./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound100.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_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/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_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/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_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/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 ecbe5f0ce97488539db604edfadf8e9064f15df8e290f20f11bd6c6bd2401ed2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:35:50,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:35:50,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:35:50,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:35:50,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:35:50,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:35:50,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:35:50,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:35:50,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:35:50,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:35:50,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:35:50,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:35:50,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:35:50,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:35:50,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:35:50,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:35:50,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:35:50,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:35:50,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:35:50,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:35:50,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:35:50,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:35:50,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:35:50,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:35:50,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:35:50,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:35:50,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:35:50,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:35:50,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:35:50,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:35:50,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:35:50,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:35:50,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:35:50,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:35:50,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:35:50,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:35:50,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:35:50,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:35:50,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:35:50,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:35:50,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:35:50,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:35:50,474 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:35:50,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:35:50,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:35:50,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:35:50,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:35:50,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:35:50,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:35:50,479 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:35:50,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:35:50,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:35:50,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:35:50,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:35:50,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:35:50,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:35:50,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:35:50,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:35:50,482 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:35:50,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:35:50,483 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:35:50,483 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:35:50,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:35:50,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:35:50,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:35:50,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:35:50,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:35:50,485 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:35:50,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:35:50,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:35:50,485 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_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbe5f0ce97488539db604edfadf8e9064f15df8e290f20f11bd6c6bd2401ed2 [2021-11-23 01:35:50,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:35:50,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:35:50,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:35:50,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:35:50,831 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:35:50,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound100.c [2021-11-23 01:35:50,916 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/data/35dc369e5/fd9342b71a8847548615754d4835517c/FLAGb122cb01b [2021-11-23 01:35:51,497 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:35:51,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound100.c [2021-11-23 01:35:51,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/data/35dc369e5/fd9342b71a8847548615754d4835517c/FLAGb122cb01b [2021-11-23 01:35:51,861 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/data/35dc369e5/fd9342b71a8847548615754d4835517c [2021-11-23 01:35:51,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:35:51,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:35:51,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:35:51,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:35:51,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:35:51,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:51" (1/1) ... [2021-11-23 01:35:51,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d73134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:51, skipping insertion in model container [2021-11-23 01:35:51,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:51" (1/1) ... [2021-11-23 01:35:51,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:35:51,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:35:52,172 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_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound100.c[520,533] [2021-11-23 01:35:52,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:35:52,204 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:35:52,219 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_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound100.c[520,533] [2021-11-23 01:35:52,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:35:52,258 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:35:52,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52 WrapperNode [2021-11-23 01:35:52,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:35:52,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:35:52,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:35:52,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:35:52,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,299 INFO L137 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2021-11-23 01:35:52,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:35:52,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:35:52,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:35:52,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:35:52,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:35:52,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:35:52,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:35:52,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:35:52,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:35:52,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:35:52,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:35:52,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:35:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:35:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:35:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:35:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:35:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:35:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:35:52,512 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:35:52,514 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:35:52,675 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:35:52,718 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:35:52,720 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:35:52,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:52 BoogieIcfgContainer [2021-11-23 01:35:52,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:35:52,724 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:35:52,725 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:35:52,735 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:35:52,735 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:52" (1/1) ... [2021-11-23 01:35:52,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:35:52,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-11-23 01:35:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-11-23 01:35:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:35:52,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:52,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:53,157 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 01:35:53,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2021-11-23 01:35:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2021-11-23 01:35:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:35:53,278 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:53,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:53,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:35:53,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:53,443 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 01:35:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:53,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2021-11-23 01:35:53,645 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2021-11-23 01:35:53,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:35:53,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:53,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:53,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:35:53,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:53,842 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 01:35:53,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:53,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2021-11-23 01:35:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2021-11-23 01:35:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:35:53,943 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:53,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:53,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:53,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:35:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2021-11-23 01:35:54,508 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-11-23 01:35:54,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:35:54,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:54,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:54,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:54,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:35:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2021-11-23 01:35:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2021-11-23 01:35:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:35:54,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:54,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:54,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:54,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 01:35:55,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2021-11-23 01:35:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-23 01:35:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:35:55,290 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:55,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:55,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:35:55,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:55,485 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:35:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2021-11-23 01:35:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-11-23 01:35:55,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:35:55,802 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:55,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:55,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:55,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:56,042 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:35:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2021-11-23 01:35:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2021-11-23 01:35:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:35:56,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:56,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:56,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:56,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:35:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2021-11-23 01:35:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2021-11-23 01:35:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:35:56,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:56,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:56,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:56,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-23 01:35:57,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2021-11-23 01:35:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2021-11-23 01:35:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:35:57,027 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:57,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:57,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:35:57,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:35:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2021-11-23 01:35:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2021-11-23 01:35:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 01:35:57,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:57,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:57,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:57,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 01:35:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2021-11-23 01:35:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2021-11-23 01:35:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 01:35:57,697 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:57,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:57,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:35:57,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:35:58,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2021-11-23 01:35:58,309 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2021-11-23 01:35:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 01:35:58,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:58,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:58,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:35:58,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:58,545 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:35:58,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2021-11-23 01:35:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2021-11-23 01:35:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:35:58,909 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:58,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:58,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:58,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-11-23 01:35:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2021-11-23 01:35:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2021-11-23 01:35:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 01:35:59,174 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:59,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:59,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:35:59,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:35:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2021-11-23 01:35:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2021-11-23 01:35:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:35:59,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:59,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:59,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:35:59,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:59,941 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-23 01:35:59,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2021-11-23 01:35:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2021-11-23 01:35:59,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:35:59,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:59,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:00,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:36:00,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 01:36:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:00,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2021-11-23 01:36:00,806 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2021-11-23 01:36:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 01:36:00,807 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:00,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:00,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:36:00,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:36:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2021-11-23 01:36:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2021-11-23 01:36:01,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 01:36:01,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:01,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:01,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:01,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-23 01:36:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2021-11-23 01:36:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2021-11-23 01:36:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 01:36:01,745 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:01,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:01,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:36:01,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:36:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 91 transitions. [2021-11-23 01:36:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2021-11-23 01:36:02,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 01:36:02,505 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:02,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:02,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:02,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-23 01:36:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 51 states and 90 transitions. [2021-11-23 01:36:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2021-11-23 01:36:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 01:36:02,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:02,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:02,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 01:36:02,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 26 proven. 42 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:36:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 92 transitions. [2021-11-23 01:36:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 92 transitions. [2021-11-23 01:36:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 01:36:03,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:03,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:03,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:36:03,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 28 proven. 46 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-23 01:36:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 53 states and 96 transitions. [2021-11-23 01:36:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 96 transitions. [2021-11-23 01:36:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-23 01:36:04,621 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:04,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:04,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:04,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-11-23 01:36:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 54 states and 97 transitions. [2021-11-23 01:36:04,956 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2021-11-23 01:36:04,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 01:36:04,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:04,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:04,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:36:05,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 30 proven. 60 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-23 01:36:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 57 states and 103 transitions. [2021-11-23 01:36:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 103 transitions. [2021-11-23 01:36:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-23 01:36:05,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:05,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:05,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:05,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 78 proven. 7 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-23 01:36:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 57 states and 102 transitions. [2021-11-23 01:36:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 102 transitions. [2021-11-23 01:36:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 01:36:06,070 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:06,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:06,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:36:06,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 32 proven. 65 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:36:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 58 states and 104 transitions. [2021-11-23 01:36:07,245 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 104 transitions. [2021-11-23 01:36:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 01:36:07,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:07,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:07,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:36:07,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 34 proven. 70 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:36:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 59 states and 108 transitions. [2021-11-23 01:36:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 108 transitions. [2021-11-23 01:36:08,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-23 01:36:08,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:08,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:08,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:08,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 95 proven. 7 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2021-11-23 01:36:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:08,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 60 states and 109 transitions. [2021-11-23 01:36:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 109 transitions. [2021-11-23 01:36:08,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 01:36:08,580 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:08,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:08,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:36:08,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:36:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:09,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 63 states and 115 transitions. [2021-11-23 01:36:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 115 transitions. [2021-11-23 01:36:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-23 01:36:09,513 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:09,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:09,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:09,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 95 proven. 7 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2021-11-23 01:36:09,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 63 states and 114 transitions. [2021-11-23 01:36:09,793 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 114 transitions. [2021-11-23 01:36:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 01:36:09,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:09,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:09,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 01:36:09,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 38 proven. 93 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 01:36:11,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 64 states and 116 transitions. [2021-11-23 01:36:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 116 transitions. [2021-11-23 01:36:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 01:36:11,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:11,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:11,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:36:11,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 40 proven. 99 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-23 01:36:12,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:12,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 65 states and 120 transitions. [2021-11-23 01:36:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 120 transitions. [2021-11-23 01:36:12,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 01:36:12,205 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:12,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:12,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:12,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 987 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-11-23 01:36:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:12,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 66 states and 121 transitions. [2021-11-23 01:36:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2021-11-23 01:36:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 01:36:12,634 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:12,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:12,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:36:12,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 42 proven. 119 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:36:13,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 69 states and 127 transitions. [2021-11-23 01:36:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 127 transitions. [2021-11-23 01:36:13,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 01:36:13,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:13,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:13,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:13,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 112 proven. 7 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2021-11-23 01:36:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:14,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 69 states and 126 transitions. [2021-11-23 01:36:14,065 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 126 transitions. [2021-11-23 01:36:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 01:36:14,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:14,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:14,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 01:36:14,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 44 proven. 126 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:36:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 70 states and 128 transitions. [2021-11-23 01:36:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2021-11-23 01:36:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 01:36:15,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:15,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:15,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:36:15,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 46 proven. 133 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:36:16,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 71 states and 132 transitions. [2021-11-23 01:36:16,983 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 132 transitions. [2021-11-23 01:36:16,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-23 01:36:16,985 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:16,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:17,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:17,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 131 proven. 7 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2021-11-23 01:36:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 72 states and 133 transitions. [2021-11-23 01:36:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 133 transitions. [2021-11-23 01:36:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-23 01:36:17,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:17,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:17,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:36:17,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1308 backedges. 48 proven. 156 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-23 01:36:18,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 75 states and 139 transitions. [2021-11-23 01:36:18,683 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 139 transitions. [2021-11-23 01:36:18,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-23 01:36:18,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:18,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:18,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:18,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 129 proven. 7 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2021-11-23 01:36:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 75 states and 138 transitions. [2021-11-23 01:36:19,039 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 138 transitions. [2021-11-23 01:36:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-23 01:36:19,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:19,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:19,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-23 01:36:19,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 50 proven. 164 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-23 01:36:20,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 76 states and 140 transitions. [2021-11-23 01:36:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 140 transitions. [2021-11-23 01:36:20,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-23 01:36:20,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:20,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:20,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:36:20,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 52 proven. 172 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-23 01:36:22,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 77 states and 144 transitions. [2021-11-23 01:36:22,127 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 144 transitions. [2021-11-23 01:36:22,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-23 01:36:22,128 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:22,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:22,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:22,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:22,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 149 proven. 7 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-11-23 01:36:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 78 states and 145 transitions. [2021-11-23 01:36:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 145 transitions. [2021-11-23 01:36:22,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 01:36:22,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:22,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:22,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:36:22,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 54 proven. 198 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-23 01:36:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:23,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 81 states and 151 transitions. [2021-11-23 01:36:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 151 transitions. [2021-11-23 01:36:23,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-23 01:36:23,879 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:23,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:23,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:23,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1748 backedges. 146 proven. 7 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-23 01:36:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:24,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 81 states and 150 transitions. [2021-11-23 01:36:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 150 transitions. [2021-11-23 01:36:24,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-23 01:36:24,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:24,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:24,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-23 01:36:24,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:25,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 56 proven. 207 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-23 01:36:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:26,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 82 states and 152 transitions. [2021-11-23 01:36:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 152 transitions. [2021-11-23 01:36:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-23 01:36:26,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:26,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:26,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:36:26,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 58 proven. 216 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-23 01:36:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 83 states and 156 transitions. [2021-11-23 01:36:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 156 transitions. [2021-11-23 01:36:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 01:36:27,956 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:27,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:28,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:28,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 167 proven. 7 refuted. 0 times theorem prover too weak. 1851 trivial. 0 not checked. [2021-11-23 01:36:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:28,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 84 states and 157 transitions. [2021-11-23 01:36:28,541 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 157 transitions. [2021-11-23 01:36:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-23 01:36:28,543 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:28,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:28,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-23 01:36:28,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 60 proven. 245 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2021-11-23 01:36:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 87 states and 163 transitions. [2021-11-23 01:36:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 163 transitions. [2021-11-23 01:36:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-23 01:36:30,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:30,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:30,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:30,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:30,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2147 backedges. 163 proven. 7 refuted. 0 times theorem prover too weak. 1977 trivial. 0 not checked. [2021-11-23 01:36:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 87 states and 162 transitions. [2021-11-23 01:36:30,515 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 162 transitions. [2021-11-23 01:36:30,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 01:36:30,516 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:30,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:30,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-23 01:36:30,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 62 proven. 255 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-23 01:36:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 88 states and 164 transitions. [2021-11-23 01:36:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 164 transitions. [2021-11-23 01:36:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-23 01:36:32,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:32,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:32,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-23 01:36:32,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 64 proven. 265 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-23 01:36:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 89 states and 168 transitions. [2021-11-23 01:36:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 168 transitions. [2021-11-23 01:36:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-23 01:36:34,652 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:34,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:34,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:34,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 185 proven. 7 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2021-11-23 01:36:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 90 states and 169 transitions. [2021-11-23 01:36:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 169 transitions. [2021-11-23 01:36:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-23 01:36:35,152 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:35,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:35,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:36:35,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2475 backedges. 313 proven. 50 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-23 01:36:43,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:43,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 71 states and 116 transitions. [2021-11-23 01:36:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 116 transitions. [2021-11-23 01:36:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-23 01:36:43,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:43,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:43,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:36:43,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2587 backedges. 180 proven. 7 refuted. 0 times theorem prover too weak. 2400 trivial. 0 not checked. [2021-11-23 01:36:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:44,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 65 states and 109 transitions. [2021-11-23 01:36:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 109 transitions. [2021-11-23 01:36:44,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:36:44,892 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 58 iterations. [2021-11-23 01:36:44,917 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:36:46,654 INFO L560 CodeCheckObserver]: Invariant with dag size 92 [2021-11-23 01:36:46,667 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:36:46,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:36:46 ImpRootNode [2021-11-23 01:36:46,668 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:36:46,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:36:46,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:36:46,669 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:36:46,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:52" (3/4) ... [2021-11-23 01:36:46,674 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:36:46,679 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:36:46,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 01:36:46,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:36:46,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:36:46,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:36:46,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:36:46,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:36:46,748 INFO L158 Benchmark]: Toolchain (without parser) took 54882.81ms. Allocated memory was 96.5MB in the beginning and 293.6MB in the end (delta: 197.1MB). Free memory was 68.4MB in the beginning and 142.1MB in the end (delta: -73.7MB). Peak memory consumption was 122.5MB. Max. memory is 16.1GB. [2021-11-23 01:36:46,749 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:36:46,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.33ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 71.8MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:36:46,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.06ms. Allocated memory is still 96.5MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:36:46,750 INFO L158 Benchmark]: Boogie Preprocessor took 44.14ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 69.2MB in the end (delta: 883.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:36:46,750 INFO L158 Benchmark]: RCFGBuilder took 377.97ms. Allocated memory is still 96.5MB. Free memory was 69.2MB in the beginning and 59.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:36:46,751 INFO L158 Benchmark]: CodeCheck took 53943.94ms. Allocated memory was 96.5MB in the beginning and 293.6MB in the end (delta: 197.1MB). Free memory was 59.0MB in the beginning and 145.2MB in the end (delta: -86.2MB). Peak memory consumption was 113.7MB. Max. memory is 16.1GB. [2021-11-23 01:36:46,751 INFO L158 Benchmark]: Witness Printer took 78.43ms. Allocated memory is still 293.6MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:36:46,754 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.1s, OverallIterations: 58, 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, 9479 SdHoareTripleChecker+Valid, 84.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2258 mSDsluCounter, 4431 SdHoareTripleChecker+Invalid, 72.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3036 mSDsCounter, 17676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33568 IncrementalHoareTripleChecker+Invalid, 51244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17676 mSolverCounterUnsat, 1395 mSDtfsCounter, 33568 mSolverCounterSat, 1.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36472 GetRequests, 35021 SyntacticMatches, 1111 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79111 ImplicationChecksByTransitivity, 31.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 5802 NumberOfCodeBlocks, 5802 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 5745 ConstructedInterpolants, 0 QuantifiedInterpolants, 16229 SizeOfPredicates, 91 NumberOfNonLiveVariables, 13756 ConjunctsInSsa, 1295 ConjunctsInUnsatCore, 57 InterpolantComputations, 3 PerfectInterpolantSequences, 46424/49605 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: 14]: 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: 30]: Loop Invariant Derived loop invariant: ((((((((((16 == s && 3 == a) || (s == 36 && 5 == a)) || (9 == s && 2 == a)) || (t == 17 && 81 == s)) || (s == 2 + 2 * a && 2 == 2 * a)) || (((((((((!(21 == t && a == 10) && !(5 == t && 2 == a)) && !(6 == a && t == 13)) && !(t == 1 + 2 * a && 2 == 2 * a)) && !(9 == t && a == 4)) && !(t == 15 && 7 == a)) && !(9 == a && 19 == t)) && !(a == 8 && t == 17)) && !(t == 11 && 5 == a)) && !(7 == t && 3 == a))) || (s == 121 && a == 10)) || (49 == s && t == 13)) || (7 == a && 64 == s)) || (s == 25 && a == 4)) || (s == 100 && 19 == t) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.33ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 71.8MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.06ms. Allocated memory is still 96.5MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.14ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 69.2MB in the end (delta: 883.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.97ms. Allocated memory is still 96.5MB. Free memory was 69.2MB in the beginning and 59.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 53943.94ms. Allocated memory was 96.5MB in the beginning and 293.6MB in the end (delta: 197.1MB). Free memory was 59.0MB in the beginning and 145.2MB in the end (delta: -86.2MB). Peak memory consumption was 113.7MB. Max. memory is 16.1GB. * Witness Printer took 78.43ms. Allocated memory is still 293.6MB. Free memory was 145.2MB in the beginning and 142.1MB 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 01:36:46,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff83367-cc8e-44dc-9bf9-900e2c55cdf3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE