 01:50:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 01:50:06,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:06,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:06,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 01:50:06,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:50:08,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 76 states and 143 transitions. [2021-11-23 01:50:08,869 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 143 transitions. [2021-11-23 01:50:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 01:50:08,871 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:08,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:08,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:50:08,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 32 proven. 30 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:50:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 79 states and 149 transitions. [2021-11-23 01:50:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 149 transitions. [2021-11-23 01:50:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 01:50:10,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:10,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:10,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:50:10,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:50:12,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 80 states and 152 transitions. [2021-11-23 01:50:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 152 transitions. [2021-11-23 01:50:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 01:50:12,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:12,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:12,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 01:50:12,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 34 proven. 33 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:50:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 84 states and 159 transitions. [2021-11-23 01:50:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 159 transitions. [2021-11-23 01:50:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 01:50:14,569 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:14,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:14,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:50:14,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:50:16,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 86 states and 163 transitions. [2021-11-23 01:50:16,808 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 163 transitions. [2021-11-23 01:50:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 01:50:16,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:16,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:16,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:50:16,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:50:18,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 87 states and 165 transitions. [2021-11-23 01:50:18,462 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 165 transitions. [2021-11-23 01:50:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-23 01:50:18,463 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:18,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:18,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:50:18,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 38 proven. 39 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 01:50:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 88 states and 168 transitions. [2021-11-23 01:50:19,471 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 168 transitions. [2021-11-23 01:50:19,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 01:50:19,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:19,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:19,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:50:19,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:19,735 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 99 proven. 13 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2021-11-23 01:50:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:20,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 88 states and 167 transitions. [2021-11-23 01:50:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 167 transitions. [2021-11-23 01:50:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 01:50:20,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:20,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:20,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:50:20,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:50:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 91 states and 173 transitions. [2021-11-23 01:50:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 173 transitions. [2021-11-23 01:50:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 01:50:23,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:23,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:23,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:50:23,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:50:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:25,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 94 states and 179 transitions. [2021-11-23 01:50:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2021-11-23 01:50:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 01:50:25,825 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:25,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:25,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:50:25,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 44 proven. 42 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:50:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 95 states and 182 transitions. [2021-11-23 01:50:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 182 transitions. [2021-11-23 01:50:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 01:50:28,977 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:28,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:29,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:50:29,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 44 proven. 58 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:50:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 99 states and 189 transitions. [2021-11-23 01:50:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 189 transitions. [2021-11-23 01:50:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 01:50:31,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:31,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:32,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:50:32,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 46 proven. 42 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:50:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:35,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 101 states and 193 transitions. [2021-11-23 01:50:35,375 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 193 transitions. [2021-11-23 01:50:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 01:50:35,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:35,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:35,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 01:50:35,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 46 proven. 62 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:50:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 102 states and 196 transitions. [2021-11-23 01:50:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 196 transitions. [2021-11-23 01:50:37,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 01:50:37,973 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:37,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:38,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:50:38,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 48 proven. 66 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-23 01:50:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 104 states and 201 transitions. [2021-11-23 01:50:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 201 transitions. [2021-11-23 01:50:39,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 01:50:39,816 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:39,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:39,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:50:39,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 129 proven. 13 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2021-11-23 01:50:40,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:40,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 104 states and 200 transitions. [2021-11-23 01:50:40,566 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 200 transitions. [2021-11-23 01:50:40,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 01:50:40,567 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:40,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:40,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:50:40,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 52 proven. 70 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-23 01:50:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:45,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 107 states and 206 transitions. [2021-11-23 01:50:45,186 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 206 transitions. [2021-11-23 01:50:45,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-23 01:50:45,187 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:45,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:45,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:50:45,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 52 proven. 85 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-23 01:50:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 110 states and 211 transitions. [2021-11-23 01:50:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 211 transitions. [2021-11-23 01:50:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-23 01:50:48,400 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:48,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:48,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:50:48,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:49,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 54 proven. 70 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-23 01:50:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 111 states and 213 transitions. [2021-11-23 01:50:51,776 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 213 transitions. [2021-11-23 01:50:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-23 01:50:51,777 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:51,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:51,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 01:50:51,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1548 backedges. 54 proven. 90 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-23 01:50:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 112 states and 216 transitions. [2021-11-23 01:50:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 216 transitions. [2021-11-23 01:50:55,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-23 01:50:55,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:55,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:55,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:50:55,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:50:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 56 proven. 70 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-23 01:50:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:50:59,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 113 states and 218 transitions. [2021-11-23 01:50:59,165 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 218 transitions. [2021-11-23 01:50:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-23 01:50:59,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:50:59,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:59,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:50:59,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1663 backedges. 56 proven. 95 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-23 01:51:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 114 states and 219 transitions. [2021-11-23 01:51:02,135 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 219 transitions. [2021-11-23 01:51:02,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-23 01:51:02,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:02,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:02,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:51:02,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1782 backedges. 58 proven. 100 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-23 01:51:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 115 states and 222 transitions. [2021-11-23 01:51:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 222 transitions. [2021-11-23 01:51:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-23 01:51:03,750 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:03,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:03,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:51:03,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 159 proven. 13 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2021-11-23 01:51:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 115 states and 221 transitions. [2021-11-23 01:51:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 221 transitions. [2021-11-23 01:51:04,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-23 01:51:04,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:04,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:04,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 01:51:04,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2027 backedges. 62 proven. 105 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-23 01:51:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 118 states and 227 transitions. [2021-11-23 01:51:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 227 transitions. [2021-11-23 01:51:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-23 01:51:09,540 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:09,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:09,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:51:09,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 62 proven. 123 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-23 01:51:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 121 states and 232 transitions. [2021-11-23 01:51:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 232 transitions. [2021-11-23 01:51:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 01:51:13,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:13,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:13,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 01:51:13,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2153 backedges. 64 proven. 105 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-23 01:51:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 122 states and 235 transitions. [2021-11-23 01:51:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 235 transitions. [2021-11-23 01:51:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-23 01:51:18,930 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:18,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:19,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-23 01:51:19,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 64 proven. 129 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-23 01:51:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 123 states and 238 transitions. [2021-11-23 01:51:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 238 transitions. [2021-11-23 01:51:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-23 01:51:23,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:23,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:23,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 01:51:23,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 66 proven. 105 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-23 01:51:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 125 states and 242 transitions. [2021-11-23 01:51:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 242 transitions. [2021-11-23 01:51:29,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-23 01:51:29,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:29,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:29,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 01:51:29,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 66 proven. 135 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-23 01:51:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 126 states and 243 transitions. [2021-11-23 01:51:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 243 transitions. [2021-11-23 01:51:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-23 01:51:33,858 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:33,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:33,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:51:33,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 68 proven. 141 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2021-11-23 01:51:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 127 states and 246 transitions. [2021-11-23 01:51:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 246 transitions. [2021-11-23 01:51:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-23 01:51:35,943 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:35,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:36,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:51:36,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2597 backedges. 189 proven. 13 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2021-11-23 01:51:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:37,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 127 states and 245 transitions. [2021-11-23 01:51:37,221 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 245 transitions. [2021-11-23 01:51:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-23 01:51:37,223 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:37,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:37,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 01:51:37,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 72 proven. 147 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2021-11-23 01:51:43,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 130 states and 251 transitions. [2021-11-23 01:51:43,661 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 251 transitions. [2021-11-23 01:51:43,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-23 01:51:43,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:43,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:43,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:51:43,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2760 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 2382 trivial. 0 not checked. [2021-11-23 01:51:53,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:51:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 90 states and 160 transitions. [2021-11-23 01:51:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 160 transitions. [2021-11-23 01:51:53,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-23 01:51:53,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:51:53,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:53,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-23 01:51:53,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2885 backedges. 74 proven. 147 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-11-23 01:52:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:52:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 89 states and 156 transitions. [2021-11-23 01:52:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 156 transitions. [2021-11-23 01:52:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-23 01:52:00,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:52:00,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:52:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:00,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-23 01:52:00,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:52:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3035 backedges. 76 proven. 147 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2021-11-23 01:52:13,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:52:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:52:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 82 states and 146 transitions. [2021-11-23 01:52:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 146 transitions. [2021-11-23 01:52:13,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:52:13,912 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 59 iterations. [2021-11-23 01:52:13,918 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:52:17,940 INFO L560 CodeCheckObserver]: Invariant with dag size 109 [2021-11-23 01:52:17,955 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:52:17,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:52:17 ImpRootNode [2021-11-23 01:52:17,956 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:52:17,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:52:17,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:52:17,957 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:52:17,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:46" (3/4) ... [2021-11-23 01:52:17,960 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:52:17,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:52:17,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 01:52:17,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:52:17,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:52:17,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:52:18,014 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:52:18,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:52:18,015 INFO L158 Benchmark]: Toolchain (without parser) took 152036.15ms. Allocated memory was 96.5MB in the beginning and 903.9MB in the end (delta: 807.4MB). Free memory was 75.9MB in the beginning and 765.0MB in the end (delta: -689.1MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,016 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:52:18,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.15ms. Allocated memory is still 96.5MB. Free memory was 75.7MB in the beginning and 72.7MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.16ms. Allocated memory is still 96.5MB. Free memory was 72.5MB in the beginning and 71.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,017 INFO L158 Benchmark]: Boogie Preprocessor took 21.41ms. Allocated memory is still 96.5MB. Free memory was 71.0MB in the beginning and 69.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,018 INFO L158 Benchmark]: RCFGBuilder took 413.64ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 59.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,018 INFO L158 Benchmark]: CodeCheck took 151189.38ms. Allocated memory was 96.5MB in the beginning and 903.9MB in the end (delta: 807.4MB). Free memory was 59.1MB in the beginning and 768.2MB in the end (delta: -709.1MB). Peak memory consumption was 555.1MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,019 INFO L158 Benchmark]: Witness Printer took 57.96ms. Allocated memory is still 903.9MB. Free memory was 768.2MB in the beginning and 765.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:52:18,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 147.1s, OverallIterations: 59, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16101 SdHoareTripleChecker+Valid, 170.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2447 mSDsluCounter, 4917 SdHoareTripleChecker+Invalid, 151.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2998 mSDsCounter, 24193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56282 IncrementalHoareTripleChecker+Invalid, 80475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24193 mSolverCounterUnsat, 1919 mSDtfsCounter, 56282 mSolverCounterSat, 1.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51648 GetRequests, 49541 SyntacticMatches, 1447 SemanticMatches, 660 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315495 ImplicationChecksByTransitivity, 104.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.4s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 46.4s InterpolantComputationTime, 6440 NumberOfCodeBlocks, 6440 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 6382 ConstructedInterpolants, 0 QuantifiedInterpolants, 30889 SizeOfPredicates, 89 NumberOfNonLiveVariables, 14926 ConjunctsInSsa, 1396 ConjunctsInUnsatCore, 58 InterpolantComputations, 7 PerfectInterpolantSequences, 58035/60692 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((((((!(z < 7 + 6 * n && 6 + 6 * n <= z) || (!(x == 1) && y < 8)) || (19 + 18 * n <= y && !(x < 12 * n + 145 && 144 + 12 * n <= x))) || (((((!((n == 4 && y < 38 + 6 * n) && 37 + 6 * n <= y) && !((5 == n && 31 + 12 * n <= y) && y < 32 + 12 * n)) && !((37 <= y && y < 38) && 3 == n)) && !((n == 1 && y < 8) && 7 <= y)) && !((6 == n && y < 18 * n + 20) && 19 + 18 * n <= y)) && !((2 == n && 19 <= y) && y < 20))) || ((19 <= y && y < 20) && !(8 <= x && x < 9))) || (3 == n && !(x < 28 && 27 <= x))) || n <= a + 1) || ((!(x < 65 && 64 <= x) && y < 38 + 6 * n) && 37 + 6 * n <= y)) || ((31 + 12 * n <= y && y < 32 + 12 * n) && !(125 <= x && x < 126)) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.15ms. Allocated memory is still 96.5MB. Free memory was 75.7MB in the beginning and 72.7MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.16ms. Allocated memory is still 96.5MB. Free memory was 72.5MB in the beginning and 71.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.41ms. Allocated memory is still 96.5MB. Free memory was 71.0MB in the beginning and 69.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.64ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 59.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 151189.38ms. Allocated memory was 96.5MB in the beginning and 903.9MB in the end (delta: 807.4MB). Free memory was 59.1MB in the beginning and 768.2MB in the end (delta: -709.1MB). Peak memory consumption was 555.1MB. Max. memory is 16.1GB. * Witness Printer took 57.96ms. Allocated memory is still 903.9MB. Free memory was 768.2MB in the beginning and 765.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:52:18,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d9cb88-49df-4c3d-a7db-1a4de15e7bf8/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE