./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label25.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label25.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak --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 5c11f81acb23d199db5ff3acfeb2ee342874a261 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:59:13,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:59:13,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:59:13,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:59:13,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:59:13,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:59:13,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:59:13,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:59:13,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:59:13,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:59:13,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:59:13,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:59:13,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:59:13,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:59:13,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:59:13,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:59:13,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:59:13,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:59:13,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:59:13,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:59:13,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:59:13,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:59:13,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:59:13,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:59:13,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:59:13,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:59:13,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:59:13,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:59:13,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:59:13,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:59:13,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:59:13,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:59:13,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:59:13,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:59:13,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:59:13,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:59:13,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:59:13,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:59:13,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:59:13,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:59:13,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:59:13,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:59:13,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:59:13,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:59:13,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:59:13,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:59:13,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:59:13,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:59:13,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:59:13,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:59:13,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:59:13,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:59:13,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:59:13,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:59:13,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:59:13,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:59:13,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:59:13,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:59:13,422 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:59:13,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:59:13,423 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:59:13,423 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:59:13,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:59:13,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:59:13,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:59:13,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:59:13,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:59:13,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:59:13,425 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:59:13,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:59:13,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:59:13,425 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-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c11f81acb23d199db5ff3acfeb2ee342874a261 [2020-12-01 17:59:13,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:59:13,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:59:13,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:59:13,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:59:13,786 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:59:13,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem01_label25.c [2020-12-01 17:59:13,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/data/793dde1e9/609cd7ed65944d23bcd7dd023249d793/FLAG1bf9ebd13 [2020-12-01 17:59:14,707 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:59:14,708 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/sv-benchmarks/c/eca-rers2012/Problem01_label25.c [2020-12-01 17:59:14,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/data/793dde1e9/609cd7ed65944d23bcd7dd023249d793/FLAG1bf9ebd13 [2020-12-01 17:59:14,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/data/793dde1e9/609cd7ed65944d23bcd7dd023249d793 [2020-12-01 17:59:14,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:59:14,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:59:14,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:59:14,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:59:14,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:59:14,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:59:14" (1/1) ... [2020-12-01 17:59:14,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6787696a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:14, skipping insertion in model container [2020-12-01 17:59:14,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:59:14" (1/1) ... [2020-12-01 17:59:14,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:59:15,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:59:15,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:59:15,571 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:59:15,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:59:15,749 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:59:15,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15 WrapperNode [2020-12-01 17:59:15,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:59:15,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:59:15,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:59:15,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:59:15,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:59:15,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:59:15,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:59:15,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:59:15,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... [2020-12-01 17:59:15,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:59:15,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:59:15,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:59:15,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:59:15,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:59:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:59:16,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:59:16,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:59:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:59:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:59:18,859 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:59:18,859 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 17:59:18,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:59:18 BoogieIcfgContainer [2020-12-01 17:59:18,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:59:18,865 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:59:18,866 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:59:18,882 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:59:18,882 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:59:18" (1/1) ... [2020-12-01 17:59:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:59:18,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 76 states and 144 transitions. [2020-12-01 17:59:18,964 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 144 transitions. [2020-12-01 17:59:18,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-01 17:59:18,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 145 states and 220 transitions. [2020-12-01 17:59:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2020-12-01 17:59:20,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 17:59:20,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:21,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 214 states and 297 transitions. [2020-12-01 17:59:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 297 transitions. [2020-12-01 17:59:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-01 17:59:21,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:23,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 283 states and 367 transitions. [2020-12-01 17:59:23,125 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 367 transitions. [2020-12-01 17:59:23,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 17:59:23,129 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 294 states and 380 transitions. [2020-12-01 17:59:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 380 transitions. [2020-12-01 17:59:23,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-01 17:59:23,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:59:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 303 states and 391 transitions. [2020-12-01 17:59:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 391 transitions. [2020-12-01 17:59:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 17:59:24,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:24,584 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-01 17:59:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 316 states and 407 transitions. [2020-12-01 17:59:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 407 transitions. [2020-12-01 17:59:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-01 17:59:25,360 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 327 states and 420 transitions. [2020-12-01 17:59:25,703 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 420 transitions. [2020-12-01 17:59:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-01 17:59:25,706 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:25,765 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 17:59:26,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:26,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 344 states and 439 transitions. [2020-12-01 17:59:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 439 transitions. [2020-12-01 17:59:26,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 17:59:26,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:59:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 373 states and 470 transitions. [2020-12-01 17:59:27,426 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 470 transitions. [2020-12-01 17:59:27,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-01 17:59:27,430 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:59:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 421 states and 523 transitions. [2020-12-01 17:59:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 523 transitions. [2020-12-01 17:59:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-01 17:59:28,983 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-01 17:59:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:29,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 424 states and 527 transitions. [2020-12-01 17:59:29,496 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 527 transitions. [2020-12-01 17:59:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-12-01 17:59:29,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 17:59:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 454 states and 560 transitions. [2020-12-01 17:59:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 560 transitions. [2020-12-01 17:59:30,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-01 17:59:30,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 17:59:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 469 states and 577 transitions. [2020-12-01 17:59:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 577 transitions. [2020-12-01 17:59:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-01 17:59:31,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:31,598 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:59:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 470 states and 577 transitions. [2020-12-01 17:59:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 577 transitions. [2020-12-01 17:59:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-01 17:59:31,712 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 507 states and 618 transitions. [2020-12-01 17:59:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 618 transitions. [2020-12-01 17:59:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-01 17:59:33,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-01 17:59:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 553 states and 666 transitions. [2020-12-01 17:59:35,467 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 666 transitions. [2020-12-01 17:59:35,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-12-01 17:59:35,469 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 80 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 562 states and 678 transitions. [2020-12-01 17:59:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 678 transitions. [2020-12-01 17:59:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-01 17:59:36,444 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:59:36,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:36,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 564 states and 679 transitions. [2020-12-01 17:59:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 679 transitions. [2020-12-01 17:59:36,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-01 17:59:36,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-01 17:59:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 573 states and 691 transitions. [2020-12-01 17:59:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 691 transitions. [2020-12-01 17:59:37,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-01 17:59:37,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-01 17:59:38,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 598 states and 715 transitions. [2020-12-01 17:59:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 715 transitions. [2020-12-01 17:59:38,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-01 17:59:38,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 17:59:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 607 states and 725 transitions. [2020-12-01 17:59:38,592 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 725 transitions. [2020-12-01 17:59:38,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-01 17:59:38,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 17:59:39,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 637 states and 759 transitions. [2020-12-01 17:59:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 759 transitions. [2020-12-01 17:59:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-01 17:59:39,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:39,341 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 17:59:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 662 states and 784 transitions. [2020-12-01 17:59:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 784 transitions. [2020-12-01 17:59:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-01 17:59:39,852 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 701 states and 828 transitions. [2020-12-01 17:59:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 828 transitions. [2020-12-01 17:59:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-12-01 17:59:40,747 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:41,168 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 159 proven. 35 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 17:59:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 780 states and 918 transitions. [2020-12-01 17:59:43,821 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 918 transitions. [2020-12-01 17:59:43,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-12-01 17:59:43,823 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 124 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 895 states and 1057 transitions. [2020-12-01 17:59:49,269 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1057 transitions. [2020-12-01 17:59:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-12-01 17:59:49,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 124 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 910 states and 1074 transitions. [2020-12-01 17:59:50,079 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1074 transitions. [2020-12-01 17:59:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-12-01 17:59:50,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:59:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 912 states and 1075 transitions. [2020-12-01 17:59:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1075 transitions. [2020-12-01 17:59:50,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-01 17:59:50,358 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-12-01 17:59:53,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 982 states and 1147 transitions. [2020-12-01 17:59:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1147 transitions. [2020-12-01 17:59:53,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-01 17:59:53,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 999 states and 1167 transitions. [2020-12-01 17:59:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1167 transitions. [2020-12-01 17:59:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-01 17:59:53,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1015 states and 1185 transitions. [2020-12-01 17:59:55,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1185 transitions. [2020-12-01 17:59:55,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-01 17:59:55,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:59:55,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1030 states and 1201 transitions. [2020-12-01 17:59:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1201 transitions. [2020-12-01 17:59:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-12-01 17:59:55,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:56,045 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-12-01 17:59:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:59:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1100 states and 1273 transitions. [2020-12-01 17:59:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1273 transitions. [2020-12-01 17:59:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-12-01 17:59:58,869 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:59:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:59:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 175 proven. 83 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 18:00:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1252 states and 1447 transitions. [2020-12-01 18:00:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1447 transitions. [2020-12-01 18:00:03,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-12-01 18:00:03,413 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 185 proven. 88 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 18:00:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1326 states and 1523 transitions. [2020-12-01 18:00:05,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1523 transitions. [2020-12-01 18:00:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-12-01 18:00:05,670 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-12-01 18:00:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:06,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1327 states and 1523 transitions. [2020-12-01 18:00:06,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1523 transitions. [2020-12-01 18:00:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-12-01 18:00:06,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-01 18:00:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1349 states and 1546 transitions. [2020-12-01 18:00:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1546 transitions. [2020-12-01 18:00:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-12-01 18:00:07,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 324 proven. 51 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-01 18:00:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1426 states and 1643 transitions. [2020-12-01 18:00:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1643 transitions. [2020-12-01 18:00:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-12-01 18:00:11,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-12-01 18:00:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1467 states and 1684 transitions. [2020-12-01 18:00:13,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1684 transitions. [2020-12-01 18:00:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-12-01 18:00:13,413 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-12-01 18:00:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1492 states and 1714 transitions. [2020-12-01 18:00:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1714 transitions. [2020-12-01 18:00:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-12-01 18:00:14,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 277 proven. 68 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-01 18:00:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1513 states and 1734 transitions. [2020-12-01 18:00:15,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1734 transitions. [2020-12-01 18:00:15,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-12-01 18:00:15,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:15,939 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-12-01 18:00:16,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1515 states and 1737 transitions. [2020-12-01 18:00:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1737 transitions. [2020-12-01 18:00:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-12-01 18:00:16,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 356 proven. 86 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-12-01 18:00:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1610 states and 1842 transitions. [2020-12-01 18:00:18,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1842 transitions. [2020-12-01 18:00:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-12-01 18:00:18,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-12-01 18:00:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1651 states and 1890 transitions. [2020-12-01 18:00:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1890 transitions. [2020-12-01 18:00:21,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-12-01 18:00:21,062 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 355 proven. 101 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-12-01 18:00:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1660 states and 1899 transitions. [2020-12-01 18:00:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 1899 transitions. [2020-12-01 18:00:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-12-01 18:00:22,324 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-01 18:00:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1676 states and 1917 transitions. [2020-12-01 18:00:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 1917 transitions. [2020-12-01 18:00:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-12-01 18:00:23,294 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 453 proven. 24 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-12-01 18:00:24,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1677 states and 1918 transitions. [2020-12-01 18:00:24,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 1918 transitions. [2020-12-01 18:00:24,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-12-01 18:00:24,474 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 434 proven. 103 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-12-01 18:00:27,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 1804 states and 2060 transitions. [2020-12-01 18:00:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2060 transitions. [2020-12-01 18:00:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-12-01 18:00:27,182 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 487 proven. 174 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-12-01 18:00:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 1874 states and 2139 transitions. [2020-12-01 18:00:32,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2139 transitions. [2020-12-01 18:00:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-12-01 18:00:32,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:32,816 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 487 proven. 174 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-12-01 18:00:33,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 1879 states and 2144 transitions. [2020-12-01 18:00:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2144 transitions. [2020-12-01 18:00:33,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-12-01 18:00:33,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 614 proven. 153 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-01 18:00:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 1865 states and 2124 transitions. [2020-12-01 18:00:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2124 transitions. [2020-12-01 18:00:37,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:00:37,480 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 52 iterations. [2020-12-01 18:00:37,492 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:00:37,948 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:38,256 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:38,515 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:38,779 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:39,127 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:39,479 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:39,843 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:40,172 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:40,540 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:40,774 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 33 [2020-12-01 18:00:41,122 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 33 [2020-12-01 18:00:41,477 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:41,788 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:42,093 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:42,426 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:42,711 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 33 [2020-12-01 18:00:43,039 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:43,380 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:43,696 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 33 [2020-12-01 18:00:44,027 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:44,351 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 33 [2020-12-01 18:00:44,623 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:44,928 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:45,239 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:45,539 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:45,842 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:46,096 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:46,375 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 33 [2020-12-01 18:00:46,672 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:46,926 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:47,176 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:47,391 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 33 [2020-12-01 18:00:47,710 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:48,090 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:48,431 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 33 [2020-12-01 18:00:48,771 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:49,139 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 33 [2020-12-01 18:00:49,484 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:49,799 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:50,130 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:50,445 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:50,772 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:51,135 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:51,444 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:51,770 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:52,110 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:52,434 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:52,773 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 33 [2020-12-01 18:00:53,144 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:53,447 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:53,782 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:54,106 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:54,414 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:54,742 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:55,070 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:55,392 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:55,739 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 33 [2020-12-01 18:00:56,053 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-12-01 18:00:56,391 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:56,702 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:57,031 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-12-01 18:00:57,357 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 33 [2020-12-01 18:00:57,711 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 33 [2020-12-01 18:00:58,054 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:58,385 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 33 [2020-12-01 18:00:58,716 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-12-01 18:00:59,060 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 32 [2020-12-01 18:00:59,397 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-12-01 18:00:59,703 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2020-12-01 18:00:59,704 INFO L569 CodeCheckObserver]: Invariant with dag size 33 [2020-12-01 18:00:59,746 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:00:59,758 INFO L569 CodeCheckObserver]: Invariant with dag size 32 [2020-12-01 18:00:59,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:00:59 ImpRootNode [2020-12-01 18:00:59,760 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:00:59,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:00:59,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:00:59,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:00:59,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:59:18" (3/4) ... [2020-12-01 18:00:59,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:00:59,822 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2020-12-01 18:00:59,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 18:00:59,836 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 18:00:59,838 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:01:00,075 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e1ac03c8-678b-4a94-8db8-531aa5ef6f14/bin/ukojak/witness.graphml [2020-12-01 18:01:00,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:01:00,077 INFO L168 Benchmark]: Toolchain (without parser) took 105122.83 ms. Allocated memory was 83.9 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 54.5 MB in the beginning and 618.7 MB in the end (delta: -564.2 MB). Peak memory consumption was 861.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,078 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 83.9 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:01:00,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.71 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 54.3 MB in the beginning and 69.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.62 ms. Allocated memory is still 109.1 MB. Free memory was 69.7 MB in the beginning and 64.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,079 INFO L168 Benchmark]: Boogie Preprocessor took 113.19 ms. Allocated memory is still 109.1 MB. Free memory was 64.2 MB in the beginning and 59.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,080 INFO L168 Benchmark]: RCFGBuilder took 2875.81 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 59.6 MB in the beginning and 103.6 MB in the end (delta: -43.9 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,081 INFO L168 Benchmark]: CodeCheck took 100895.87 ms. Allocated memory was 138.4 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 103.6 MB in the beginning and 634.5 MB in the end (delta: -530.9 MB). Peak memory consumption was 917.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,082 INFO L168 Benchmark]: Witness Printer took 314.84 ms. Allocated memory is still 1.5 GB. Free memory was 634.5 MB in the beginning and 618.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:01:00,085 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 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.5s, OverallIterations: 52, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: -1321400760 SDtfs, 1753037288 SDslu, 872162736 SDs, 0 SdLazy, -1415800102 SolverSat, -966818366 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 275.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69048 GetRequests, 65502 SyntacticMatches, 3118 SemanticMatches, 428 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161574 ImplicationChecksByTransitivity, 50.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 10186 NumberOfCodeBlocks, 10186 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 10135 ConstructedInterpolants, 0 QuantifiedInterpolants, 12621199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 51 InterpolantComputations, 35 PerfectInterpolantSequences, 11711/13021 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: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a21 == 1 && !(a17 == 1)) && a12 == 8) && a8 == 15) && 5 == a16) && !(a20 == 1)) || ((((a21 == 1 && 14 == a8) && !(a17 == 1)) && a12 == 8) && 5 == a16)) || (((((a21 == 1 && 14 == a8) && !(a17 == 1)) && a12 == 8) && a16 == 4) && !(a20 == 1))) || (((((a21 == 1 && !(a17 == 1)) && a12 == 8) && a8 == 15) && a16 == 4) && !(a20 == 1))) || (((((a21 == 1 && a12 == 8) && a8 == 15) && a20 == 1) && 5 == a16) && a17 == 1)) || !(a7 == 1)) || a8 <= 13 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((a21 == 1 && !(a17 == 1)) && a12 == 8) && a8 == 15) && 5 == a16) && !(a20 == 1)) || ((((a21 == 1 && 14 == a8) && !(a17 == 1)) && a12 == 8) && 5 == a16)) || (((((a21 == 1 && 14 == a8) && !(a17 == 1)) && a12 == 8) && a16 == 4) && !(a20 == 1))) || (((((a21 == 1 && !(a17 == 1)) && a12 == 8) && a8 == 15) && a16 == 4) && !(a20 == 1))) || !(a7 == 1)) || a8 <= 13 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 83.9 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 795.71 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 54.3 MB in the beginning and 69.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.62 ms. Allocated memory is still 109.1 MB. Free memory was 69.7 MB in the beginning and 64.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.19 ms. Allocated memory is still 109.1 MB. Free memory was 64.2 MB in the beginning and 59.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2875.81 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 59.6 MB in the beginning and 103.6 MB in the end (delta: -43.9 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * CodeCheck took 100895.87 ms. Allocated memory was 138.4 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 103.6 MB in the beginning and 634.5 MB in the end (delta: -530.9 MB). Peak memory consumption was 917.2 MB. Max. memory is 16.1 GB. * Witness Printer took 314.84 ms. Allocated memory is still 1.5 GB. Free memory was 634.5 MB in the beginning and 618.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...